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![Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12" L x 3.5" W x 4" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/1280x1280/products/4526/6791/heater_assembly26__56374.1786653889.PNG?c=2 "Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12\" L x 3.5\" W x 4\" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.")
![Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12" L x 3.5" W x 4" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/100x100/products/4526/6791/heater_assembly26__56374.1786653889.PNG?c=2 "Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12\" L x 3.5\" W x 4\" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.")
Product Description
Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
|
Specification |
Details |
|---|---|
|
Brand |
Balboa Water Group |
|
Model |
VS100 Flo-Thru Heater Assembly |
|
Heating Output |
4.0kW |
|
Type |
Flo-Thru (inline heater) |
|
Condition |
New |
|
Voltage |
240V (standard) |
|
Heater Tube Material |
Stainless steel |
|
Typical Dimensions |
Approx. 12" L x 3.5" W x 4" H (confirm with our team for your specific unit) |
|
Approximate Weight |
Approx. 2–3 lbs (may vary by configuration) |
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
- Sundance Spas
- Jacuzzi (select models)
- Cal Spas
- LA Spas
- Marquis Spas
- Master Spas
- Gatsby Spas
- Dimension One Spas
- Strong Spas
- PDC Spas
- Artesian Spas
- many more Balboa-controlled systems
Compatible Balboa Control Systems include:
- BP Series (BP2100, BP5100, BP6013, and others)
- VS Series control systems
- GS Series control systems
- EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
- 54122
- 54123
- 54124
- 54355
- 54356
- 58015
- 58024
- PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
- Pressure/Flow Switch – Ensures the heater only activates when water is flowing
- High-Limit Sensor – Protects the heater from overheating
- Thermostat/Temperature Sensor – Regulates water temperature
- Heater Unions and O-Rings – For a watertight seal during installation
- Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
- U – United States
- C – Canada
- E – Europe
- A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.
![Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12" L x 3.5" W x 4" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4526/6791/heater_assembly26__56374.1786653889.PNG?c=2 "Get Your Hot Tub Heating Again Fast
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is a premium, brand-new replacement part designed to restore your hot tub or spa to full working order — quickly and reliably. Shop and order at Western Tub and Pool.
[Shop Now or Call 1-855-248-0777]
Why Choose the Balboa VS100 4.0kW Flo-Thru Heater Assembly?
Brand New, Ready to Install
This is a genuine, new Balboa VS100 heater assembly — not refurbished, not remanufactured. You get full performance from day one.
Fits a Wide Range of Models
The Balboa VS100 is one of the most widely used heater assemblies in the hot tub industry, making it a reliable solution for many popular brands and systems.
Trusted OEM Quality
Balboa is a globally recognized leader in spa and hot tub components. Their heater assemblies are built to last, ensuring consistent heat output and long-term durability.
Expert Support When You Need It
Not sure if this is the right part for your tub? Our team at Western Tub and Pool is here to help you find exactly what you need — fast.
Product Specifications
Specification
Details
Brand
Balboa Water Group
Model
VS100 Flo-Thru Heater Assembly
Heating Output
4.0kW
Type
Flo-Thru (inline heater)
Condition
New
Voltage
240V (standard)
Heater Tube Material
Stainless steel
Typical Dimensions
Approx. 12\" L x 3.5\" W x 4\" H (confirm with our team for your specific unit)
Approximate Weight
Approx. 2–3 lbs (may vary by configuration)
Need exact measurements for your installation? Call us at 1-855-248-0777 or email fixmytub@gmail.com and we'll confirm the specs for your specific model.
Compatible Hot Tub Brands and Models
The Balboa VS100 4.0kW Flo-Thru Heater Assembly is used across a wide variety of hot tub brands and models, including but not limited to:
Sundance Spas
Jacuzzi (select models)
Cal Spas
LA Spas
Marquis Spas
Master Spas
Gatsby Spas
Dimension One Spas
Strong Spas
PDC Spas
Artesian Spas
many more Balboa-controlled systems
Compatible Balboa Control Systems include:
BP Series (BP2100, BP5100, BP6013, and others)
VS Series control systems
GS Series control systems
EL Series control systems
Not sure if your spa is compatible? Send us your make, model, and serial number at fixmytub@gmail.com and we'll confirm before you order.
Common Cross-Reference Part Numbers
The Balboa VS100 Flo-Thru Heater Assembly may also be listed under the following part numbers depending on the manufacturer or retailer:
54122
54123
54124
54355
54356
58015
58024
PN54122, PN54355 (and related variants)
Cross-reference numbers vary by configuration and voltage. Contact us to verify the correct match for your system.
Related Replacement Parts
When replacing your heater assembly, you may also need the following components:
Pressure/Flow Switch – Ensures the heater only activates when water is flowing
High-Limit Sensor – Protects the heater from overheating
Thermostat/Temperature Sensor – Regulates water temperature
Heater Unions and O-Rings – For a watertight seal during installation
Control Board (PCB) – If your heater failure has caused or been caused by board damage
Browse our full catalogue online or call 1-855-248-0777 to find these associated parts.
Frequently Asked Questions
How do I know if the Balboa VS100 is the right heater for my hot tub?
The easiest way to confirm compatibility is to check your existing heater's part number (usually found on a label on the heater itself) or your spa's control panel model number. You can also send us a photo of your current heater, along with your spa's make, model, and serial number, to fixmytub@gmail.com and our team will help you identify the correct replacement.
Is this a genuine Balboa product?
Yes. Western Tub and Pool supplies genuine Balboa Water Group components. The VS100 Flo-Thru Heater Assembly is a brand-new unit — not reconditioned or remanufactured.
What does the suffix on my part number mean?
Western Tub and Pool is an international e-retailer that ships from warehouses across multiple regions. To help you identify the origin of your part, we've added regional suffixes to our part numbers:
U – United States
C – Canada
E – Europe
A – Asia
Some parts may be available from multiple regional warehouses. The suffix does not affect compatibility — only the shipping origin.
Will shipping times be affected by my location?
Yes, potentially. Because we ship from warehouses in different regions, delivery times may vary depending on which warehouse fulfills your order. If you have specific shipping requirements, contact us before ordering and we'll do our best to accommodate you.
