How do I choose the output of the heating appliances for my home?

How do I choose the output of the heating appliances for my home?

We recommend that you allow for appliances with 100 W/m² (e.g. for a 15 m² bedroom, 1500 W will be sufficient). However, if the building is insufficiently insulated, this value will not be enough. In France or Scandinavia, the value can drop to 55 W/m² for new housing (accounting for the insulation quality of the building and specific calculations carried out by a specialised engineering firm).