MCS Heat Load CalculatorHelp Documentation

An easy-to-use heat load calculator for estimating the heating requirements of homes

BS 12831 Compliant

Complies with the BS EN 12831-1:2017 standard (Energy Performance of Buildings) for calculating design heat loads.

View British Standard

Generates heat load calculations compliant with the MCS standard for designing heat pump systems (MIS 3005-D).

View MCS Standard

Determines the U-values of building elements automatically based on their construction type and year of installation.

More information