Can you help me find a part if I don't know the part number?
Absolutely. If you're unsure of your part number, send us an email at fixmytub@gmail.com with photos of the part, along with your spa's make, model, and serial number. Our team specializes in hard-to-find parts and will do everything we can to help.
Ready to Get Your Spa Back Up and Running?
Don't let a faulty heater keep you out of your hot tub. The Balboa VS100 4.0kW Flo-Thru Heater Assembly is in stock and ready to ship.
Shop and order at Western Tub and Pool.
[Shop Now] [Browse the Full Catalogue]
Call us: 1-855-248-0777
Email us: fixmytub@gmail.com
Need help tracking down a hard-to-find part? Email us at fixmytub@gmail.com with your part number (if known), photos, and your spa's make, model, and serial number — and we'll take it from there.")
![BP100 4.0kW Flo-Thru Heater Assembly (G4310) – Genuine Balboa Replacement Part
Keep your spa running at peak performance with the BP100 4.0kW Flo-Thru Heater Assembly (G4310). Designed specifically for Balboa BP100 spa paks, this genuine replacement heater ensures reliable heating and extended equipment life.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] | [Email: fixmytub@gmail.com]
Why choose this heater assembly?
Genuine Balboa quality
Engineered by Balboa, a trusted leader in spa technology, this heater assembly meets OEM specifications for dependable performance and long-lasting durability.
Perfect fit for BP100 systems
The G4310 heater is designed to work seamlessly with Balboa BP100 spa paks, ensuring hassle-free installation and optimal compatibility.
Reliable 4.0kW heating power
Enjoy consistent, efficient heating that keeps your hot tub at the perfect temperature, even during heavy use.
Easy replacement process
This flo-thru heater assembly is engineered for straightforward installation, minimizing downtime and getting your spa back up and running quickly.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Voltage: 240V
Dimensions: 15" L x 2.5" W x 4" H (approximately)
Weight: 3.5 lbs
Compatible System: Balboa BP100 Spa Pak
Compatible hot tub models and controls
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with many popular hot tub brands and models that utilize the Balboa BP100 control system, including:
Compatible Controls:
Balboa BP100 Series
Balboa M7 Technology Systems
Hot Tub Brands Using BP100 Systems:
Jacuzzi (select models)
Sundance Spas (select models)
Caldera Spas (select models)
Hot Spring Spas (select models)
Marquis Spas (select models)
Nordic Hot Tubs (select models)
Dynasty Spas (select models)
Coast Spas (select models)
Beachcomber Hot Tubs (select models)
spa berry hot tubs ( select models )
Strong spa ( select models )
And many other manufacturers using Balboa bp100 controls
Not sure if this heater fits your spa? Check our online catalogue or call us at 1-855-248-0777 for assistance.
Hard-to-find part assistance
Can't locate the exact part you need? We're here to help. Send us an email at fixmytub@gmail.com with:
Your part number (if known)
Photos of your current heater or control panel
Make and model of your hot tub
Serial number (if available)
Our experienced team will identify the correct replacement part and provide expert guidance to get your spa repaired quickly.
Frequently asked questions
How do I know if this heater is compatible with my spa?
Check your spa's control system model number (typically found on the control box or in your owner's manual). If you have a Balboa BP100 spa pak, this G4310 heater is the correct replacement. Still unsure? Contact us at 1-855-248-0777, and we'll verify compatibility for you.
What's the difference between a flo-thru heater and other heater types?
Flo-thru heaters allow water to flow directly through the heating element, providing efficient and consistent heat transfer. This design is standard in most modern spa systems and ensures reliable performance.
How difficult is it to replace this heater assembly?
If you're comfortable working with basic plumbing and electrical connections, replacing this heater is straightforward. However, we always recommend consulting a qualified spa technician if you're unfamiliar with spa equipment repairs.
Does this heater come with a warranty?
Yes, this genuine Balboa heater assembly comes with a manufacturer's warranty. Contact us for specific warranty details and terms.
Can I order this part online?
Absolutely! Visit our online catalogue at Western Tub and Pool to browse our full selection of spa parts and place your order. You can also call us directly at 1-855-248-0777 for phone orders.
What if I need other replacement parts for my spa?
Western Tub and Pool carries a comprehensive inventory of hot tub and spa parts, including pumps, controls, jets, filters, and more. Browse our online catalogue or contact us for assistance finding the parts you need.
Get your replacement heater today
Don't let a faulty heater keep you out of your spa. Order the BP100 4.0kW Flo-Thru Heater Assembly (G4310) from Western Tub and Pool and enjoy fast shipping, expert support, and genuine Balboa quality.
Shop and order at Western Tub and Pool
Call: 1-855-248-0777
Email: fixmytub@gmail.com
[Order now from our online catalogue]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4131/6155/Bp100_Heater_Assembly_Balboa_Heater_4.0kW_at_Western_Tub_and_Pool___53220.1771784143.png?c=2 "BP100 4.0kW Flo-Thru Heater Assembly (G4310) – Genuine Balboa Replacement Part
Keep your spa running at peak performance with the BP100 4.0kW Flo-Thru Heater Assembly (G4310). Designed specifically for Balboa BP100 spa paks, this genuine replacement heater ensures reliable heating and extended equipment life.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] | [Email: fixmytub@gmail.com]
Why choose this heater assembly?
Genuine Balboa quality
Engineered by Balboa, a trusted leader in spa technology, this heater assembly meets OEM specifications for dependable performance and long-lasting durability.
Perfect fit for BP100 systems
The G4310 heater is designed to work seamlessly with Balboa BP100 spa paks, ensuring hassle-free installation and optimal compatibility.
Reliable 4.0kW heating power
Enjoy consistent, efficient heating that keeps your hot tub at the perfect temperature, even during heavy use.
