... heat enough power, thermal infinite; borosilicate glass 3.3, super compressive strength, resistance to rain and hail, sustainable use ... for the interface to meet your diverse water needs; 1 +1 complementarity of solar and electrical energy, energy saving, heat ... , water is more power; twisted the faucet, you can use hot water, bathing, washing, laundry, washing fruits and arbitrary. solar water heater ...