Heat Pumps

Heat Pumps
Heat Pumps Heat Pumps

System Description

Heat pumps use free natural energy of soil, underground water or air. In order to operate the heat pump itself only electrical energy is necessary that powers the compressor (also energy for the fan when using air heat). In comparison to the old heating system you will achieve costs saving on heating of 60-75%. Heat pumps are full and comfortable heating even in our latitudes. In addition to standard heat pumps with a standard output temperature of 55 °C, there are also heat pumps available with an output temperature of 65 °C that are suitable also for radiator heating.

The principle of heat pump operation is opposite to the principle of a refrigerator which removes heat (from the inside) and passes it into the surrounding environment (room). Thus, the heat pump extracts heat from the environment and passes it into the house.

Heat pumps for domestic hot water heating are not in principle different from AIR-WATER heat pumps but they have lower performance. They are made as simple or compact units whose performance is sufficient to heat water in the tank. They use excess (residual/waste) heat from rooms (e.g. kitchen, bathroom, pantry, cellar) so these rooms are slightly cooled and dried.

The offer also includes multifunctional devices with an integrated tank (300 and 500 l) allowing additional heating from the solar system, or a compact device with a small ground collector ensuring the use of energy from the ground, similar to GROUND-WATER heat pumps.

Heat Pump GroundGROUND-WATER heat pumps

GROUND-WATER (brine-water) heat pumpsuse heat accumulated in the ground as a source of energy. Rain and sun heat the top layer of the earth from spring to autumn. This energy is gained by   heat pumps from ground collectors - pipeline located about 1.2 m below the ground. In order to achieve sufficient power it is necessary to bury the pipeline in the area roughly twice as large as the heating surface of the house.

The second type is energy obtained from deep wells. Heat pumps take energy along the entire length of the well where two pipe loops are embedded, representing a kind of heat exchanger. The approximate depth of the well (m) is calculated as a heat pump power (in kW) x 14 There are several wells made as necessary in the length of about 60-80 m. Compared to the previous type (ground collector) the disadvantage is that the ground at great depths is heated slowly (higher risk of freezing). However, the advantage is the minimum space it occupies in the garden. Earthwork of soil excavation for the ground collector or the well is relatively expensive.

Heat Pump WaterWATER-WATER heat pumps

WATER-WATER heat pumps pumps are one of the most efficient methods of obtaining energy from the environment (water). The temperature of underground water is relatively stable (7 °C to 13 °C). It depends from where it is taken. The ratio between the energy obtained from water and energy from the heat pump at the output is the so-called coefficient of performance (COP). In the heat pumps of this type it exceeds the value of 5, in terms of the annual average.

Before using water as the primary source of heat, it is necessary to test the yield of the source (sufficient volume of water) and its quality.

Heat Pump AirAIR-WATER heat pumps

AIR-WATER heat pumps take heat from the surrounding air which is cooled. In extreme cases, they can operate at temperatures down to -20 °C but their efficiency at low temperatures is greatly reduced. During the days when the temperature reaches below-zero levels it is optimal to use also the second heat source (e.g. electric boiler, flow heater, etc.). However, compared to the previous two types of heat pumps, the AIR-WATER heat pumps require minimum of work in terms of installation. The AIR-WATER heat pump is composed of an outdoor and indoor unit. The outdoor unit contains a fan and is usually placed in the garden outside the building. The indoor unit is placed in the cellar (boiler room, facility room).

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Heat pumps for domestic hot water heating are not in principle different from AIR-WATER heat pumps but they have lower performance. They are made as simple or compact units whose performance is sufficient to heat water in the tank. They use excess (residual/waste) heat from rooms (e.g. kitchen, bathroom, pantry, cellar) so these rooms are slightly cooled and dried.

The offer also includes multifunctional devices with an integrated bivalent tank (300 and 500 l) allowing additional heating from the solar system, or a compact device with a small ground collector ensuring the use of energy from the ground, similarly to the case of GROUND-WATER heat pumps.

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