Easy replacement process
This flo-thru heater assembly is engineered for straightforward installation, minimizing downtime and getting your spa back up and running quickly.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Voltage: 240V
Dimensions: 15\" L x 2.5\" W x 4\" H (approximately)
Weight: 3.5 lbs
Compatible System: Balboa BP100 Spa Pak
Compatible hot tub models and controls
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with many popular hot tub brands and models that utilize the Balboa BP100 control system, including:
Compatible Controls:
Balboa BP100 Series
Balboa M7 Technology Systems
Hot Tub Brands Using BP100 Systems:
Jacuzzi (select models)
Sundance Spas (select models)
Caldera Spas (select models)
Hot Spring Spas (select models)
Marquis Spas (select models)
Nordic Hot Tubs (select models)
Dynasty Spas (select models)
Coast Spas (select models)
Beachcomber Hot Tubs (select models)
spa berry hot tubs ( select models )
Strong spa ( select models )
And many other manufacturers using Balboa bp100 controls
Not sure if this heater fits your spa? Check our online catalogue or call us at 1-855-248-0777 for assistance.
Hard-to-find part assistance
Can't locate the exact part you need? We're here to help. Send us an email at fixmytub@gmail.com with:
Your part number (if known)
Photos of your current heater or control panel
Make and model of your hot tub
Serial number (if available)
Our experienced team will identify the correct replacement part and provide expert guidance to get your spa repaired quickly.
Frequently asked questions
How do I know if this heater is compatible with my spa?
Check your spa's control system model number (typically found on the control box or in your owner's manual). If you have a Balboa BP100 spa pak, this G4310 heater is the correct replacement. Still unsure? Contact us at 1-855-248-0777, and we'll verify compatibility for you.
What's the difference between a flo-thru heater and other heater types?
Flo-thru heaters allow water to flow directly through the heating element, providing efficient and consistent heat transfer. This design is standard in most modern spa systems and ensures reliable performance.
How difficult is it to replace this heater assembly?
If you're comfortable working with basic plumbing and electrical connections, replacing this heater is straightforward. However, we always recommend consulting a qualified spa technician if you're unfamiliar with spa equipment repairs.
Does this heater come with a warranty?
Yes, this genuine Balboa heater assembly comes with a manufacturer's warranty. Contact us for specific warranty details and terms.
Can I order this part online?
Absolutely! Visit our online catalogue at Western Tub and Pool to browse our full selection of spa parts and place your order. You can also call us directly at 1-855-248-0777 for phone orders.
What if I need other replacement parts for my spa?
Western Tub and Pool carries a comprehensive inventory of hot tub and spa parts, including pumps, controls, jets, filters, and more. Browse our online catalogue or contact us for assistance finding the parts you need.
Get your replacement heater today
Don't let a faulty heater keep you out of your spa. Order the BP100 4.0kW Flo-Thru Heater Assembly (G4310) from Western Tub and Pool and enjoy fast shipping, expert support, and genuine Balboa quality.
Shop and order at Western Tub and Pool
Call: 1-855-248-0777
Email: fixmytub@gmail.com
[Order now from our online catalogue]")
![BP100 4.0kW Flo-Thru Heater Assembly (G4310) – Genuine Balboa Replacement Part
Keep your spa running at peak performance with the BP100 4.0kW Flo-Thru Heater Assembly (G4310). Designed specifically for Balboa BP100 spa paks, this genuine replacement heater ensures reliable heating and extended equipment life.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] | [Email: fixmytub@gmail.com]
Why choose this heater assembly?
Genuine Balboa quality
Engineered by Balboa, a trusted leader in spa technology, this heater assembly meets OEM specifications for dependable performance and long-lasting durability.
Perfect fit for BP100 systems
The G4310 heater is designed to work seamlessly with Balboa BP100 spa paks, ensuring hassle-free installation and optimal compatibility.
Reliable 4.0kW heating power
Enjoy consistent, efficient heating that keeps your hot tub at the perfect temperature, even during heavy use.
Easy replacement process
This flo-thru heater assembly is engineered for straightforward installation, minimizing downtime and getting your spa back up and running quickly.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Voltage: 240V
Dimensions: 15" L x 2.5" W x 4" H (approximately)
Weight: 3.5 lbs
Compatible System: Balboa BP100 Spa Pak
Compatible hot tub models and controls
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with many popular hot tub brands and models that utilize the Balboa BP100 control system, including:
Compatible Controls:
Balboa BP100 Series
Balboa M7 Technology Systems
Hot Tub Brands Using BP100 Systems:
Jacuzzi (select models)
Sundance Spas (select models)
Caldera Spas (select models)
Hot Spring Spas (select models)
Marquis Spas (select models)
Nordic Hot Tubs (select models)
Dynasty Spas (select models)
Coast Spas (select models)
Beachcomber Hot Tubs (select models)
spa berry hot tubs ( select models )
Strong spa ( select models )
And many other manufacturers using Balboa bp100 controls
Not sure if this heater fits your spa? Check our online catalogue or call us at 1-855-248-0777 for assistance.
Hard-to-find part assistance
Can't locate the exact part you need? We're here to help. Send us an email at fixmytub@gmail.com with:
Your part number (if known)
Photos of your current heater or control panel
Make and model of your hot tub
Serial number (if available)
Our experienced team will identify the correct replacement part and provide expert guidance to get your spa repaired quickly.
Frequently asked questions
How do I know if this heater is compatible with my spa?
Check your spa's control system model number (typically found on the control box or in your owner's manual). If you have a Balboa BP100 spa pak, this G4310 heater is the correct replacement. Still unsure? Contact us at 1-855-248-0777, and we'll verify compatibility for you.
What's the difference between a flo-thru heater and other heater types?
Flo-thru heaters allow water to flow directly through the heating element, providing efficient and consistent heat transfer. This design is standard in most modern spa systems and ensures reliable performance.
How difficult is it to replace this heater assembly?
If you're comfortable working with basic plumbing and electrical connections, replacing this heater is straightforward. However, we always recommend consulting a qualified spa technician if you're unfamiliar with spa equipment repairs.
Does this heater come with a warranty?
Yes, this genuine Balboa heater assembly comes with a manufacturer's warranty. Contact us for specific warranty details and terms.
Can I order this part online?
Absolutely! Visit our online catalogue at Western Tub and Pool to browse our full selection of spa parts and place your order. You can also call us directly at 1-855-248-0777 for phone orders.
What if I need other replacement parts for my spa?
Western Tub and Pool carries a comprehensive inventory of hot tub and spa parts, including pumps, controls, jets, filters, and more. Browse our online catalogue or contact us for assistance finding the parts you need.
Get your replacement heater today
Don't let a faulty heater keep you out of your spa. Order the BP100 4.0kW Flo-Thru Heater Assembly (G4310) from Western Tub and Pool and enjoy fast shipping, expert support, and genuine Balboa quality.
Shop and order at Western Tub and Pool
Call: 1-855-248-0777
Email: fixmytub@gmail.com
[Order now from our online catalogue]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4131/6156/Bp100_Heater_Assembly_Balboa_Heater_4.0kW_at_Western_Tub_and_Pool.__00834.1771784607.png?c=2 "BP100 4.0kW Flo-Thru Heater Assembly (G4310) – Genuine Balboa Replacement Part
Keep your spa running at peak performance with the BP100 4.0kW Flo-Thru Heater Assembly (G4310). Designed specifically for Balboa BP100 spa paks, this genuine replacement heater ensures reliable heating and extended equipment life.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] | [Email: fixmytub@gmail.com]
Why choose this heater assembly?
Genuine Balboa quality
Engineered by Balboa, a trusted leader in spa technology, this heater assembly meets OEM specifications for dependable performance and long-lasting durability.
Perfect fit for BP100 systems
The G4310 heater is designed to work seamlessly with Balboa BP100 spa paks, ensuring hassle-free installation and optimal compatibility.
Reliable 4.0kW heating power
Enjoy consistent, efficient heating that keeps your hot tub at the perfect temperature, even during heavy use.
Easy replacement process
This flo-thru heater assembly is engineered for straightforward installation, minimizing downtime and getting your spa back up and running quickly.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Voltage: 240V
Dimensions: 15\" L x 2.5\" W x 4\" H (approximately)
Weight: 3.5 lbs
Compatible System: Balboa BP100 Spa Pak
Compatible hot tub models and controls
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with many popular hot tub brands and models that utilize the Balboa BP100 control system, including:
Compatible Controls:
Balboa BP100 Series
Balboa M7 Technology Systems
Hot Tub Brands Using BP100 Systems:
Jacuzzi (select models)
Sundance Spas (select models)
Caldera Spas (select models)
Hot Spring Spas (select models)
Marquis Spas (select models)
Nordic Hot Tubs (select models)
Dynasty Spas (select models)
Coast Spas (select models)
Beachcomber Hot Tubs (select models)
spa berry hot tubs ( select models )
Strong spa ( select models )
And many other manufacturers using Balboa bp100 controls
Not sure if this heater fits your spa? Check our online catalogue or call us at 1-855-248-0777 for assistance.
Hard-to-find part assistance
Can't locate the exact part you need? We're here to help. Send us an email at fixmytub@gmail.com with:
Your part number (if known)
Photos of your current heater or control panel
Make and model of your hot tub
Serial number (if available)
Our experienced team will identify the correct replacement part and provide expert guidance to get your spa repaired quickly.
Frequently asked questions
How do I know if this heater is compatible with my spa?
Check your spa's control system model number (typically found on the control box or in your owner's manual). If you have a Balboa BP100 spa pak, this G4310 heater is the correct replacement. Still unsure? Contact us at 1-855-248-0777, and we'll verify compatibility for you.
What's the difference between a flo-thru heater and other heater types?
Flo-thru heaters allow water to flow directly through the heating element, providing efficient and consistent heat transfer. This design is standard in most modern spa systems and ensures reliable performance.
How difficult is it to replace this heater assembly?
If you're comfortable working with basic plumbing and electrical connections, replacing this heater is straightforward. However, we always recommend consulting a qualified spa technician if you're unfamiliar with spa equipment repairs.
Does this heater come with a warranty?
Yes, this genuine Balboa heater assembly comes with a manufacturer's warranty. Contact us for specific warranty details and terms.
Can I order this part online?
Absolutely! Visit our online catalogue at Western Tub and Pool to browse our full selection of spa parts and place your order. You can also call us directly at 1-855-248-0777 for phone orders.
What if I need other replacement parts for my spa?
Western Tub and Pool carries a comprehensive inventory of hot tub and spa parts, including pumps, controls, jets, filters, and more. Browse our online catalogue or contact us for assistance finding the parts you need.
Get your replacement heater today
Don't let a faulty heater keep you out of your spa. Order the BP100 4.0kW Flo-Thru Heater Assembly (G4310) from Western Tub and Pool and enjoy fast shipping, expert support, and genuine Balboa quality.
Shop and order at Western Tub and Pool
Call: 1-855-248-0777
Email: fixmytub@gmail.com
[Order now from our online catalogue]")
![BP100 4.0kW Flo-Thru Heater Assembly (G4310) | Balboa Spa Pak Replacement
Get your hot tub running again with our professionally rebuilt BP100 4.0kW Flo-Thru Heater Assembly. Perfect for Balboa spa paks, this hard-to-find replacement part is expertly refurbished to deliver reliable performance and extend the life of your spa.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] [Email: fixmytub@gmail.com]
Why choose our rebuilt BP100 heater assembly?
Professionally rebuilt for reliability
Each heater assembly is carefully inspected, tested, and rebuilt to meet original manufacturer specifications, ensuring dependable performance for years to come.
Cost-effective solution
Save significantly compared to buying new while getting the same quality and performance. Our rebuilt units offer exceptional value without compromising on reliability.
Expert support and guidance
Not sure if this is the right part? Our knowledgeable team is here to help. Send us your part number, photos, or hot tub make, model, and serial number—we'll confirm compatibility and get you the right replacement.
Fast shipping and availability
We stock hard-to-find spa parts so you can get your hot tub back up and running quickly. No more waiting weeks for special orders.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Application: Balboa BP100 Spa Pak Systems
Condition: Professionally Rebuilt
Warranty: Contact us for warranty details
Dimensions and Weight:
Contact us at 1-855-248-0777 for complete specifications and technical details.
Compatible hot tub models and control systems
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with numerous hot tub brands and Balboa control systems, including:
Compatible control systems:
Balboa BP100 Series
Various Balboa digital control panels
Legacy spa control systems
Popular hot tub brands using this heater:
Cal Spas
Hot Spring Spas (select models)
Sundance Spas (select models)
Jacuzzi (select models)
Dynasty Spas
Master Spas
And many more
Not sure if this fits your hot tub? Check your existing part number or browse our online catalog. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number for confirmation.
Need help finding the right part?
We specialize in hard-to-find hot tub and spa replacement parts. If you're unsure about compatibility or need assistance identifying the correct component:
Check your part number - Look for the existing part number on your current heater assembly
Send us photos - Email clear pictures of your current part to fixmytub@gmail.com
Provide details - Include your hot tub's make, model, and serial number (usually found on the equipment panel or spa skirt)
Our experienced technicians will review your information and confirm the right replacement part for your specific spa system.
Frequently asked questions
How do I know if this heater assembly will fit my hot tub?
The best way to confirm compatibility is to check your existing part number (G4310) or contact us with your hot tub's make, model, and serial number. Our team will verify fitment before you order.
What does "rebuilt" mean?
Our rebuilt heater assemblies are professionally refurbished units that have been disassembled, inspected, cleaned, and tested to meet original performance standards. All worn components are replaced, ensuring reliable operation.
Do you offer installation support?
While we don't provide on-site installation, our knowledgeable team can guide you through the replacement process or recommend qualified spa technicians in your area.
What if I'm not sure this is the part I need?
No problem! Send us an email at fixmytub@gmail.com with photos of your current heater, your spa's make and model, and serial number. We'll help you identify the correct replacement part.
How quickly can I get this part?
We maintain inventory of hard-to-find spa parts for faster shipping. Contact us at 1-855-248-0777 to check current availability and shipping options.
Can I order other spa parts from you?
Absolutely! Check our online catalog for a wide selection of hot tub and spa replacement parts, or contact us directly for assistance finding any component you need.
Get your spa running again today
Don't let a faulty heater keep you out of your hot tub. Our rebuilt BP100 4.0kW Flo-Thru Heater Assembly delivers reliable performance at a fraction of the cost of buying new.
Shop and order at Western Tub and Pool
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Our expert team is ready to help you find the right parts and get your spa back to perfect working order.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4132/6159/Bp100_rebuilt_heater_assembly_4kw_at_western_tub_and_pool__87909.1771786537.png?c=2 "BP100 4.0kW Flo-Thru Heater Assembly (G4310) | Balboa Spa Pak Replacement
Get your hot tub running again with our professionally rebuilt BP100 4.0kW Flo-Thru Heater Assembly. Perfect for Balboa spa paks, this hard-to-find replacement part is expertly refurbished to deliver reliable performance and extend the life of your spa.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] [Email: fixmytub@gmail.com]
Why choose our rebuilt BP100 heater assembly?
Professionally rebuilt for reliability
Each heater assembly is carefully inspected, tested, and rebuilt to meet original manufacturer specifications, ensuring dependable performance for years to come.
Cost-effective solution
Save significantly compared to buying new while getting the same quality and performance. Our rebuilt units offer exceptional value without compromising on reliability.
Expert support and guidance
Not sure if this is the right part? Our knowledgeable team is here to help. Send us your part number, photos, or hot tub make, model, and serial number—we'll confirm compatibility and get you the right replacement.
Fast shipping and availability
We stock hard-to-find spa parts so you can get your hot tub back up and running quickly. No more waiting weeks for special orders.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Application: Balboa BP100 Spa Pak Systems
Condition: Professionally Rebuilt
Warranty: Contact us for warranty details
Dimensions and Weight:
Contact us at 1-855-248-0777 for complete specifications and technical details.
Compatible hot tub models and control systems
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with numerous hot tub brands and Balboa control systems, including:
Compatible control systems:
Balboa BP100 Series
Various Balboa digital control panels
Legacy spa control systems
Popular hot tub brands using this heater:
Cal Spas
Hot Spring Spas (select models)
Sundance Spas (select models)
Jacuzzi (select models)
Dynasty Spas
Master Spas
And many more
Not sure if this fits your hot tub? Check your existing part number or browse our online catalog. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number for confirmation.
Need help finding the right part?
We specialize in hard-to-find hot tub and spa replacement parts. If you're unsure about compatibility or need assistance identifying the correct component:
Check your part number - Look for the existing part number on your current heater assembly
Send us photos - Email clear pictures of your current part to fixmytub@gmail.com
Provide details - Include your hot tub's make, model, and serial number (usually found on the equipment panel or spa skirt)
Our experienced technicians will review your information and confirm the right replacement part for your specific spa system.
Frequently asked questions
How do I know if this heater assembly will fit my hot tub?
The best way to confirm compatibility is to check your existing part number (G4310) or contact us with your hot tub's make, model, and serial number. Our team will verify fitment before you order.
What does \"rebuilt\" mean?
Our rebuilt heater assemblies are professionally refurbished units that have been disassembled, inspected, cleaned, and tested to meet original performance standards. All worn components are replaced, ensuring reliable operation.
Do you offer installation support?
While we don't provide on-site installation, our knowledgeable team can guide you through the replacement process or recommend qualified spa technicians in your area.
What if I'm not sure this is the part I need?
No problem! Send us an email at fixmytub@gmail.com with photos of your current heater, your spa's make and model, and serial number. We'll help you identify the correct replacement part.
How quickly can I get this part?
We maintain inventory of hard-to-find spa parts for faster shipping. Contact us at 1-855-248-0777 to check current availability and shipping options.
Can I order other spa parts from you?
Absolutely! Check our online catalog for a wide selection of hot tub and spa replacement parts, or contact us directly for assistance finding any component you need.
Get your spa running again today
Don't let a faulty heater keep you out of your hot tub. Our rebuilt BP100 4.0kW Flo-Thru Heater Assembly delivers reliable performance at a fraction of the cost of buying new.
Shop and order at Western Tub and Pool
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Our expert team is ready to help you find the right parts and get your spa back to perfect working order.")
