Introduction
1.Energy efficiency is higher than air heat pump’s and saves more energy when   it operates.
2.the operation shall not be affected by air and environmental temperature,
  and is more stable, supply hot water all the year round.
3.It heats and also can cools simultaneously, and consumes less energy.
4.Cooling water can be groundwater, waste heat, waste water, cooling water of
  air-conditioner. Locking into cooling water of air-conditioner can be used
  as air-conditioner, at the same time, can produce hot water.
5.Scheme of groundwater is adopted then can be used to heating equipment in
  winter.
6.Heating pump and producing hot water pump are often used in Europe.
7.It’s suit for hotel, villa, school, hospital, vacation, sauna, factory and
  so on.