Solar Water Heater, Solar Collector, Solar Heating manufacturer / supplier in China, offering Imposol 150L Pressurized Air to Water Heat Pump Buffer Tank with Heat Exchanger Coil, Imposol 200L Pressurized Air Source Heat Pump Buffer Tank with Heat Exchanger Coil, Imposol 300L Pressurized Heat Pump Hot Water Buffer Tank with Heat Exchanger Coil and so on.