Seasonal performance factor
Seasonal performance factor (SPF) is a: ‘…measure of the operating performance of an electric heat pump over the season. It is the ratio of the heat delivered to the total electrical energy supplied over the season, but there are up to seven different ways to draw the system boundaries. For example, SPFH2 excludes auxiliary resistance heating while SPFH4 includes it – making a large difference.’
Ref Non-domestic Building Services Compliance Guide For Scotland, 2015 Edition v1.1, published by the Scottish Government, Building Standards Division in April 2018.
See also: Coefficient of performance.
[edit] Related articles on Designing Buildings Wiki
- Absorption heat pump.
- Air source heat pumps.
- Coefficient of performance.
- Combined heat and power CHP.
- Domestic heat pumps and the electricity supply system.
- Earth-to-air heat exchangers.
- Exhaust air heat pump.
- Ground source heat pumps.
- Heat exchanger.
- Heat pump.
- Heat recovery.
- Residential heat pump installations: the role of vocational education and training.
- Solar thermal heating.
- Types of domestic boiler.
- Water source heat pumps.
Featured articles and news
Gregor Harvie argues that AI is state-sanctioned theft of IP.
Many resources for visitors aswell as new features for members.
Using technology to empower communities
The Community data platform; capturing the DNA of a place and fostering participation, for better design.
Heat pump and wind turbine sound calculations for PDRs
MCS publish updated sound calculation standards for permitted development installations.
Homes England creates largest housing-led site in the North
Successful, 34 hectare land acquisition with the residential allocation now completed.
Scottish apprenticeship training proposals
General support although better accountability and transparency is sought.
The history of building regulations
A story of belated action in response to crisis.
Moisture, fire safety and emerging trends in living walls
How wet is your wall?
Current policy explained and newly published consultation by the UK and Welsh Governments.
British architecture 1919–39. Book review.
Conservation of listed prefabs in Moseley.
Energy industry calls for urgent reform.
Heritage staff wellbeing at work survey.
A five minute introduction.
50th Golden anniversary ECA Edmundson apprentice award
Showcasing the very best electrotechnical and engineering services for half a century.
Welsh government consults on HRBs and reg changes
Seeking feedback on a new regulatory regime and a broad range of issues.
CIOB Client Guide (2nd edition) March 2025
Free download covering statutory dutyholder roles under the Building Safety Act and much more.