Larger houses may require more than one borehole. Each borehole is typically metres deep, but this is heavily dependent on the geological conditions in your area. You will need space inside your home for the indoor heat pump unit, which contains key components.
The inside unit often contains the hot water cylinder and is roughly the size of an American style fridge. Ground-to-water heat pumps need a wet system. This is a great opportunity to make sure the wet system is optimised for a heat pump, resulting in lower running costs.
You can find more information about the most effective wet system for your heat pump here. Click here for air-to-air heat pumps. We recommend speaking to at least three installers to provide a quote for your heat pump system to give you the best idea of likely costs for your home. While hybrid working is great for reducing emissions from large offices, it does increase energy bills at home.
But the one thing we have in common…. You must accept preferences cookies to view location-specific content. I'm looking for Practical advice Heating your home Reducing home heat loss Generating renewable electricity Fixing damp and condensation Buying energy efficient products Switching your energy supplier Saving water at home Storing energy.
Heating your home Ground-to-water heat pumps. Eliminates noisy outdoor compressors and fans. Reduces greenhouse gas emissions by the equivalent of planting trees or taking two cars off the road. What to look for: For federal tax credits, pumps must meet Energy Star efficiency standards. For closed-loop systems, you need an EER of To find trained installers and designers who know the local geology and how to size systems for maximum efficiency, go to the International Ground Source Heat Pump Association's website.
The Database of State Incentives for Renewable Energy provides up-to-date information on state incentive programs. Can I retrofit one?
Retrofitting a ground-source system is not difficult, as long as burying the ground loop is feasible. A house will need ducts to distribute cool air on hot days. Those same ducts can provide warm air in winter. Some geothermal heat pumps can hook up to an existing air handler, other units come with their own integral air handler. Houses with hot-water heating can use geothermal systems, too, although additional radiators may be needed because these systems do not reach the higher temperatures of fuel-fired boilers.
That's not a problem for radiant floor heat, which operates at lower temperatures. Cookie banner We use cookies and other tracking technologies to improve your browsing experience on our site, show personalized content and targeted ads, analyze site traffic, and understand where our audiences come from.
By choosing I Accept , you consent to our use of cookies and other tracking technologies. By Max Alexander. Pinterest Email Pocket Flipboard. An electrically powered, geothermal heating and cooling system transfers heat between your house and the earth using fluid circulated through long loops of underground pipe.
Geothermal Heat Pump System In principle, a geothermal heat pump functions like a conventional heat pump, by using high-pressure refrigerant to capture and move heat between indoors and out.
How big the ground loop needs to be depends on how big your home is and how much heat you need. You can then use this heat in a radiator, for hot water, or in an underfloor heating system. Whether you'll need an additional back-up heating system will depend on your property. Alternatively, you could try an air source heat pump. These are usually placed outside at the side or back of a property, and take heat from the air. For more details, see our separate guide to air source heat pumps.
Ground source heat pumps generate less CO2 than conventional heating systems, but you still need to use electricity to drive the pump. A ground source heat pump system can help to lower your carbon footprint as it uses a renewable, natural source of heat — the ground. According to the Energy Saving Trust, a heat pump with mid-range efficiency would save you most carbon when used to replace an old electric heating system with storage heaters or coal heating system.
A heat pump also requires a supplementary source of power, usually electricity, to power the heat pump. So there will still be some resulting CO2 emissions. Don't pay more for energy than you need to. Visit Which? Switch and find the cheapest gas and electricity tariff for your home.
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