To generate heat using this system is the form to obtain the one that less energy consumes since it extracts energy to the surroundings, normally to the air. The generated heat can be used for heating and sanitary hot water.
The operation principle is the same one that uses a refrigerating apparatus. A refrigerator is able to cool an enclosure since acquittal energy of the inner air, to low temperature, and yields it to the outer air, to greater temperature, warming up it.
If we invested the operation of a refrigerator, cooling the outer air and warming up the interior, we obtain a heat pump. Therefore most of these apparatuses they are reversible and they allow to cool in summer and to calefactar in winter.
It presents/displays very high efficiencies when the difference between the temperature of comfort inside a house and the outside is moderate (around 10 ºC). For that reason it works very well in zones like the Mediterranean one, where the climate is benevolent.
In these conditions, it is gotten to obtain a coefficient of efficiency COP of 4 working in heating and 3.5 in refrigeration. This means that by each consumed power unit 4 thermal power units are obtained.
The energy that consumes the heat pump is electrical, and can come from the network or generated being of clean and sustainable form installing photovoltaic solar panels.
The heat pump air-water extracts heat of the outer air and it yields it to the water that circulates around the heating system. This allows that it can adapt perfectly to an installation of already existing heating and that is very useful to climatizar swimming pools.
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The hot water that it generates can warm upr a house as much if it has installed radiating as radiating ground. The radiating ground, but, besides to present/display other advantages, is the unique one that allow to be able to cool a residence.
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So that an installation with radiating ground can calefactar and cool, it is necessary to install a complementary system of dehumidification of the air.
An air-air heat pump extracts energy of the outer air and it yields to the stays of a house or the premises introducing air to the temperature of comfort.
Although this type of heat pump slightly has inferior efficiencies to the one of air-water, has the advantage that an installation of this type is reversible, does not need no complement to generate cold in summer.
A geothermal heat pump is a heat pump water-water. By means of a fluid that circulates around a buried bow, it extracts or it yields heat to the great mass formed by the subsoil.
This type of heat pump quantitatively has an efficiency higher to the one of the previous ones, since it benefits from the characteristic that presents/displays the subsoil to stay to a practically constant temperature throughout the year.
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