Solar House offers its customers energy-efficient heating systems - heat pumps. A heat pump, consuming electrical energy, transfers heat from a cold environment to a warm environment, using the thermodynamic refrigeration cycle, as a result of which the cold environment gets colder and the hot environment gets hotter.
There are 3 types of heat pumps depending on the primary energy source:
1.    Air to air
2.    air to water
3.    ground to water.
The most commonly used heat pumps are air toair heat pumps (air conditioners).
Air to water heat pumps are distinguished by the flexibility of using the received heat energy and the ease of installation, whose primary energy source is the outside air, and the heat extracted from the outside air is transferred to the water or non-freezing liquid in the heat pump's circular heat exchanger through the refrigerant.
The primary energy source of ground-water heat pumps is the heat of the underground environment, the temperature of which is almost constant throughout the year. This enables the heat pump to work efficiently even at fairly low outside air temperatures.
Solar House company offers high efficiency air to water type heat pumps with energy saving A+++ class. The heat pumps are designed for heating and cooling of any buildings, as well as for hot water supply. These heat pumps have a high seasonal efficiency factor (1kWh of consumed electricity results in an average of 3.3kWh of heat energy being generated). They work in the temperature range of outside air -35 +53°C, do not overload the power transmission lines and can heat an area of up to 200 m2 in the case of single-phase voltage consumers. And with three-phase models, you can heat areas with any surface. When designing a heating system with a heat pump, the presence of an intermediate heat exchanger tank is a mandatory requirement in our country, in which the working body heated by the heat pump, the non-freezing liquid, transfers the heat to the water in the tank, because in the winter quite low negative temperatures are observed here. The water heated in the tank is circulated through the internal heating network by means of a circulating pump, heating the building.
The principle of operation of the heat pump is the accumulation of low-temperature heat during evaporation and the absorption of energy during subsequent condensation. This process occurs without a change in temperature, unless the working fluid, the refrigerant (eg R410A refrigerant), is mechanically compressed, which causes the temperature to rise.
The primary circuit of a heat pump consists of elements involved in obtaining heat from an external source, such as a heat exchanger, circulation pump or air fan, and in a water-to-water heat pump, an intermediate heat exchanger. The secondary circuit includes the components necessary to convert the energy and transfer it to the consumer.
How is heating implemented in practice?
Any environment, even a frozen one, has potential heat energy. Even at negative temperatures, the air contains a certain amount of heat - at -15°C air has more potential heat energy than at -25°C, at -5°C, the air contains even more heat. The operation of the heat pump makes it possible to remove even a small amount of thermal energy from the air in the winter season and transfer it to the heated area.
An evaporative coil is located in the outdoor unit. The refrigerant, circulates in the first contour of the heat pump, which freely converts to the gaseous state and vice versa. In the evaporator of the first contour, it turns into steam, the temperature of which is lower than the temperature of the outside air. After the evaporator, the refrigerant passing through the external heat exchanger radiator absorbs part of the heat of the outside air, as a result of which the temperature of the refrigerant increases. The heated refrigerant is sent to the compressor, where it is subjected to high pressure, as a result, the refrigerant is superheated. The superheated refrigerant transfers its heat to the working fluid - water or antifreeze - circulating through the heating network with an intermediate heat exchanger. In the intermediate heat exchanger, after transferring the heat to the heating network, the refrigerant is sent to the evaporator and the described cycle is constantly repeated.
Heat pumps have the following advantages over traditional types of heating:
1)    High efficiency. The efficiency of the heat pump is 300-700%, ie. it absorbs 3-7 times less electrical energy than it emits heat. Do not require large electrical capacities
2)     Reversibility. The heat pump can be used as an air conditioner in the summer season
3)   Environmental significance. Conserving traditional energy resources and protecting the environment, including reducing CO2 emissions into the atmosphere
4)    Reliability. The component parts of the heat pump are stationary and have high performance resources.
5)    Durability. The service life of the heat pump is 15-25 years
6)   Security. It has no open flame, exhaust, flammable storage of coal, firewood, fuel oil or diesel fuel, gas leakage.