Photog200 wrote:joeq wrote:I wish I had some advice for you Randy, but I'm not familiar with "my" stove,never mind yours. I am curious about your comment with the damper behind your stove, and saying you think it's for more complete burning "after" the grates. My problem is when my grates clog with ash,(every 4-5 hrs) my fire starts to go out. If it were able to take air from above or around the grates, would it last longer? The way I see it, If it didn't pull air through the grates, the fire wouldn't burn very hot. It seems to me it would be like putting a pile of coal on the ground, and lighting it. I'm under the impression, the drafted air, being "sucked" through coal bed, is what makes it work. If your damper is above the coal bed, (not through the grates),and your grates were clogged, how would the draft fuel the fire? (maybe I'm viewing this wrong.)
What I believe the air vent/damper on the back of the stove does is just fine tune the fire. If it is getting a little to hot and you open that damper a little, it allows some air to come in through the outside of the stove where it does not pull as much through the grates. I think it also allows a bit more air to complete the combustion and burn off the gases before going up the chimney. Now, I could be wrong about that vent/damper but that is what I think it is for and that is what I was looking for clarification on. You are completely correct that the air does have to come up through the grates to have the coals burn.
Just a clarification, this damper/vent I am talking about is not the primary air intake, that does come in under the grates. This is in addition to the intake and where it is located tells me it is more for combustion before going out the chimney. However, when I opened it half way, the stove temp dropped 50° and the stack dropped 100°