Charles Seifert and Gareth Bridgman Credited in CIBSE Manual

Charles and Gareth have been credited in CIBSE’s Application Manual, ‘Heat pump installations for multi-unit residential buildings’.

By law, the UK has committed to reduce its greenhouse gas emissions to net zero by 2050. In order to meet this goal, much building stock will become ‘all-electric’ – heated by electricity as well as being cooled, lit and powered by it.

Heat pumps are the most efficient way to generate heat from electricity and have a crucial role to play in the transition to net zero, particularly in the residential sector where traditionally their market penetration has been low. This Application Manual provides guidance on the design and installation of heat pump systems for high-density developments, such as medium- and high-rise apartment buildings, care homes and student accommodation, including existing buildings.

It also covers the full life cycle, including installation, commissioning, operation, maintenance and decommissioning. Cost is always a key project driver – perhaps more so in residential construction than many others – and guidance on relative capital, energy and maintenance costs is included to help designers keep a weather eye on their client’s investment and the homeowners’ bills.

Heat pumps will be a big part of our future and SAY have ensured they are primed to provide the most up to date advice on these complex and potentially expensive systems. We are delighted that our industry-leading heat set-up advice has been recognised by CIBSE. SAY work closely with our clients to ensure that they are optimised the set-up and management of all new enquiries.

If you would like more information about our heat set-up services, please contact Charles by emailing

The full report is available to read here.