Heat Pumps in Northern Ireland

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Heat Pumps The Technology

A heat pump is a refrigerant based system, like your refrigerator at home. The system can absorb low grade heat from the air (air source), water (water source) or ground (ground source), and raise its temperature efficiently to be suitable for space heating and/or hot water.

How Heat Pumps Work

Heat pumps are a great solution for your home or business air system, some providing both heating and cooling to keep you in all-year-round comfort.

Heat Pumps The End Products

An ideal complement to the lower operating temperature of heat pumps is under floor heating, where this is not practical i.e. retro-fit installations there are the options of space heating, designer radiators and innovative skirting heating.

Under Floor Heating
With underfloor heating there is no need for radiators, meaning you retain all your living or office area, without the inconvenience of convection or other low energy heating systems taking up unnecessary space.


Jaga Play Low Energy Radiator
Ranges of compact fan assisted and designer radiators specifically made for use with low energy heat pumps are available, offering the right radiator for every situation. Form, functionality and colour can be coordinated perfectly to match the surroundings.

ThermaSkirt® Thermal Skirting
Thermal skirting fits discretely around the perimeter of rooms leaving all the usable space to plan your layout. Being installed above ground with minimal disturbance to floors or structure it facilitates installing of renewables into older houses & buildings.

Air Source Heat Pumps

Air source heat pumps are much easier to install than ground or water source heat pumps, they are more suitable for a wide variety of properties from flats & apartments to detached houses and hotels.
Air Source Heat Pump

An air source heat pump extracts heat from the outside air in the same way that a fridge extracts heat from its inside. It can extract heat from the air even when the outside temperature is as low as minus 20°C.

Air source heat pumps can be one of the most cost effective methods of realising a renewable energy source as free energy. Ambient temperature is always available in the atmosphere and there is no necessity for disruptive and sometimes expensive ground collector installations as with ground source systems.

The term coefficient of performance (COP) is used to describe the ratio of useful heat movement to work input. When used for heating on a mild day of say 10°C, a typical air-source heat pump has a COP of 3 to 4, thats a 300% to 400% increase in efficiency!

A typical electric heater has a coefficient of performance of 1.0
i.e. 1 kilowatt in to 1 kilowatt out.

frequently asked questions

Ground Source Heat Pumps

Ground source heat pumps use heat extracting coils buried in the ground to extract the heat (in some circumstances the coils can be laid a local water source). The resulting extracted heat is used to heat radiators, underfloor or skirting heating systems and provide hot water. Although more expensive than air source heat pumps, ground (or water) source heat pumps can be more efficient.

The heat pump circulates a mixture of water and antifreeze around the buried ground loop, heat from the ground is absorbed into this fluid and is pumped through a heat exchanger in the heat pump.

Buried Heat Pump Heat Exchanger Coils

Low grade heat passes through the heat pump compressor and is concentrated into a higher temperature capable of heating water for the heating and hot water circuits. Ground loop fluid, now cooler, passes back into the ground where it absorbs further energy from the ground in a continuous process while heating is required.

Ground Source heat pumps are dependent upon the temperature underground which is typically 8°C to 12°C in the UK all year round; it results in a COP in the range of 4.0 to 5.0 for this technology.

frequently asked questions