The required radiator output is determined by a number of parameters, including:
- The size of your sitting room.
- The age of your house (sitting room).
- Whether the house (sitting room) has been insulated since it was built (ceiling, walls, floor).
- Whether new energy-saving windows have been fitted.
As a rule of thumb usually somewhere between 30 and 100 W/m2 is required - see the examples below.
Please note that the data used in the examples is for guidance purposes only!
For more exact calculations, please contact a consultant or a heating engineer.
Houses from the 1960s which have not been insulated since being built:
Required heat approx. 100 W/m2 floor.
Houses from the 1970s or 1980s which have been insulated since being built:
Required heat 50-60 W/m2 floor.
Required heat 25-30 W/m2 floor.
Please note: Hudevad A/S does not perform heat loss calculations.
Please refer to our Hudevad Radiator Guide for further information.