150 Liter Standard Passive Duda Solar Water Heater Attached Pressurized Tank Evacuated Tubes Hot, Blue

Pressurized Passive Solar Water Heater with Attached Tank Passive solar water heaters use vacuum tubes with heat pipes and an attached water tank for direct heating of potable water. Sunlight enters the tubes, converting into heat at ~94% efficiency, and is then carried up through the heat pipe to the manifold which heats the water inside of the attached water tank. Water is supplied at the inlet from city/well water, heated and then fed directly into the hot water plumbing of the building. This