New in May 2026

Heatpunk UK has been updated to enact various MCS changes to operating temperature and air change rates. 

 

 

 Operating temps for post-2006 buildings have been increased in almost all rooms . 

 Air change rates now default to 0.5 for all rooms except internal . 

 Using the standard ventilation method now uses a fixed default air permeability of 12 m³/h.m² @ 50 Pa rather than using an occupancy-based estimator as before .