- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 09 Nov 2016
According to the Non-domestic building services compliance guide, 2013 edition, published by HM Government, the term ‘heat generator’ refers to ‘…a device for converting fuel or electricity into heat – e.g. a boiler or radiant heater.’
Heat generator efficiency is the ‘…useful fuel heat output divided by the energy input in the fuel (based on gross calorific value) or electricity delivered to the heat generator, as determined by the appropriate test methods for that type of heat generator.
Heat generator seasonal efficiency is ‘…the estimated seasonal heat output from the heat generator divided by the energy input. This will depend on the heat generator efficiency and the operating mode of the heat generator over the heating season. For example, in the case of boilers it is a ‘weighted’ average of the efficiencies of the boiler at 30% and 100% of the boiler output. For other technologies the heat generator seasonal efficiency may be the same as the heat generator efficiency.’
'Heat efficiency credits are awarded for the provision of additional measures, such as additional controls, that raise the energy efficiency of the system and go beyond recommended minimum standards. Different credits apply to the different measures that are available for heating and hot water technologies.’
|'Effective heat generator seasonal efficiency = heat generator seasonal efficiency + heating efficiency credits.'|
 Find out more
 Related articles on Designing Buildings Wiki
- Building services compliance with the building regulations.
- Building services.
- Condensing boiler.
- Corrosion in heating and cooling systems.
- Domestic building services compliance guide.
- Gross calorific value.
- Heat pump.
- Heat recovery.
- Heat stress.
- Heat transfer.
- Non-domestic building services compliance guide.
- Radiant heating.
- Space heating system.
- Thermal comfort.
- Underfloor heating.
Featured articles and news
Have the pressures of the market shredded the core values of professionalism?
Lead times are a measure of the amount of time that elapses between initiating and completing a construction process.
Government releases first tranche of funding for removal of unsafe high-rise cladding.
How to ensure UK transport infrastructure copes with severe winter weather.
Location shortlist for controversial new footbridge revealed.
Under the Party Wall Act a property owner has the legal right to do works that might otherwise constitute trespass or nuisance.
BSRIA examine the 'unpredictable' 2018 global air conditioning market.
ICE publish new report calling for new sector-wide body to help avert structural failures.
The rainbow JCB will be making a welcome return to the London Build Expo on 23 and 24 October at Olympia.
An introductory article to external works - all activities carried out to the external environment of a building project.