Calculates Watts required based on the size of the room.

* Internal temperature request 20 ° C

Measurements of the room

Information on the room



Filter based on the radiators

WARNING: Estimating the heat requirement of a room or building is a complicated calculation that must take into account many specific factors. The IRSAP calculator only provides an indicative estimate of the Watts needed to heat the environment and does not in any way replace a calculation made by a qualified heating engineer.