![BP100 4.0kW Flo-Thru Heater Assembly (G4310) | Balboa Spa Pak Replacement
Get your hot tub running again with our professionally rebuilt BP100 4.0kW Flo-Thru Heater Assembly. Perfect for Balboa spa paks, this hard-to-find replacement part is expertly refurbished to deliver reliable performance and extend the life of your spa.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] [Email: fixmytub@gmail.com]
Why choose our rebuilt BP100 heater assembly?
Professionally rebuilt for reliability
Each heater assembly is carefully inspected, tested, and rebuilt to meet original manufacturer specifications, ensuring dependable performance for years to come.
Cost-effective solution
Save significantly compared to buying new while getting the same quality and performance. Our rebuilt units offer exceptional value without compromising on reliability.
Expert support and guidance
Not sure if this is the right part? Our knowledgeable team is here to help. Send us your part number, photos, or hot tub make, model, and serial number—we'll confirm compatibility and get you the right replacement.
Fast shipping and availability
We stock hard-to-find spa parts so you can get your hot tub back up and running quickly. No more waiting weeks for special orders.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Application: Balboa BP100 Spa Pak Systems
Condition: Professionally Rebuilt
Warranty: Contact us for warranty details
Dimensions and Weight:
Contact us at 1-855-248-0777 for complete specifications and technical details.
Compatible hot tub models and control systems
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with numerous hot tub brands and Balboa control systems, including:
Compatible control systems:
Balboa BP100 Series
Various Balboa digital control panels
Legacy spa control systems
Popular hot tub brands using this heater:
Cal Spas
Hot Spring Spas (select models)
Sundance Spas (select models)
Jacuzzi (select models)
Dynasty Spas
Master Spas
And many more
Not sure if this fits your hot tub? Check your existing part number or browse our online catalog. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number for confirmation.
Need help finding the right part?
We specialize in hard-to-find hot tub and spa replacement parts. If you're unsure about compatibility or need assistance identifying the correct component:
Check your part number - Look for the existing part number on your current heater assembly
Send us photos - Email clear pictures of your current part to fixmytub@gmail.com
Provide details - Include your hot tub's make, model, and serial number (usually found on the equipment panel or spa skirt)
Our experienced technicians will review your information and confirm the right replacement part for your specific spa system.
Frequently asked questions
How do I know if this heater assembly will fit my hot tub?
The best way to confirm compatibility is to check your existing part number (G4310) or contact us with your hot tub's make, model, and serial number. Our team will verify fitment before you order.
What does "rebuilt" mean?
Our rebuilt heater assemblies are professionally refurbished units that have been disassembled, inspected, cleaned, and tested to meet original performance standards. All worn components are replaced, ensuring reliable operation.
Do you offer installation support?
While we don't provide on-site installation, our knowledgeable team can guide you through the replacement process or recommend qualified spa technicians in your area.
What if I'm not sure this is the part I need?
No problem! Send us an email at fixmytub@gmail.com with photos of your current heater, your spa's make and model, and serial number. We'll help you identify the correct replacement part.
How quickly can I get this part?
We maintain inventory of hard-to-find spa parts for faster shipping. Contact us at 1-855-248-0777 to check current availability and shipping options.
Can I order other spa parts from you?
Absolutely! Check our online catalog for a wide selection of hot tub and spa replacement parts, or contact us directly for assistance finding any component you need.
Get your spa running again today
Don't let a faulty heater keep you out of your hot tub. Our rebuilt BP100 4.0kW Flo-Thru Heater Assembly delivers reliable performance at a fraction of the cost of buying new.
Shop and order at Western Tub and Pool
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Our expert team is ready to help you find the right parts and get your spa back to perfect working order.](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4132/6160/Bp100_rebuilt_heater_assembly_4kw_at_western_tub_and_pool..__22377.1771786539.png?c=2 "BP100 4.0kW Flo-Thru Heater Assembly (G4310) | Balboa Spa Pak Replacement
Get your hot tub running again with our professionally rebuilt BP100 4.0kW Flo-Thru Heater Assembly. Perfect for Balboa spa paks, this hard-to-find replacement part is expertly refurbished to deliver reliable performance and extend the life of your spa.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] [Email: fixmytub@gmail.com]
Why choose our rebuilt BP100 heater assembly?
Professionally rebuilt for reliability
Each heater assembly is carefully inspected, tested, and rebuilt to meet original manufacturer specifications, ensuring dependable performance for years to come.
Cost-effective solution
Save significantly compared to buying new while getting the same quality and performance. Our rebuilt units offer exceptional value without compromising on reliability.
Expert support and guidance
Not sure if this is the right part? Our knowledgeable team is here to help. Send us your part number, photos, or hot tub make, model, and serial number—we'll confirm compatibility and get you the right replacement.
Fast shipping and availability
We stock hard-to-find spa parts so you can get your hot tub back up and running quickly. No more waiting weeks for special orders.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Application: Balboa BP100 Spa Pak Systems
Condition: Professionally Rebuilt
Warranty: Contact us for warranty details
Dimensions and Weight:
Contact us at 1-855-248-0777 for complete specifications and technical details.
Compatible hot tub models and control systems
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with numerous hot tub brands and Balboa control systems, including:
Compatible control systems:
Balboa BP100 Series
Various Balboa digital control panels
Legacy spa control systems
Popular hot tub brands using this heater:
Cal Spas
Hot Spring Spas (select models)
Sundance Spas (select models)
Jacuzzi (select models)
Dynasty Spas
Master Spas
And many more
Not sure if this fits your hot tub? Check your existing part number or browse our online catalog. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number for confirmation.
Need help finding the right part?
We specialize in hard-to-find hot tub and spa replacement parts. If you're unsure about compatibility or need assistance identifying the correct component:
Check your part number - Look for the existing part number on your current heater assembly
Send us photos - Email clear pictures of your current part to fixmytub@gmail.com
Provide details - Include your hot tub's make, model, and serial number (usually found on the equipment panel or spa skirt)
Our experienced technicians will review your information and confirm the right replacement part for your specific spa system.
Frequently asked questions
How do I know if this heater assembly will fit my hot tub?
The best way to confirm compatibility is to check your existing part number (G4310) or contact us with your hot tub's make, model, and serial number. Our team will verify fitment before you order.
