Solar Flat Plate Collectors

Flat Plate Solar Collectors harness the power of the sun to provide energy for hydronic systems while reducing utility costs and pollution. They are coated with a selective material to enhance solar energy absorption. These collectors are placed on fiberglass insulation, encased in a weather resistant frame, and topped with glass for increased efficiency. Quality construction and smart design ensure that HTP’s Flat Plate Panels meet the highest standards for reliability, heat output, and return on investment.

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How Can Solar Thermal Help?

Solar Thermal



Solar thermal can reduce your water heating bills by 50 to 75%! It diminished harmful CO2 gasses and allows for an unlimited supply of safe, renewable energy. It is affordable, efficient, and reliable!

HTP’s solar collectors can absorb nearly 80% of the sun's energy in comparison to photovoltaic (solar electric) technology that is approaching only 20%. That is why there are so many of them in comparison. Our thermal solar collectors produce approximately 1,000 BTUs per sq. ft. per day. One SS-40-FP-U* serial solar thermal collector can produce 41,000 BTUs daily!

Solar Sense

The full sheet absorber plates offer the highest performance of absorptive coatings in the industry. While the IR reflective coating ensures low thermal emissivity, the oxidic absorption and anti-reflective coatings ensure the maximum level of solar absorption.

A Closer Look


Solar Thermal

Additional Savings

Along with the environmental and energy savings that come with purchasing our solar panels, incentives and rebates are also available! The federal government currently offers a 30% tax credit to homes and businesses that install a solar hot water system. Several state and local incentives are also available throughout the U.S.



HTP offers many sizes of our solar flat panel collectors to meet the needs of various jobs. Our collectors are available in 4’ x 10’, 4’ x 8’ and 4’ x 6.5’. Our continuous perimeter mounting channel offers the most mounting flexibility in the industry for ground mount, awning mount; flush mount and rack mount installations.

The solar flat plate collector can be used with various applications, including the following:
• Domestic Hot Water
• Radiant Floor/Space Heating
• Solar Pool, Spa & Hot Tub Heating
• Residential SHW Systems
• Commercial SHW Systems
• Industrial SHW Systems
• Municipal SHW Systems
• Agricultural SHW Systems

4' X 10' Flat Plate Collector - 121.25" x 47.25"
153 lbs.
4' x 8' Flat Plate Collector - 97.25" x 47.25"
113 lbs.
4' x 6.5' Flat Plate Collector - 77.25" x 47.25"
90 lbs.

High Quality

The solar flat plate collectors are manufactured with laser welding to enhance performance and aesthetics. Laser welding of the absorber tubes ensures a very high mechanical bond to withstand the high temperature gradients and thermal expansion. These collectors are made with the highest absorptive coating in the industry, a vapor deposition coating. Architectural aluminum angles inside the collector include special pin grip rivets to insure high stability. No silicon is used on the collectors. Ribbed aluminum extrusions and a smooth compressed EPDM gasket provide water tightness. This allows easy access to the collector for repair or maintenance at any time or location. Glass gaskets on the unit ensures a long life and avoids all water penetration! It is also equipped with a universal mounting frame. This variable Quick Lock mounting hardware reduces mounting time and makes it simple for anyone to install. Mounting possibilities include: pitched-roof, flatroof, ground, balcony, and façade mounting.

Our fin, tube and header are made from 100% copper, eliminating the concerns of dissimilar metals with different expansions and contraction rates, which shorten collector life and performance. Our absorber fins are coated with ‘crystal clear’ selective surface coating with a permanent protective glass layer serving multiple functions, including anti-reflection, anti-corrosion, and durability.

Advanced Assurance

The Solar Flat Plate Collectors are backed by a limited 10 year warranty!

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