I see. I received the 70 w / m2 as a standard number based on buildinglaws in my country. It means that it can maintain its temperature at minus -10 celcius outside. Nevertheless your sharp and i'll reread the information.
For now lets assume i'll just need the 2.8 kW's in capacity. And my...
I would like to broaden my theoretical understanding by using an simplified example:
There is a building containing one room with a floor surface of 40 m2 which needs exactly 2.8 kW’s to maintain its room temperature while outside temp is -10 celcius (The heat-loss of the house is 70 Watt / m2...