! 14 Dec 2018: New version (1.3.0) of XCC now released. Click here to see what's changed

Version information

BRE Excess Cold Calculator

Current version is 1.3.1

Version 1.3.1 (Published on 11 Sep 2020 - Bug fixing):
List of changes:
  • Security updates
  • Spelling/grammar

Version 1.3.0 (Published on 12 Dec 2018 - Upgrade):
List of changes:
  • Security updates
  • Improvements to error reporting
  • Updates to libraries
  • Bug fix to user tariff entry

Version 1.2.2 (Published on 13 Dec 2017 - Upgrade):
List of changes:
  • Solid and cavity wall U-value updates
  • Correction to processing of roof windows
  • Contact us link now creates an email if user is not logged in

Version 1.2.1 (Published on 26 Jun 2015 - Bug fixing):
List of changes:
  • Change of heating category and control code used for heat pump systems.
  • Correction to display of apostrophes in FAQ page.

Version 1.2.0 (Published on 10 Feb 2015 - Upgrade):
List of changes:
  • Addition of basement wall u-value to help box.
  • Correction to storage heater capacity calculation in room data section.
  • Improvements to usability of interface.

Version 1.1.0 (Published on 02 Dec 2014 - Bug fixing):
List of changes:
  • Enabling login with emails including apostrophes.
  • Correction of treatment of envelope adjacent to unheated spaces

Version 1.0.0 (Published on 04 Dec 2013 - Major):
List of changes:
  • PDF reports can now be created. Previously created PDFs are listed and can be viewed directly without re-running the calculation.
  • Cases created by other users can be easily recreated in your account, depending on sharing permissions set by the original case creator.
  • A watermark has been added to reports produced by unlicensed users.
  • An updated user guide available for download (v1.1).
  • An improvement to the way individual room data is processed.
  • Minor graphical enhancement to temperature reporting.
  • Minor enhancement to the user interface help message display.

Version 0.8.0 (Published on 08 Nov 2013 - Upgrade):
List of changes:
  • Addition of new wall, floor and window types to the U-value help section.
  • Addition of a Fuel units converter to the help section.
  • Addition of an Air Change Rate calculator to the help section.
  • Collection of property type and age in the Case Information section.
  • Graphical enhancements to fuel cost reporting.
  • An updated user guide available for download.
  • A change to the way secondary heating is assigned for dwellings with old electric storage heaters.
  • A correction to the way the boiler efficiency value is stored.

Version 0.4.0 (Published on 04 Oct 2013 - Upgrade):
List of changes:
  • Further enhancement from UAT testing feedback
  • Addition of XCC User guide in Download section
  • Further error checking corrections

Version 0.3.0 (Published on 04 Oct 2013 - Upgrade):
List of changes:
  • Further enhancement from UAT testing feedback
  • Error checking of input parameters - corrections.
  • Input tips updated and improved
  • Additional U-value calculators added
  • Link to SEDBUK database added
  • Table of heat loss by element (wall/floor/etc.) added to results page

Version 0.2.0 (Published on 04 Oct 2013 - Upgrade):
List of changes:
  • Run calculation dynamically connected to BRE XCC calculation engine
  • Reporting page enhanced with graphic reports
  • Data input parameters' page enhanced navigation with cookie driven collapse/expand functionalities
  • Correction of interface handling of Room Data - Removal of unused items
  • Functionality to add more rooms to Room Data
  • Error checking of input parameters - corrections on fuel data

Version 0.1.1 (Published on 15 Sep 2013 - Upgrade):
List of changes:
  • Basic functionality
  • Setting total floor area and dwelling volume also as input, rather than calculated, parameters.
  • Ventilation heat loss calculation to utilise air changes per hour instead of the standard SAP methodology.
  • Saving and reporting parameters as part of the living area, rest of the dwelling, and whole dwelling.
  • Calculating and reporting the annual energy consumption by alternative heating systems.
  • Calculating and reporting the annual fuel cost by the alternative heating systems.
  • Calculating and reporting the annual CO2 emissions by each of the alternative heating systems.
  • Calculating and reporting the SAP rating and band for the dwelling with the alternative heating systems.

Version 0.1.0 (Published on 05 Sep 2013 - Major):
List of changes:
  • Site creation