Your browser is no longer supported

For the best possible experience using our website we recommend you upgrade to a newer version or another browser.

Your browser appears to have cookies disabled. For the best experience of this website, please enable cookies in your browser

We'll assume we have your consent to use cookies, for example so you won't need to log in each time you visit our site.
Learn more

Appendix Q launches new section

SAP Appendix Q has launched a new section covering waste water heat recovery systems.

SAP is the underlying methodology to calculate carbon dioxide emissions and is used to demonstrate compliance with Building Regulations for Dwellings – Part L.

Appendix Q is designed to reward innovative manufacturers by testing and listing energy efficient products that can assist developers in meeting their target emission rates.

In this way, developers can identify those systems which offer an improved SAP rating over and above the default product types.