Heat your home with energy from the ground.
Ground source heat pumps use pipes buried in the ground, normally in your garden, which extract heat and transfer it into your house. This heat is used to heat your radiators, underfloor heating systems, warm air heating systems and the hot water you use in your home.
Ground Source Heat Pumps circulate a mixture of water and antifreeze throughout a loop of pipes, thisis called a “Ground Loop” which is typically buried in your garden. Heat held in the ground is absorbed by the fluid in the loop of pipes and then passed through a heat exchanger and into your heat pump. Under the surface,the ground stays at a fairly constant temperature meaning the heat pump can be used throughout the year, even in winter when heating is used the most.
The length of the pipes buried in your garden, the “ground loop,” depends on the size of your property and the amount of heat you use through out the year. The longer the “Ground Loop,”the more heat can be drawn from the ground, however the more space will be required meaning your garden needs to be the correct size in relation to your property. If your garden is not big enough and space is limited, a vertical borehole can be drilled instead.
The benefits of Ground Source Heat Pumps
Ground source heat pumps are also referred to as GSHPs
- Ground Source Heat Pumps can lower your energy bills, especially if it is replacing conventional heating technologies.
- Ground Source Heat Pumps can provide you with an annual income through the government backed Renewable Heat Incentive (RHI).
- Ground Source Heat Pumps can lower your home’s carbon footprint depending on which heating technology you are replacing.
- Ground Source Heat Pumps don't require fuel deliveries.
- Ground Source Heat Pumps can heat your home whilst providing hot water.
- Ground Source Heat Pumps need very little on-going maintenance; hence they are referred to asa ‘fit and forget’ technology.
Ground Source Heat Pumps, unlike traditional gas and oil boilers, deliver heat at lower temperatures over much longer periods of time making them much more cost effective. Depending on where you live, during the winter especially, they may need to be on all the time to effectively heat your home.
How do ground source heat pumps work?
Ground Source Heat Pumps absorb heat from the ground, at low temperatures, into a mixture of water and anti-freeze inside a loop of pipes (a ground loop), which are typically buried in the garden of your property. The fluid mixture then passes through a compressor that pushes the temperaturehigher.This then heats the water for the heating systems and hot water circuits of your home. The cooled fluid mixture then passes back into the ground loop where it once again absorbs heat from the ground. This is a continuous process and works as long as heating is required.
Normally the “Ground Loop” is installed flat or coiled in trenches approximately2mts deep however if your garden does not have enough space,your Ground Source Heat Pumps “Ground Loop” can be installed vertically meaning the loop will go down into the ground to a depth of up to 100 metres, this is typical for a domestic home.
Ground Source Heat Pumps do have an impact on the environment, as they require electricity to run however the heat extracted by your installation from the ground, the air, or from water is constantly naturally renewed.
Is a ground source heat pump suitable for my property?
Is my garden suitable for a Ground Source Heat Pump “ground loop”?
Your garden does not have to be large,however the ground needs to be suitable enough to allow digging of a trench or a borehole and also needs to be accessible to digging machinery.
Is my home insulated well enough?
Ground Source Heat Pumpsare the most efficient when they produce heat at lower temperatures than more traditional boilers, it's essential that your home has adequate insulation and is draught proofed so that heating system works effectively.
What type of fuel will you be replacing by installing a heat pump?
The system will pay for itself much quicker if it replaces a home electricity or coal heating system. Ground source heat pumps and air source heat pumps may not be the best option for homes using gas from the mains.
What type of heating system are you planning on using?
Ground source heat pumps can perform better when underfloor heating systems or warm air heating systems are present, than with radiator-based systems because of the lower water temperatures homes require.
Is the system for a new or existing development?
By combininga heat pump installation with your other home improvement work you will be able to reduce the cost of installing your new heating system.
You should also consider air source heat pumps, which take heat from the air outside.
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