: We even have one with 11kW (Varia FD-4S RLU) and about KfW55. Nobody will die that quickly there! It is built from masonry and stores a bit of heat, but it won’t turn into a sauna because of that.
Hmm we are not talking about a main heating system... but about some coziness on the weekend for 3-4 hours in the evening.... So far I have not found any heating inserts with 4kw that can be built in permanently or with prefabricated installation kits.....