Product is the most obvious is that it is derived from energy from the Sun, solar energy is a clean and inexhaustible, the big difference here. Relative to electric water heaters, energy saving. Equivalent to the gas water heater, and it security.
Can say that solar water heaters now have become the first choice for Chinese consumers to buy water heaters inside the category category and purchase an increasing proportion. Used to be three gas water heaters, electric water heaters and solar power, last year's data, solar has more than half of the country, I believe this data is ever-expanding.