I'm imagining a (well-insulated) firebox in which a large chunk of wood is loaded vertical, with a bed of coals at the base, fed by primary air...
I'm building a well-insulated microhouse, and want an indoor wood heater. Calculations show that I need around 1600 btu/hr at -40. An online...
Back to the original question, are there any ways to accomplish a long steady burn time with an efficient secondary burn without an expensive...