Think I've seen some of this elsewhere but not all in one place so thought I'd ask. I read that the auto stoker stoves will throttle-down to about 5,000 to 7,000 BTU's if need be and was wondering what their coal consumption is at these levels vs their consumption at max output? If the heat output reduction is because it burns less coal, well then there's the answer but if it achieves it by sending all the unused heat out the stack, then there would not be much reduction. So my questions are these:
1) for an auto stoker, a gravity feed hopper and a hand-fired stove, which is best at reducing coal consumption when you throttle them back to about 7,000 BTU output and how do these stoves achieve this heat reduction?
2) how much can you throttle-back the gravity drop and hand-held units vs the auto stokers?
3) for those with hand-feed units, do you feel you burn the same amount of coal regardless of outside temp?