Heliatos Freeze Protected Solar Water Heater Kit
Our Freeze Protected Solar Water Heating Kit allows you to install a solar hot water system you can operate year round. This kit includes SW-38 Panels and a Stainless Steel Heat Exchanger with a special food grade heat transfer fluid (DOWFROST) to create a separate freeze protected loop. Filling your separate loop is easy with our Glycol Fill Valve. Please use our Glycol Calculator to determine the dilution ratio for winter conditions in your area as well as the total amount of glycol concentrate you need. As with all our systems they connect directly to your existing water heater and don't interfere with existing source of heat (gas or electric). This way you can enjoy hot water even during long cloudy periods.
Each panel weighs 12 lbs. and is 24" by 24" but can still provide you with ample hot water. You can begin your system with a few panels and add more if you need more. With this kit you DO NOT have to solder at all!
Specifications
Materials
- Glazing: UV resistant twin wall polycarbonate
- Frame: Architectural grade aluminum alloy 6063
- Insulation: Polyiso foam (meets requirements for ASTM-C1289, Type 1
- specification)
- Water Conduit: Copper Tubing (Alloy C12200 certified for public water supplies
- meeting EPA Lead and Copper Rule 56 FR26460, June 7th, 1991)
- Fittings: Brass, Lead Free compliant with Federal Reduction of Lead in
- Drinking Water Act , Dezincification resistant
- Seals: Butyl Rubber
Physical
- Length: 24.0 Inches
- Width: 25.25 Inches
- Height: 2.125 Inches
- Active Collector Area: 3.674 ft2
- Mounting Hole Spacing: 24.75 x 17.00 Inches x Inches
- Volume of Liquid in Collector: 7.7 fl. oz.
- Total Panel Weight: 11.6 lb.
- Input and Output Connections: 3/8 “ Compression Fitting
Maximum Ratings
- Pressure: 150 Psi
- Collector Temperature: 203 ºF
- Mounting Surface Unevenness: ¼ Inch (corner to corner)
Each Kit Comes With:
- Your selected quantity of SW-38 Panels
- 1 Grade A 25W PV panel to power the pumps - NO grid connection required - plus wire and PV mounting kit
- 1 Heliatos HS-21 Pump for the Glycol Side
- 1 TopsFlo TD5 Stainless Steel Pump for the Water Side
- 1 Heliatos Glycol Fill Valve
- 1 Heliatos Bottom Feed Connector
- 1 Compact Stainless Steel (Alloy 316) Heat Exchanger
- 1 Amtrol Expansion Tank
- 1 Complete Set of Fittings and Adapters
- DOWFROST Food Grade Propylene Glycol Heat Transfer Fluid. 2 quarts for kits 4 panels or less. 4 quarts for 5 panels or more.
- Instructions for Installation- Single Row
- Instructions for Installation- Double Row
All You Have To Supply Is:
- Your choice of 1/2" Pipe from the panels to the water heater (Copper, CPVC, or PEX)
- Fasteners to attach the panels to the roof, and the parts to feed the pipes through the roof if needed.
- Insulation for the pipes.
- Your existing Water Heater
- Tools needed for installation
This product fits any existing water heater with a "boiler drain" near the bottom. This includes almost all gas and electric powered residential units.
Please Note - Will NOT work with Marathon Non Metallic (Plastic) Water Heaters.
View and Download
SKU Numbers and Options
- 2 Panels / Single Row - 077.0073
- 3 Panels / Single Row - 077.0074
- 4 Panels / Single Row - 077.0075
- 5 Panels / Single Row - 077.0076
- 4 Panels / Double Row - 077.0083
- 6 Panels / Double Row - 077.0084
- 8 Panels / Double Row - 077.0085
- 10 Panels / Double Row - 077.0086
Order a Heliatos Freeze Protected Solar Water Heater Kit today from SolarParadise.com. Free shipping + free gifts on all of our Heliatos Solar Water Heater Kits. Buy today and get a discount, free shipping, and a free gift!
Financing
Available
Clear, transparent terms. Fair rates.
No prepayment penalties.
Pay Over Time
Through Bread Pay™, we offer easy and affordable financing options so you can pay for your purchase over time.
Affordable Monthly Plans
Buy now and pay for your purchase over time at competitive interest rates.
No Prepayment Penalties
Pay for your purchase with monthly payments and prepay at any time without penalty.