What does \"rebuilt\" mean?
Our rebuilt heater assemblies are professionally refurbished units that have been disassembled, inspected, cleaned, and tested to meet original performance standards. All worn components are replaced, ensuring reliable operation.
Do you offer installation support?
While we don't provide on-site installation, our knowledgeable team can guide you through the replacement process or recommend qualified spa technicians in your area.
What if I'm not sure this is the part I need?
No problem! Send us an email at fixmytub@gmail.com with photos of your current heater, your spa's make and model, and serial number. We'll help you identify the correct replacement part.
How quickly can I get this part?
We maintain inventory of hard-to-find spa parts for faster shipping. Contact us at 1-855-248-0777 to check current availability and shipping options.
Can I order other spa parts from you?
Absolutely! Check our online catalog for a wide selection of hot tub and spa replacement parts, or contact us directly for assistance finding any component you need.
Get your spa running again today
Don't let a faulty heater keep you out of your hot tub. Our rebuilt BP100 4.0kW Flo-Thru Heater Assembly delivers reliable performance at a fraction of the cost of buying new.
Shop and order at Western Tub and Pool
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Our expert team is ready to help you find the right parts and get your spa back to perfect working order.")
![Restore Your Hot Tub's Heat with the Gecko S-Class 4.0kW Heater
Your hot tub shouldn't sit cold. The Gecko S-Class 4.0kW Flo-Thru Heater Assembly (26-0800-5S-KPU) is a reliable, direct-replacement heating solution designed to get your spa back up and running — fast.
Shop and order at Western Tub and Pool.
[Browse Our Parts Catalogue] | [Call Us: 1-855-248-0777]
Why the Gecko S-Class 4.0kW Heater Assembly?
Powerful, Consistent Heating
Delivers 4.0kW of steady, efficient heat output, ensuring your spa reaches and maintains your desired temperature without overworking your system.
Direct Drop-In Replacement
Engineered as a true flo-thru heater assembly, this unit is designed to replace worn or failed heaters with minimal hassle — no modifications required for compatible systems.
Durable Construction
Built to Gecko's high manufacturing standards, the S-Class heater assembly is designed for long-term reliability in residential and commercial spa environments.
Broad Compatibility
This heater is used across a wide range of hot tub brands and models, making it one of the most versatile replacement spa heaters on the market.
Product Specifications
Specification
Detail
Part Number
26-0800-5S-KP
Power Output
4.0kW
Heater Type
Flo-Thru Assembly
Voltage
240V
Series
Gecko S-Class
Application
Hot Tub / Spa Heater Replacement
Note on Dimensions and Weight: Dimensions and shipping weight may vary slightly depending on regional warehouse stock. Contact us at 1-855-248-0777 or fixmytub@gmail.com for exact specifications before ordering.
Compatible Hot Tub Brands and Models
The Gecko S-Class 4.0kW Flo-Thru Heater Assembly is used across many popular spa brands, including models manufactured by:
Beachcomber Hot Tubs
Jacuzzi / Sundance Spas (select models)
Nordic Hot Tubs
Hydropool
Maax Spas
Vita Spas
Softub
Marquis Spas
Coast Spas
ClearWater Spas
And many other brands using Gecko IN.XE, IN.YE, IN.XM, IN.YM, SSPA, and S-Class control systems
Not sure if this part fits your hot tub? Send us your make, model, and serial number at fixmytub@gmail.com and our team will confirm compatibility before you order.
Compatible Gecko Control Systems
This heater assembly is compatible with the following Gecko controls (among others):
Gecko IN.XE Series
Gecko IN.YE Series
Gecko IN.XM Series
Gecko IN.YM Series
Gecko SSPA Series
Gecko S-Class Pack Systems
Cross-Reference Part Numbers
If you're searching by an alternate part number, the Gecko S-Class 4.0kW Heater Assembly may also be referenced as:
26-0800-5S-KP
0800-221057
XE/YE Series Heater 4.0kW
S-Class Heater 4.0kW 240V
Tip: If you have a part number from your existing heater, check it against our catalogue or call us — we'll match it for you.
Related Replacement Parts
When replacing your spa heater, you may also need:
Heater Unions and Fittings — Ensure a watertight connection
Pressure Switches — Often replaced alongside heater assemblies
Thermistors / Temperature Sensors — Commonly worn with aging heater units
Circuit Boards / Control Packs — If your system has additional faults
O-Rings and Seals — Prevent leaks around heater connections
Browse our full range of compatible spa repair parts in our online catalogue, or call 1-855-248-0777 for bundle recommendations.
Frequently Asked Questions
How do I know if this heater will fit my hot tub?
The best way to confirm compatibility is to check your existing heater's part number or your spa's control system model. You can also send us your hot tub's make, model, and serial number — along with photos if possible — to fixmytub@gmail.com and we'll verify the fit before you order.
What does "Flo-Thru" mean?
A flo-thru heater is a type of spa heater where water flows directly through the heater tube to be warmed. This design is common in most modern hot tubs and is highly efficient for maintaining water temperature.
Can I install this heater myself?
Many experienced DIY spa owners successfully replace their own heater assemblies. However, if you're unsure, we recommend consulting a qualified spa technician. Our team is also happy to walk you through the process — give us a call at 1-855-248-0777.
Why does my replacement part have a letter suffix (U, C, E, or A)?
Western Tub and Pool is an international e-tailer with warehouses across multiple regions. To help identify the part's origin, we add a suffix to the part number:
U = United States
C = Canada
E = Europe
A = Asia
The same part may be stocked in multiple regional warehouses. Rest assured, all versions meet the same product specifications — the suffix simply reflects where the part was sourced and may affect shipping origin and delivery times.
What if I'm not sure which part I need?
No problem. Send us an email at fixmytub@gmail.com with your hot tub's make, model, serial number, and photos of the faulty part. Our team specializes in hard-to-find spa parts and will do our best to identify exactly what you need.
Can't Find the Part You're Looking For?
We specialize in hard-to-find hot tub and spa repair parts. If it's not in our catalogue, chances are we can still source it for you.
