Diy High pressure Heat Pipe Solar Water Heater on rooftop.$1.38 - $1.68 / Liter.10 Liters High Efficiency Heat Pipe Solar Panel 150L.$200.00 - $300.00 / Set.1 Set (Min.Order) Customers either at home or abroad highly praise our projects for their high efficiency and excellent energy-saving system.Images of 150L Pressurized Heat Pipe Solar Energy Water He imagesSome results are removed in response to a notice of local law requirement.For more information,please see here.12345NextSolar Water Heaters ESCOOSolar water heater is a heating device that converts solar powered water heater into Solar hot water heater,High efficiency.Usually divided into pressure and non-pressure,direct solar water heaters (vacuum tube solar energy) usually cost less,indirect solar energy requires a slightly higher heat exchanger price.Passive solar applications are widely used,rooftop solar projects,usually