Building Heat Loss Calculator

Single Licence

For personal use only, not for public display or distribution.

Special Offer
£40.00 £20.00 ex. VAT


A step-by-step calculator that allows you to calculate the annual heat loss for domestic dwellings situated anywhere in Europe. It allows you to specify variables such as size and construction materials to calculate the heat loss index. Selected options can then be modified to determine the effects of changes on the heat loss.

Annual Multiple Licence (Unlimited Users)
> Academic: £250 +VAT
> Commercial: From £500 +VAT
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This interactive energy requirements tool allows you to calculate the annual heat loss for domestic dwellings situated anywhere in Europe. It provides the area of masonry, windows and roofing of a given property as well as its enclosed volume.

The annual heat loss is calculated, as is a heat loss index, which can be used to identify the efficiency of the property.

The programme utilises graphics to illustrate the various parts involved in arriving at a value for building energy losses based on appropriately supplied information.

On arriving at an estimated heat loss value for the selected property, the programme allows you to modify certain options (such as insulation and inside air temperature) to determine the effects of changes to the property on the heat loss.

The programme consists of the following functionality:

  • Background information
  • Specify Location
  • Specify Building Type
  • Specify Building Dimensions
  • Specify Building Materials
  • Specify Window Area
  • Specify Inside Air Temperature
  • Details of Building Heat loss and Energy Efficiency Rating

Minimum System Requirements:

  • PC only - Windows XP, Vista, 7
  • Internet Explorer 8 (or above)
  • Single 2GHz processor
  • 1GB RAM
  • 1024 x 768 pixel screen resolution
  • Sound card and speakers/headphones
  • DVD-ROM Drive
  • Broadband Internet Connection*

*An active internet connection is only required to install any software plug-ins that may be required.

Internet Browser Requirements:

  • Internet Explorer 8+
  • JavaScript enabled
  • pop-ups enabled
  • Cookies enabled
  • Adobe Flash Player 8+*
  • Unity Web Player*

*The programme automatically checks that the required software is installed on learner's system and will display installation instructions if required.

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