Costs, savings and maintenance
Costs of installing a typical system range from £7,000 to £17,000. There are one off payments currently available from the government through the RHPP scheme to contribute towards your installation costs; £850 for air-source and £1250 for ground-source heat pumps.
Costs & Maintenance
Over and above the one-off installation cost of £7,000 – £17,000, running costs will depend on a number of factors – including the size of your home and how well insulated it is. If you opt for an open-loop water-source system the maintenance cost is typically higher, although they tend to be more efficient.
Heat pumps need electricity to run; to move the ground loop fluid through the ground loop. However, the heat energy that they take from ground, air, or water is more than the energy that they use.
Unlike gas or oil boilers, heat pumps deliver heat at lower temperatures over much longer periods. This means that during the winter they may need to be left on 24/7 to heat your home efficiently. Low Surface Temperature (LST) radiators are recommended and should never feel as hot to the touch as they would do when using a gas or oil boiler, but can be very efficient when working with a heat pump.
In the right home the savings can be considerable. The Energy Saving Trust estimates that when replacing an existing electric heating system in a 3 bed semi detached home you could save up to £610 per year, with homes using oil and solid fuel saving around £300. This is before any contribution from the Renewable Heat Incentive and RHPP.
- How does the heat from a heat pump reach the house?
- The ground loop in the system contains a carrier fluid which absorbs the heat in your ground. It's pumped around to the pump unit in your house, which transfers the heat from the carrier fluid to your water and concentrates it at the same time, meaning that it is hot enough to be used in your heating and as hot water.
- Where should I put my heat pump unit?
- Usual locations include your utility room, basement or even out in the garage.
- Can I heat a swimming pool using a ground source heat pump?
- Yes, a system can be designed purely for your pool, be it indoor or outdoor, and if required it can form a heating and hot water system for the whole of your property.
- Will a ground source heat pump save me money on my energy bills?
- Yes, a well designed ground source heat pump system will save money and CO2 compared to other traditional heating systems, especially now that the government is in part funding new installations with the Renewable Heat Premium Payment grant. Exactly how much money you save depends on how well your system is designed and the efficiency of your old system. Find out how much you could save by completing our Energy Assessment.
- Can a ground source heat pump be installed in an old building?
- You can install ground source heat pumps in old buildings, and there are lots of examples of this being done. The design phase is very important as there are lots of issues to overcome in older buildings, especially if it is listed.
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