Air Source Heat Pump Water Heating System (ASHPWH) is a revolutionary innovative product which gives 24/7 hot water. Domestic Hot Water Storage Tank, Domestic Hot Water System, Domestic Hot Water Tank.ASHPWH works with a world wide proven high performance & power saving technology and regarded as 4th generation water heater. It is unique because, approximately 75 % of total heat energy generated is absorbed from the surrounding ambient air and 25 % from electricity.This series of heat pump is designed with external Copper coils heat exchanger . It brings better corrosion protection and widely applied for family and hotel.