av8r wrote:Should I consider adjusting my baro to reduce the draft to closer to .04 or just leave it alone? Stove seems to burn properly, but I don't understand the implications of having too much draft (not that .07 is too much...or maybe it is...I dunno)
By: Leisure Line On: Wed Aug 01, 2007 3:01 pm
We always recommend a -.02 at low, to .05 at high. With everything taken into consideration, setting the weight on 2/3 will be a real good starting point. Make sure the stove and chimney are at operating temp. for a few hrs. This is very important for a proper setting.
gambler wrote:I asked this question of Jerry (Leisure Line) quite a while ago and he told me about .02 at idle and I could go to .05 at high fire. He also stated that with a high draft (he didn't say how high) there is a possibility of a hopper fire. I guess that if there is a high draft the stove sucks a lot of air through the hopper and can cause the coal to burn back.
I'm assuming there won't be much difference in the measurement?
coaledsweat wrote:Chimney draft needs to be checked in the stovepipe prior to the Baro if there is one. If you measure the draft before the stoves outlet it will be overfire draft and that can vary considerably from the chimney, usaully much lower. Chimney draft is what the baro is set to, nothing else.
e.alleg wrote:With the stove warmed up and the stoker running, strive for .03 over the fire and .05 in the pipe. Your manual should have the exact setting, it might be .02 over the fire and .04 in the pipe, or .04 and .06 but these numbers are close. There aren't any separate adjustments for over fire or flue draft, it's best to check them both and make sure you have enough in both spots.
av8r wrote:Should I bother trying to drill and tap the stove body and measure there? I can actually get within 2" of the exhaust flange on the inside of the stove with the hole. Are these measurements close enough that I should just find something else to occupy my time?
Matthaus wrote:av8r wrote:Should I bother trying to drill and tap the stove body and measure there? I can actually get within 2" of the exhaust flange on the inside of the stove with the hole. Are these measurements close enough that I should just find something else to occupy my time?
IMO you should be OK with what you have, I have had good luck just checking the draft in the pipe, and I did a little experiment on the Keystoker in the garage. took screws out from the flange on the furnace all the way to the T on the Baro, not a whole lot of difference in draft gauge reading at each location. Since every pipe configuration will lead to different flow this test in no way reflects your conditions.. but I guess I offer it as a data point.
So bottom line, drill and tap if you are looking to continue the science project, but my feeling is you are good with what you have set up.