KingCoal wrote:here's a thought, with the fire at about 1/2 way thru your tending window ( say 6 hrs. since last tending ) open the MPD fully. set the Baro. to open at -.04, then close the MPD what ever it takes to hold -.02 / -.03 and see how you heat output and fuel use goes.
Did this first and been monitoring draft, temps, and coal use for a couple of weeks to get an idea of an average.
KingCoal wrote:if you have time and are so inclined you should install a "T" in your black pipe and install a Baro. for a while and see how it goes, then cap the "T" shut and try that a while and report back. many people will be interested in your experiences.
Now what I have experienced with the baro, set at approximately .04-.05, (need to add washers to get lower).
With the regulator set to a lower setting, MPD closed, I get 250* on the thermometer I have on the pipe between stove and MPD closed, draft does run .02 /-.03 minimal coal use as I only have to empty the ash pan every other day.
With the regulator set 2 notches higher, MPD closed, I get 400* on the thermometer and draft is at .04 and have to empty ash pan every day. Now if I want to raise the temp to 450* I open the ash door vent a little and the draft stays the same.
Now with the baro covered:
Regulator set to same lower setting, MPD closed. I get the same temps but the draft is a little higher .04, and coal use is the same.
With the regulator set same 2 notches higher, MPD closed, once again same temps 400*, draft is at .05 and coal use is the same. As above if I open the ash door vent the same I get the 450* but the draft goes to .06. However I did try to go up to 500* but draft went up to .07+ so I backed it down
So bottom line as far as performance goes with what I did above I didn't notice a negotiable difference, with the exception of pushing it to 500*. So personal preference I'm sticking with using the baro.