ISO 13675:2013 is the general standard on generation by combustion sub-systems (boilers) for oil, gas, coal and biomass burning.
It specifies the
- required inputs,
- calculation method, and
- resulting outputs
for space heating generation by combustion sub-systems (boilers) including control.
ISO 13675:2013 is also intended for the case of generation for both domestic hot water production and space heating.