Calculate your heat demand

With the heat demand calculator you can calculate the heat demand based on your room specifications or determine the heat demand based on your current radiator. This helps you to find the right Purmo radiator for your home.

This calculator is for informational purposes only. Always consult a professional installer to get the exact calculation before buying the radiator.

Calculation of heat demand

I want to calculate the heat demand in my room, based on:


 Room Existing radiator