Good insight on losing heat up the chimney. Has anyone quantified how much heat is generally lost up the chimney when burning coal? It must be less than w/wood by an order of magnitude.
rberq wrote:JRLearned wrote:... to control burn rate based on the surface temp of the stove. I'm leaning towards an electric solution, using a draft inducer fan while measuring and controlling the surface temp with a thermocouple and PID controller.
A high-tech solution to a low-tech problem. I understand why it would be hard to fit the bi-metal thermostat to a Chubby, it being round instead of square. But a draft inducer might kill stove efficiency. Most of the wiser folks on this forum use a barometric damper with a hand-fired stove, to keep draft from being too high. (Boy, am I going to get zinged now! ) So draft is perhaps .06 whether the air inlet is open a little or open a lot; you get a lot more HEAT with the inlet open a lot, of course. But if the draft is increased above optimum by the inducer, air and flue gases move through the stove too fast to give up their heat to the stove body, and a lot of heat is wasted up the chimney.