The thermal energy of a heat pump is pumped from a heated tank located at a low temperature or by the use of mechanical work either with the help of a hot tank very high temperature.
Existing technologies in heat pumps are air – water pumps, water - water pumps and immediate relief, windy air. The easiest solution is to manufacture pumps air - water but have a lower efficiency than geothermal pumps (water - water). On the other hand immediate relief pumps have increased maintenance costs.
Heat pumps can meet the requirements of your home either your are building it now or just renovating. In housing that is gas or oil boiler, heat pumps can be used either alone or by combination with the existing heating system.
Parts of a heat pump are the evaporator, the compressor, the condenser and finally the expansion valve. The external air is guided by a fan to the heat pump. There is the evaporator. The evaporator is connected to a system containing FREON which at very low temperatures can be converted to gas. The FREON evaporates and absorbs heat from the external air passing over the evaporator. Immediately after FREON is compressed and by the use of the condenser reaches a high temperature which eliminates the absorbed heat and returns to its liquid state. At the same time the evaporator air comes at a lower temperature. In summer a heat pump can be used to provide cooling.
The installation of a heat pump is easy and quick. No need for a special place to put it and not extra work. The outdoor unit can be placed even on the balcony.
The efficiency heat pumps can be started from 2.5 to 3 for water - air pumps and reach 5 in the case of geothermal pumps. This is because heat pumps do not convert electrical energy into heat but into kinetic. Set in motion an electric compressor. This means that when an air - water pump efficiency is 3 then it gives 3 kilowatts of thermal energy for each kilowatt of electricity. So the cost is very low, especially if combined with underfloor heating instead of radiators.