This unit gets heat from ground water. It is a package unit(single piece), with two copper-steel heat exchanger and two water pump. Even in cold winter, the Temp of the water is still higher than 0 degree C, so it can absorb much more energy than the units using air as the heat carrier in outside door. It can supply hot water to the house and gives heat out through ground pipe(Ground heating system), radiator or fan coil to heat the room up. This unit is the wise choice for very cold area.

With DC inverter water to water heat pump unit, you can transfer heat to:
Floor heating
Fan Coils
Model Radiators
Water heaters
Ventilation systems
Swimming Pools

Advantages:
Wide range of work voltage and self-protecting function with over and under voltage.
Wide range of work temperature, even functional at -29 degree C.
High efficiency and energy saving. low power consumption.
Fast heating and cooling. Large range output.
Perfect protecting and self-diagnosis.
High powered MPU, realizing control by artificial intelligence.
Intelligent defrosting in heating.