Solar tubes
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energy-saving heat pump water heater from New Times New Energy Science & Technology Co.,Ltd
heat pump water heater, energy-saving
different types from domestic to commercial ,from swimming pool to multi-function heat pump(hot water, cooling, heating) and super low temp. heat pump which can work at -25c with cop: 1.6. You can have an ideal choice.
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Web Tech Engg Pvt Ltd
Flat Plate Collector Based Solar Water Heating System
The Solar radiation is absorbed by Flat Plate Collectors which consist of an insulated outer metallic box covered on the top with glass sheet. Inside there are blackened metallic absorber (selectively coated) sheets with built in channels or riser tubes to carry water. The absorber absorbs the solar