Tongyi direct-heating heat pump water heater unit adopts special variable flow ratetechnology(including water flow, wind flow ,refrigerant flow )to overcome the weakness of cycle model products, and ensure the heat pump work steady and low noise, keep water temperature invariableness in the cold climate and hot climate. The quickly de-frosting technology make sure machine work well in the low- temperature、moist environment .

Tap water be heated from 55°C~70°C one-off by unit, not need to cycle many times ,convenient and reliable (factory set is 55°C)。