Send us an email:fixmytub@gmail.com
Call us: 1-855-248-0777
Include: Photos, make and model of your hot tub, serial number, and any part numbers you have on hand.
Order the Gecko S-Class 4.0kW Heater Today
Don't let a broken heater keep you out of your hot tub. Shop and order at Western Tub and Pool — your trusted source for genuine spa replacement parts, shipped from regional warehouses across North America, Europe, and beyond.
[Shop Our Full Parts Catalogue] | [Call 1-855-248-0777] | [Email fixmytub@gmail.com]](https://cdn11.bigcommerce.com/s-b7yzllubsu/images/stencil/500x659/products/4503/6765/Gecko_S-class_4kw_flo-thru_heater__34313.1786228340.png?c=2 "Restore Your Hot Tub's Heat with the Gecko S-Class 4.0kW Heater
Your hot tub shouldn't sit cold. The Gecko S-Class 4.0kW Flo-Thru Heater Assembly (26-0800-5S-KPU) is a reliable, direct-replacement heating solution designed to get your spa back up and running — fast.
Shop and order at Western Tub and Pool.
[Browse Our Parts Catalogue] | [Call Us: 1-855-248-0777]
Why the Gecko S-Class 4.0kW Heater Assembly?
Powerful, Consistent Heating
Delivers 4.0kW of steady, efficient heat output, ensuring your spa reaches and maintains your desired temperature without overworking your system.
Direct Drop-In Replacement
Engineered as a true flo-thru heater assembly, this unit is designed to replace worn or failed heaters with minimal hassle — no modifications required for compatible systems.
Durable Construction
Built to Gecko's high manufacturing standards, the S-Class heater assembly is designed for long-term reliability in residential and commercial spa environments.
Broad Compatibility
This heater is used across a wide range of hot tub brands and models, making it one of the most versatile replacement spa heaters on the market.
Product Specifications
Specification
Detail
Part Number
26-0800-5S-KP
Power Output
4.0kW
Heater Type
Flo-Thru Assembly
Voltage
240V
Series
Gecko S-Class
Application
Hot Tub / Spa Heater Replacement
Note on Dimensions and Weight: Dimensions and shipping weight may vary slightly depending on regional warehouse stock. Contact us at 1-855-248-0777 or fixmytub@gmail.com for exact specifications before ordering.
Compatible Hot Tub Brands and Models
The Gecko S-Class 4.0kW Flo-Thru Heater Assembly is used across many popular spa brands, including models manufactured by:
Beachcomber Hot Tubs
Jacuzzi / Sundance Spas (select models)
Nordic Hot Tubs
Hydropool
Maax Spas
Vita Spas
Softub
Marquis Spas
Coast Spas
ClearWater Spas
And many other brands using Gecko IN.XE, IN.YE, IN.XM, IN.YM, SSPA, and S-Class control systems
Not sure if this part fits your hot tub? Send us your make, model, and serial number at fixmytub@gmail.com and our team will confirm compatibility before you order.
Compatible Gecko Control Systems
This heater assembly is compatible with the following Gecko controls (among others):
Gecko IN.XE Series
Gecko IN.YE Series
Gecko IN.XM Series
Gecko IN.YM Series
Gecko SSPA Series
Gecko S-Class Pack Systems
Cross-Reference Part Numbers
If you're searching by an alternate part number, the Gecko S-Class 4.0kW Heater Assembly may also be referenced as:
26-0800-5S-KP
0800-221057
XE/YE Series Heater 4.0kW
S-Class Heater 4.0kW 240V
Tip: If you have a part number from your existing heater, check it against our catalogue or call us — we'll match it for you.
Related Replacement Parts
When replacing your spa heater, you may also need:
Heater Unions and Fittings — Ensure a watertight connection
Pressure Switches — Often replaced alongside heater assemblies
Thermistors / Temperature Sensors — Commonly worn with aging heater units
Circuit Boards / Control Packs — If your system has additional faults
O-Rings and Seals — Prevent leaks around heater connections
Browse our full range of compatible spa repair parts in our online catalogue, or call 1-855-248-0777 for bundle recommendations.
Frequently Asked Questions
How do I know if this heater will fit my hot tub?
The best way to confirm compatibility is to check your existing heater's part number or your spa's control system model. You can also send us your hot tub's make, model, and serial number — along with photos if possible — to fixmytub@gmail.com and we'll verify the fit before you order.
What does \"Flo-Thru\" mean?
A flo-thru heater is a type of spa heater where water flows directly through the heater tube to be warmed. This design is common in most modern hot tubs and is highly efficient for maintaining water temperature.
Can I install this heater myself?
Many experienced DIY spa owners successfully replace their own heater assemblies. However, if you're unsure, we recommend consulting a qualified spa technician. Our team is also happy to walk you through the process — give us a call at 1-855-248-0777.
Why does my replacement part have a letter suffix (U, C, E, or A)?
Western Tub and Pool is an international e-tailer with warehouses across multiple regions. To help identify the part's origin, we add a suffix to the part number:
U = United States
C = Canada
E = Europe
A = Asia
The same part may be stocked in multiple regional warehouses. Rest assured, all versions meet the same product specifications — the suffix simply reflects where the part was sourced and may affect shipping origin and delivery times.
What if I'm not sure which part I need?
No problem. Send us an email at fixmytub@gmail.com with your hot tub's make, model, serial number, and photos of the faulty part. Our team specializes in hard-to-find spa parts and will do our best to identify exactly what you need.
Can't Find the Part You're Looking For?
We specialize in hard-to-find hot tub and spa repair parts. If it's not in our catalogue, chances are we can still source it for you.
Send us an email:fixmytub@gmail.com
Call us: 1-855-248-0777
Include: Photos, make and model of your hot tub, serial number, and any part numbers you have on hand.
Order the Gecko S-Class 4.0kW Heater Today
Don't let a broken heater keep you out of your hot tub. Shop and order at Western Tub and Pool — your trusted source for genuine spa replacement parts, shipped from regional warehouses across North America, Europe, and beyond.
[Shop Our Full Parts Catalogue] | [Call 1-855-248-0777] | [Email fixmytub@gmail.com]")