Hello all, been purposely neglecting this thread, since the previous mods. I was gathering as much info as possible so the evidence I present you with isn't premature, but accurate. I've been very impatient, because since the beginning these mods have been implemented, it's been looking very positive.
If you'll remember, many of the mods listed B4 the baro were minimal in their effect. At least concerning the burn times. Since the initial stove installation (3 winters ago), my burn times, W/O tending, were tolerable the first nite or 2. But after a week or so, it wouldn't go any longer than about 4-5 hrs. I'ld awake to a coal bed, either extremely weak, or flat out dead. With the installation of the MPD last winter, I was able to keep a fire lit to 6-7 hrs, but at that time, the coal bed was mostly grey, heat exchanger temp down to 200* (or less), and required extensive cleaning and air (open ash pan door) to get the few remaining burning embers to re-light the new fallen coals.
Now, with the baro installed, my draft is rock steady at -.04. If you'll remember B4, even with the MPD fully shut, the draft was still a little high at -.06-07. So what is the benefit of having this lower draft? When I put my intake thermostat down low, (#1), my burn rate will maintain a constant lower temp better than it ever did B4. Which has now increased my burn time to "over" 10 hrs! Now I'm not going to blow any smoke and say it's still making tons of heat at this time, but the fire is still very full and bright. All it takes is a little R+R, (raking and riddling), and the temp will come back in minutes. Of course the ash pan will need M/Ting, and the hopper refilled, but I am elated that an 8 hr shut-eye is now possible. (If my bladder will cooperate.
Unfortunately, this past week, our temps were single digits, and a new problem has arisen. The baro now maintains my heat exchanger temperature to a solid 400*. The amount of heat this little stove throws, won't keep up with my 1500sq/ft, 2 story, 100 yr old, leaky farmhouse. (in these single digit temperatures.) When I would crank up the intake damper thermostat to med. or high, (2-3) it appears the baro won't allow the stove to make anymore heat. I've heard members mention blocking off the baro opening, which I did, and it allowed my draft to increase, and the stove temp would now rise. So with the stove temp at 500*, and some strategically placed fans, the room temp would also rise. Here's a pic of a temporary restriction with a "calibrated" opening to bring back a more aggressive draft of -.06. Someday, I'll make a more suitable sliding door to allow this restriction. Don't really want to keep messing with the weight on the door. It was very sensitive to the draft adjustment.
Notice the small opening at the 6 o'clock position.
So given the circumstances, if the rest of the winter follows the same pattern, I'll be pleased. For my installation, and expectations, the stove works well when the outside temps are between 15-20*, up to 40-45. Here in Southern N.E., that's mostly the average of these winters. And it's definitely saving me oil.