Welcome to the Heat Pump calculator
Do you need a heat pump quote? Are you trying to work out what size heat pump you will need for your property? This site can help you with both. Just complete the form below with details of your property and information about the heat pump system that you are interested in and it will calculate what size heat pump you need and even give you an estimate of what it will cost to design and install.
Estimating your properties heat requirement
A property's heat requirement is the amount of heat (usually measured in kilowatts (kW)) that the property needs in order to maintain the internal temperature at a comfortable level. The usual practice in the UK is to calculate the amount of heat a property needs in order to maintain the internal temperature at 21°C when the external air temperature is -4°C.
The 21°C figure used is a average of the property's internal room temperatures. Bathrooms and living areas are normally kept a few degrees warmer than bedrooms.
If your property has extensions of various build dates then complete the form below for each different area and then add the results together to get the property's total heat requirement.
Complete the form below to get an estimate of your properties heat requirement: