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  • expert support

Ground Source Heat Pump Systems

Overview of Ground Source Heat Pump Systems

A GSHP (Ground Source Heat Pump) uses a fluid pumped around pipes to collect heat from the ground. Pipes are buried using a horizontal or vertical borehole method.  Ground source systems (often termed as a geothermal heat pump) are a popular renewable energy solution for large rural houses utilising large garden areas or adjacent fields. A ground source heat pump is also particularly suitable for commercial projects using the borehole method.
A significant benefit of a heat pump system is that there is no requirement of fuel delivery. Most rural dwellings are off-gas and therefore rely on delivery of heating oil or LPG.

How a Ground Source Heat Pump System Operates

The heat pump is activated once a demand signal is received from the heat emitters or the domestic hot water. The heat pump circulates a glycol mix around the ground loops that absorbs heat from the ground. This warm fluid returns to the heat pump unit, it then passed through a compressor that significantly increases the temperature. A heat exchanger transfers the heat from the glycol to the heating and/or hot water system.
A Ground Source unit is particularly suitable for use within well-insulated properties with a high-efficiency heating system. Underfloor Heating Systems or a low-temperature radiator system is particularly suited to this heat source.

System Design & Expert Support

Once a detailed heat loss and heating system output design is complete a GSHP can be sized. The collection calculation and integration considerations can be a much more complex assessment.
An evaluation of the type of ground (soil, clay, sand for example) gives us an indication of the extraction rate; we can then calculate the distance between the ground loops and the length of each loop. Incorrect design length of the ground loop circuit or over proximity in the layout design can and probably will cause over-extraction of ground energy.

We use the latest design standard and have wealth of experience, our in-depth design methods reduce the risk of over-extraction and integrate the heating and hot water systems correctly. The pipes are pulled from the chamber.
As part of our MCS Commissioning service, we can correctly balance the flow rates of each ground loop and check the glycol content. We will then set the heat pump controls in accordance with the heating system and collectors.

Tailored Heat Ground Source Heat Pump Systems

Collaborating with reputable product companies, reliable heat pump manufacturers and correctly designing a system we can confidently supply you with the best solution for your project. The performance of a heat pump weighs significantly on the design and integration of a GSHP system, something that is second nature to our experts. Talk to Tailored Heat Supplies about your new build or renovation project, we will guide you through how a ground source will work for you.

Downloads Manuals and Installation Guides

Downloads Manuals and Installation Guides