Easy Application
Get a decision in seconds with no obligation to buy. Checking your rate won't affect your credit score. Your data is safe and encrypted.
![]() |
Please allow 4-7 business days for your order to arrive. |
|
![]() |
Returns are easy, simply contact us for a returns number and send your item to our returns center for fast processing. We'll get you a replacement or refund in a snap! |
At Solar Paradise, we are dedicated to providing high-quality solar solutions to help you harness the power of the sun for a sustainable future. Here are some reasons why you should choose us as your trusted solar partner:
Expertise and Knowledge
Our team of experts has extensive knowledge and experience in the solar industry. We stay up-to-date with the latest technology and trends to offer you the best products and solutions for your solar needs. We will work with you to design a customized solar system that meets your unique requirements and budget.
Top-Quality Products
We source our products from reputable manufacturers who share our commitment to quality and sustainability. Our solar panels, inverters, and batteries are all tested and certified to ensure they meet our high standards for performance and reliability. We offer a wide range of products to suit your needs, from small portable solar generators to large-scale commercial installations.
Excellent Customer Service
At Solar Paradise, we prioritize customer satisfaction above all else. Our friendly and knowledgeable team is always available to answer your questions and provide guidance throughout the solar installation process. We will work closely with you to ensure that you are completely satisfied with your solar system and that it meets your expectations.
Competitive Pricing
We understand that solar can be a significant investment, which is why we offer competitive pricing on all of our products and services. We believe that solar should be accessible to everyone, and we work hard to keep our prices affordable without compromising on quality.
Environmental Responsibility
We are passionate about protecting the environment and reducing our carbon footprint. We believe that solar is one of the most effective ways to do this, which is why we are committed to promoting solar energy and making it accessible to everyone. When you choose Solar Paradise, you are choosing a company that shares your values and is dedicated to creating a sustainable future for generations to come.
In conclusion, at Solar Paradise, we pride ourselves on our expertise, top-quality products, excellent customer service, competitive pricing, and environmental responsibility. We are committed to providing you with the best solar solutions to help you power your life with clean, sustainable energy. Choose us as your trusted solar partner and let us help you embrace a brighter, more sustainable future.
Description
Heliatos Freeze Protected Solar Water Heater Kit
Our Freeze Protected Solar Water Heating Kit allows you to install a solar hot water system you can operate year round. This kit includes SW-38 Panels and a Stainless Steel Heat Exchanger with a special food grade heat transfer fluid (DOWFROST) to create a separate freeze protected loop. Filling your separate loop is easy with our Glycol Fill Valve. Please use our Glycol Calculator to determine the dilution ratio for winter conditions in your area as well as the total amount of glycol concentrate you need. As with all our systems they connect directly to your existing water heater and don't interfere with existing source of heat (gas or electric). This way you can enjoy hot water even during long cloudy periods.
Each panel weighs 12 lbs. and is 24" by 24" but can still provide you with ample hot water. You can begin your system with a few panels and add more if you need more. With this kit you DO NOT have to solder at all!
Specifications
Materials
- Glazing: UV resistant twin wall polycarbonate
- Frame: Architectural grade aluminum alloy 6063
- Insulation: Polyiso foam (meets requirements for ASTM-C1289, Type 1
- specification)
- Water Conduit: Copper Tubing (Alloy C12200 certified for public water supplies
- meeting EPA Lead and Copper Rule 56 FR26460, June 7th, 1991)
- Fittings: Brass, Lead Free compliant with Federal Reduction of Lead in
- Drinking Water Act , Dezincification resistant
- Seals: Butyl Rubber
Physical
- Length: 24.0 Inches
- Width: 25.25 Inches
- Height: 2.125 Inches
- Active Collector Area: 3.674 ft2
- Mounting Hole Spacing: 24.75 x 17.00 Inches x Inches
- Volume of Liquid in Collector: 7.7 fl. oz.
- Total Panel Weight: 11.6 lb.
- Input and Output Connections: 3/8 “ Compression Fitting
Maximum Ratings
- Pressure: 150 Psi
- Collector Temperature: 203 ºF
- Mounting Surface Unevenness: ¼ Inch (corner to corner)
Each Kit Comes With:
- Your selected quantity of SW-38 Panels
- 1 Grade A 25W PV panel to power the pumps - NO grid connection required - plus wire and PV mounting kit
- 1 Heliatos HS-21 Pump for the Glycol Side
- 1 TopsFlo TD5 Stainless Steel Pump for the Water Side
- 1 Heliatos Glycol Fill Valve
- 1 Heliatos Bottom Feed Connector
- 1 Compact Stainless Steel (Alloy 316) Heat Exchanger
- 1 Amtrol Expansion Tank
- 1 Complete Set of Fittings and Adapters
- DOWFROST Food Grade Propylene Glycol Heat Transfer Fluid. 2 quarts for kits 4 panels or less. 4 quarts for 5 panels or more.
