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Heat Pumps

Please note that heat pump installations commissioned on or after 26/03/2016 must comply with new MCS product requirements aligning the scheme with the Energy related Products Directive.

For further information click here.

An Air Source Heat Pump (ASHP) is a system which absorbs heat from the outside air and turns this into useful heat energy for space heating and domestic hot water. This can be in the form of air to air (providing heated air for space heating) or air to water (providing heated water for space heating and/or domestic hot water).

An Exhaust Air Source Heat Pump (EAHP) is a system which absorbs heat from the waste air (or exhaust air) leaving a building. Heat is extracted from the Exhaust air and is upgraded into useful heat energy for space heating and domestic hot water. As heat pumps do not create heat, EAHPs primarily rely on other heat inputs to a building such as heat gains from internal equipment /occupants or from an auxiliary form of heat energy into the building. Therefore they are applicable for very low heat loss applications. A very small proportion of heat is provided by the outside air itself similar to an air source heat pump. This type of heat pump requires a certain air exchange rate to maintain its output power.

A Gas Absorption Heat Pump (GAHP) is a system which use gas to drive the heat transfer process using the partial pressures of two different chemicals at low pressure (rather than an electric driven
compressor operating at high pressure which is used in most heat pumps). It requires a gas or LPG supply. In all other senses these systems operate like any other heat pump, absorbing heat from the outside air, ground or water source and turning this into useful heat energy for space heating and domestic hot water. This can be in the form of air to air (providing heated air for space heating) or air to water (providing heated water for space heating and/or domestic hot water).

A Ground Source Heat Pump (GSHP) is a unit which absorbs heat either directly or indirectly from the ground by extracting & re-injecting water from an aquifer (direct) or by using a ground heat exchanger (in-direct) which is usually a closed loop of pipework buried within the ground (vertically or horizontally) conveying a water/antifreeze mixture as the heat transfer medium .. It upgrades this low temperature heat into useful higher temperature heat energy for space heating and domestic hot water. This can be in the form of ground/water to air (providing heated air for space heating) or ground/air to water (providing heated water for space heating and / or domestic hot water).

Water Source Heat Pumps (WSHP) extract the heat from open water courses such as rivers, lakes and canals and can also extract water from sea water.

A Solar Assisted Heat Pump (SAHP) is a system which absorbs atmospheric heat (e.g via an external absorber) and turns this into useful heat energy for domestic hot water. An external absorber acts as an evaporator and utilises the heat in the atmosphere as well as direct solar radiation. Generally the absorber will be placed externally however in some cases may be placed internally. At present MCS only covers SAHPs which provide domestic hot water however it is possible this may change to include space heating in the future.

MCS approved products satisfy rigorous and established European and International standards. In addition to laboratory testing, the product manufacturers also must undertake factory production control audits to show that they have the management systems in place to support the quality production practices and demonstrate the products at the end of the production line are of the same quality as those that are tested.

Below is the standard required to be met for Heat Pumps under the MCS scheme, along with access to the SCOP/SPER Calculators.  

Technology Specific Scheme Requirements

Heat Pump Systems

MCS 007

Product Certification Scheme Requirements - Heat Pumps

5.0

24.09.2015

FAQs FAQs for MCS 007 V5.0 & MIS 3005 V4.3 1.0 -

 

Heat Pump Reference Materials

SCOP / SPER Calculator*

Document Download here Version Date
MCS 026 - SCOP and SSHEE Calculator  Click here 1.0 01.05.2015
MCS 027 - SPER and SSHEE Calculator  Click here 2.0 16.11.2015
MCS 028 - DHW Calculator  Click here 1.0 01.05.2015

*The SCOP/SPER calculators are for the use of the Certification Bodies only. They will use the calculators and inform MCS of the data produced, who in turn will upload it to the product search page.


Product standards that have been withdrawn are available for reference here.