Golden Baronet of the Realm
You probably want a stove/hearth designed to actually efficiently heat shit. I knew a guy who used a Russian fireplace design for his off the grid spot. Was centralized in the house and made of stones. Idea is the fire also heats the stones, which will continue to radiate heat for a longer time than metal. He also used geothermal for water heating and had solar/wind turbine for power generation.