Duda Solar Water Heater Collectors are the most efficient solar collectors on the market. The evacuated tubes retain heat much better than flat panel collectors and therefore can work much more efficiently in cold climates. They also have a unique capability of obtaining higher efficiencies while the sun is at an angle in the east or west through passive tracking in the tubes. SRCC Certified and eligible for the 30% Federal Tax Rebate. May also be used with Duda Solar Aluminum Reflectors.
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Hailstone Resistance: up to φmm (1″), Max Operating Pressure: 87psi, Max Flow Rate: 5.25 gpm
14mm TU1 Copper Heat Pipes, Manifold insulation: 45mm 93 Kg/m^3 Rockwool, Rated Best Heat Retention
φ58mm x 1800mm Three-Target Cu/SS-ALN(H)/SS-ALN(L)/ALN Vacuum Tubes, High Boron Silicon 3.3 Glass
Sun Absorption Efficiency: 93-96%, Vacuum Rating: Less than 5.0 x 10^3 Pa, Lifespan:70% @ 15 Years
OG-100 SRCC Certificate Number: 10001877, Eligible for 30% Federal Tax Rebate, Winter Resistant