Answer: it is better to call in a professional given the complexity of the calculation.
Crucial step when installing a heated floor in a dwelling: calculate the heat losses, whether due to the walls of the building or the ventilation system. These calculations include many elements such as the construction materials used, heat flows, humidity, thermal bridges, adjacent rooms, living space of the dwelling, shutters, level of insulation, glass surfaces or opaque, the individual or collective nature of the accommodation, and many other elements. You will understand, this kind of evaluation is inaccessible to individuals who are not specialists in the field. This is why you will have no choice but to call a professional for a quote. You too, send us your brico question