Heat Pump

Why have a Heat Pump?

  • A Heat Pump uses heat “taken” from the outside and transferred to your home.
  • Runs on electricity so no fuel deliveries, flues or flue safety maintenance issues.
  • Uses only a fraction of electricity to generate heat.
  • No smell or objectionable fumes.
  • Can be used with “wet” Underfloor Heating or Radiators.
  • Produces Hot Water.
  • Works well with most properties, in particular New Build and well insulated properties.
  • Financially supported by the Government Renewable Heat Incentive – See RHI link below.
  • Permitted Development under Planning rules.

RHI Scheme

How do they work?

A Heat Pump uses refrigeration technology to extract heat from the air, soil or flowing water. By careful choice of the refrigerant gas, and design of the heat absorbing components, Heat Pumps will continue to extract heat down to outside temperatures below -15oC and some designs are capable of good performance well below this temperature.

Heat Pumps act as heat ‘multipliers’.  They use a small amount of electricity to harvest outside heat and ‘concentrate’ it to a useful temperature; capable of running Radiators, Underfloor Heating and producing Hot Water.

Basic RGB

Principle of Heat Pump Operation

Heat Pumps are at their most efficient when used to heat well insulated properties with generous sized radiators or underfloor heating. For retrofit situations, some adjustment of radiator sizes may be necessary. However many properties that have had loft and cavity wall insulation, double glazing and other energy efficiency measures installed since their heating system was first fitted, may need little or no change.

There are two types of Heat Pumps; Air Source and Ground Source.

Air Source Heat Pumps use a slow running fan to draw outside air through the unit and the heat is extracted from it, chilling the air that passes through it.

As the refrigerant gas that transfers the heat has a boiling point of around -30oC the Heat Pumps will continue to work at low temperatures.

Ground Source Heat Pumps rely on buried or submerged pipework to extract heat from the ground or from water.

Ground collectors are either horizontal or borehole types:-

Horizontal collectors require a field or possibly a very large garden for them to collect sufficient heat.

Boreholes are more suitable for smaller land areas, but are somewhat more expensive to have installed.

Heat Pumps are available in range of capacities; units suitable for small domestic dwellings to schools and other large buildings such as offices, nursing homes and GP surgeries.

The New Ecoforest Range of Ground Source Heat Pump

Ground Source Heat Pump Ground Source Heat Pump
EcoGEO B Ground Source Heat Pump EcoGEO C Ground Source Heat Pump with Integrated Hot Water Cylinder

The EcoGEO B is a state of the art Ground Source Heat Pump which is inverter driven, providing between 5kW-22kW output.  Not only does this Ground Source Heat Pump have the ability to achieve such a large demand, but it is unique in its ability to do this from a single phase supply.  The inverter driven technology eliminates the need for larger buffer storage and thus reduces the overall footprint of the installation.

The EcoGEO range incorporates a Copeland scroll compressor, Carel electronic expansion valve, high efficiency speed controlled Wilo circulating pumps and Alfa Lavel asymmetric plate heat exchangers.

The EcoGEO C model also benefits from an integrated 170litre Stainless Steel Domestic Hot Water Cylinder, reducing the installation foot print still further.

Manufacturer’s of Heat Pumps, to name but a few, are: Mitsubishi, NIBE, Ecoforest, Daikin, Danfoss, Dimplex, Samsung, Grant, Vaillant, Worcester Bosch.


EcoForest Ground Source Brochure

Samsung Air Source Brochure

Daikin Air Source Brochure

Dimplex A Class Air Source Brochure

Mitsubishi Air Source Brochure

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