Automatic control, comfortably use.Be Fission type design, more flexible installation Be Safe and reliable, large ... etc.There are dozens kinds of water tanks. , be vertical type, horizon type, stainless steel, painting (golden, silver, white, etc.), and ... of leakage, corrosion, incrustation, etc.Built-in high-efficiency heat exchanger and water circulating pump in the host.Automatic defrost, power ...