It is also characterized by high energy efficiency, even higher than ground pumps.
The basic condition for installing this type of heat pump is access to a river, lake or pond. In the absence of access to open source, you can find another solution. It is enough to dig two heat pump wells. This solution will be more expensive, but such an idea has the right to life.
Taking into account the principles of heat pump operation, it can be concluded that a system that uses a water heat pump supplies heat to the building as efficiently as possible.
The advantages include no maintenance by the user, cheap in operation compared to other heating sources, constant ground temperature ensures stable pump operation conditions.
It can be the only source of heating the house.
The problem is high investment costs.
The external power source for the pump can be electricity, oil or gas.