Add Allentown to your signature, where you have your stove listed.
Hopefully someone in the area will be able to help.
I like people to have a full time manometer, they cost about ~$35, with a full time meter monitoring your draft, you can see
a clogged flue pipe from accumulated fly ash, BEFORE the CO alarm goes off..
OH< you do have at least 2 Carbon Monoxide alarms in the house, right?? CO alarms are very important with coal, the CO will
not be accompanied by a lot of stink of creosote or smoke like a problem with a wood fire, so the alarms are mandatory.
With a 40' chimney, it should just about suck your toupe off your head as you walk by the chimney !!
, so once the
chimney is warm it should need a Baro, NOT a draft inducer.
What i meant by 'prefab' is one of the insulated or tripple wall Stainless Steel chimney systems. What you have is the best there is
for burning coal.. but 5 " is an odd size, I susppect it's a 6" square terracotta liner in the block chimney, it should have lots of draft.
If you hold a candle, cigarette, inscence stick, something to generate smoke, near the baro, and push the door open, with the Draft
inducer off, does the flame/smoke get drawn into the flue pipe? DO you have a cap on the chimney? sometimes they get clogged with
leaves or birds nests, or hornets nests. and cause the chimney to stop drawing. another reason to have a full time manometer.
Check out the manometer thread for links to full time retailers that carry them. MAKE SURE you get the one recommended. It's
scale is from -.05 to +.3. your normal readings will be in the .03-.05 range, so you want an expanded scale, so you are seeing a reading
wider than a pencil mark..