Heat your home with a ground source heat pump

Ground Source Heat Pumps from Solar Heat Tech

If you're currently using heating oil, LPG or electric to heat your home, you could save money on your heating bills and have greater control over your heating. Ground Source Heat Pumps have a lot in common with Air Source Heat Pumps but because of the ground works involved in the installation capital costs are higher.

How does it work?

The earth absorbs and stores heat from the sun, providing us with a constant source of naturally renewed energy. Just a few feet under the ground, there is an average temperature of between 4°C to 12°C. The trapped energy represents a vast reserve of low grade heat available to be used. GSHP’s gather heat using either collectors buried at a shallow depth, or from boreholes which are drilled deeper underground. A GSHP circulates a mixture of water and glycol around the collector. When the warmed solution returns to the heat pump it transfers its energy to a refrigerant, boiling it. The refrigerant is passed through a compressor. When compressed the refrigerant turns into a gas and increases its temperature. Then via a condenser coil it contracts returns to a liquefied state and gives up its heat. This heat is harnessed via a heat exchanger and used to heat water and ultimately your home. As the ground temperature is fairly constant throughout the year heat pumps can be used as an economical source of heat even in the middle of winter. Solar Heat Tech offer ground works as part of the installation so you have a complete start to finish project with us from ground works to application process. 

Closed or open loop systems

Closed loop ground source systems use sealed pipes that are placed either horizontally or vertically in the ground. A glycol solution is pumped through the pipes, asorbing heat as it moves, this heat is then extracted by the heat pump and released at a higher temperature through compression.


Open loop ground source systems take water from aquifers or open bodies of water (ponds, rivers etc). They extract the heat, ageing through compression, and then release the cooled water back into the ground.


  • Can heat your home as well as your water
  • You don’t need a Gas Supply
  • The ground as a source of heat is more stable than the air because the temperature of the ground is less volitile than the air
  • Low maintenance – They require very little maintenance and have a life span of well over 20 years
  • Because they run at lower temperatures they are a perfect heat source for underfloor heating systems and when correctly sized can be retro fitted to radiator systems and regulate the temperature of your house more efficiently


Your heat pump should be looked at once a year by a professional installer, this ensures that your RHI payments can continue and any conditions of manufacturer’s warranties are met. Open loop solutions should require no more maintenance than closed loop systems if they are designed and installed correctly.

Yes, all Ground Source Heat Pumps we install come with at least two years parts and labour warranty. Extended warranties of up to seven years are available, details of these can be provided on request.

Yes, we offer service contracts with monthly, quarterly or annual payment schedules. Details of the different levels we offer are available on request.


Not necessarily. Ground Source Heat Pumps can work with your current radiators depending on their size, we will measure all your radiators to see if they are sufficient at our no obligation site survey prior to offering you a quotation.




No, we can utilise your existing 240v supply to power the Heat Pump.


That depends on the local conditions at the installation site. We can determine the exact groundworks required by undertaking a ground survey.

Only the best quality heating systems

We only use quality Ground Source Heat Pumps from IDM or NIBE. We expect our heating systems to last for a minimum of 20 years with little maintenance. Because of this, we don’t skimp on the detail, only using top quality components with the highest standards of engineering.

Government incentives

Government incentives are still available under the Domestic RHI and Non Domestic RHI scheme which have been extended to run until March 2021.

For the latest tariffs for Domestic RHI go to:

And for Commercial rates:

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