Five, the price, different brands, different types of gas water heater price gap is very large, commonly used household gas water heater prices ranging from 800-3000 yuan.

According to the synthetic energy price defined, analyses the main factors of effecting solar water heaters economics by the method of comparison with corresponding general water heaters.

Standard of equivalence of armor plate of the aluminous material of metallic stuff die-casting of water heater, cathode copper, cold rolling, galvanization armor plate has litres bigger.