The power required for a surface heating application is depending on the geographical position and local variations.
Guiding principles (for Sweden)
– South Sweden: 200 – 300 W/m².
– Central Sweden: 250 – 350 W/m².
– Northern Sweden: 300 – 400 W/m².
The local variations can for example be: the surface that is to be kept clear is exposed to strong winds, snow drifts in or you want a rapid heating up.