Solar water heater. Solar heaters, solar energy water heater, Solar Heaters Model: SPECIFICATION: 1. Material of Inner ... storage tank, 2. When using the hot water, the cold water flows through the inlet, the copper coil absorb ... the heat then transfer into the cold water, so that the temperature rise up ceaseless, 3. ... stainless steel screwFeeder tank5L galvanized steel solar water heater