- Instructions for Installation- Single Row
- Instructions for Installation- Double Row
All You Have To Supply Is:
- Your choice of 1/2" Pipe from the panels to the water heater (Copper, CPVC, or PEX)
- Fasteners to attach the panels to the roof, and the parts to feed the pipes through the roof if needed.
- Insulation for the pipes.
- Your existing Water Heater
- Tools needed for installation
This product fits any existing water heater with a "boiler drain" near the bottom. This includes almost all gas and electric powered residential units.
Please Note - Will NOT work with Marathon Non Metallic (Plastic) Water Heaters.
View and Download
SKU Numbers and Options
- 2 Panels / Single Row - 077.0073
- 3 Panels / Single Row - 077.0074
- 4 Panels / Single Row - 077.0075
- 5 Panels / Single Row - 077.0076
- 4 Panels / Double Row - 077.0083
- 6 Panels / Double Row - 077.0084
- 8 Panels / Double Row - 077.0085
- 10 Panels / Double Row - 077.0086
Order a Heliatos Freeze Protected Solar Water Heater Kit today from SolarParadise.com. Free shipping + free gifts on all of our Heliatos Solar Water Heater Kits. Buy today and get a discount, free shipping, and a free gift!
Financing
Financing
Available
Clear, transparent terms. Fair rates.
No prepayment penalties.
Pay Over Time
Through Bread Pay™, we offer easy and affordable financing options so you can pay for your purchase over time.
Affordable Monthly Plans
Buy now and pay for your purchase over time at competitive interest rates.
No Prepayment Penalties
Pay for your purchase with monthly payments and prepay at any time without penalty.
Easy Application
Get a decision in seconds with no obligation to buy. Checking your rate won't affect your credit score. Your data is safe and encrypted.
Delivery And Returns
![]() |
Please allow 4-7 business days for your order to arrive. |
|
![]() |
Returns are easy, simply contact us for a returns number and send your item to our returns center for fast processing. We'll get you a replacement or refund in a snap! |
Why Buy From Us
At Solar Paradise, we are dedicated to providing high-quality solar solutions to help you harness the power of the sun for a sustainable future. Here are some reasons why you should choose us as your trusted solar partner:
Expertise and Knowledge
Our team of experts has extensive knowledge and experience in the solar industry. We stay up-to-date with the latest technology and trends to offer you the best products and solutions for your solar needs. We will work with you to design a customized solar system that meets your unique requirements and budget.
Top-Quality Products
We source our products from reputable manufacturers who share our commitment to quality and sustainability. Our solar panels, inverters, and batteries are all tested and certified to ensure they meet our high standards for performance and reliability. We offer a wide range of products to suit your needs, from small portable solar generators to large-scale commercial installations.
Excellent Customer Service
At Solar Paradise, we prioritize customer satisfaction above all else. Our friendly and knowledgeable team is always available to answer your questions and provide guidance throughout the solar installation process. We will work closely with you to ensure that you are completely satisfied with your solar system and that it meets your expectations.
Competitive Pricing
We understand that solar can be a significant investment, which is why we offer competitive pricing on all of our products and services. We believe that solar should be accessible to everyone, and we work hard to keep our prices affordable without compromising on quality.
Environmental Responsibility
We are passionate about protecting the environment and reducing our carbon footprint. We believe that solar is one of the most effective ways to do this, which is why we are committed to promoting solar energy and making it accessible to everyone. When you choose Solar Paradise, you are choosing a company that shares your values and is dedicated to creating a sustainable future for generations to come.
In conclusion, at Solar Paradise, we pride ourselves on our expertise, top-quality products, excellent customer service, competitive pricing, and environmental responsibility. We are committed to providing you with the best solar solutions to help you power your life with clean, sustainable energy. Choose us as your trusted solar partner and let us help you embrace a brighter, more sustainable future.
100% Best Price Policy

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size

Choose Your Battery Bank Capacity | Solar Kit Size