Find out how much heat your room needs

Calculate Watts needed based on room size

Room measurements

Length in meters

Depth in meters

Height in meters

Room Information

Watts

WARNING: Estimating the needs of a room or a 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 replace any way a calculation made by a qualified thermotechnician.

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