dlj wrote:I like things as airtight as possible. I don't like using the check damper, I like the exhaust side as tight as possible also, never know when you might get a back draft. I like not having smoke come out the back of my stove. With the base heaters, I feel you can never have too much draft. I'm sure there is a limit there, but I've never reached it on any chimney set up I've ever had, and I've had some pretty high drafting chimneys. Sorry - don't have numbers, never measured draft on any of my chimneys.
If you're referring to manometer readings DJ, I have one on my 111, (manometer), and even if my check damper is wide open, it doesn't change the reading on my manometer. Some of our members mentioned that the reason is because of the location of the check damper relative to the sensing tube location for the manometer. I'm a little blurry on that explanation, but can kinda
see it. But initially I would think that bleeding off any draft down below would lessen the pull, but it doesn't appear to be the case. To be honest, I still haven't seen a need for my check damper. It always is more problematic when I forget to close it, than the benefit of it being open. Supposibly it shines when the wind is blowing, but we don't get wind that drastic here that warrants it. Still wondering about the benefits of a barometric damper installation, but haven't got the room to fit it in. (MPD is located behind the sensing tube in the photo).
As for the airtight stove, the klinker and primary damper are "relatively" tight on the G111, and would think the only time this would be an issue, is if when operating the stove at a low slow burn, with primaries adjusted to their closed settings, the stove continues to operate hotter than desired. With my stove, the issue is more of the pot ashing up and choking the air down, rather than an uncontrollably hotter fire. But then again, if my fire burned lower, maybe it wouldn't ash up as quickly? Seems like a double edged sword. guess I'm still experimenting with the perfect combination of MPD, and primary air settings, and coal size, relative to the OATS, and other variables.