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How ground source heating operates

Ground source heat is thermal energy produced by the sun and stored in the earth.  This thermal energy can be used to heat buildings and domestic water using ground source heat pump technology.

Ground source heat is collected with a heat collecting piping installed in the ground. With ground source heat pump the energy collected can be used for heating of real estate and producing of domestic hot water as well as for cooling of the real estate.

Ground source heat is collected with a heat collecting piping installed in the ground. With ground source heat pump the energy collected can be used for heating of real estate and producing of domestic hot water as well as for cooling of the real estate.

Heat collecting

Heat is gathered from the ground or water by heat collection piping. This piping can be dug into the ground or sunk into a well drilled in the bedrock. A solution which features vertical drilling is known as a heat well, and is the most common method of collecting heat. It is suitable for even small plots of land and is more efficient than horizontal loops with regard to energy supply.

An anti-freeze and environmentally safe liquid solution circulates in the piping and is warmed up by the heat which has accumulated in the surrounding earth. In the ground source heat pump’s evaporator, energy is transferred from the liquid solution to a refrigerant, cooling the solution approximately three degrees.

The temperature and pressure of the refrigerant is increased to a higher level by using a compressor. In the condenser the energy is transferred from the refrigerant to the water circulating in the (underfloor or radiator) heating system and to domestic hot water heating in the energy accumulator.

Heat distribution

The best efficiency from a pump is achieved when heat distribution is carried out using underfloor heating or some other low-warmth method.  In underfloor heating, the temperature of supply water is lower (28–40 degrees) than in radiator heating, for example, where the supply water temperature is usually between 35–60 degrees. Radiator heating does not rule out ground source heating, as Gebwell’s ground source heat pumps can reliably produce water with a temperature of 60 degrees.

 

Ground source heat pumps

Qi ground source heat pump

Compact and quiet ground source heat pump is suitable especially for single family homes.

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T² heat pump

Cost-efficient and reliable solution for more demanding needs.

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Gemini heat pump

GEMINI heat pump

Advanced and versatile heating solution is particularly suitable for large properties.

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E-Flex ground source heat pump

Ground source heating system buried in the ground.

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Taurus heat pump

Reliable heat pump for large real estates.

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Installation set for Qi GSHP

Ready-made installation set ensures fast and profitable installation.

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Control group for heating KV6.3

Control group for heating

To facilitate installation of heat pump and adjusting of heating circuits.

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Valve group for Qi GSHP DN25

Collector valve group

To facilitate installation and maintenance of all Gebwell heat pumps.

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Gebwell cooling convector

With wall-mounted cooling convector the almost free cooling energy of ground source heating system can be exploited reasonably.

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