BennyLumpkin wrote:So is a barometric or manual damper better with this application?
now that's a question that will cause of shytstorm of controversy
I will only say what i would do... id get a 12" black pipe added horizontally to that reducer and id install a simple $10.00 MPD right in the middle of it prior to installing it! at that point... you now have a MPD & Mana and you can now control her manually and as lightning says "check the primary draft controls, lower door and/or any possible cracks (another method with "dollar bill test" is to get a good fire going, open MPD, close everything else including primary knobs, then take a smoking candle or whatever and slowly run it around the lower portions of the stove and look for areas that it sucks in the smoke or causes the flame to reach into it). with all this info you can now better make a determination about the install & use of a Baro
(even if using a Baro it will be good to have that MPD their anyways!) I will also add... Harman is clueless so DO NOT listen to their instruction that forbids use of a Baro (Lightning is right... if you can benefit from one than by all means you should use one!), Harman would do well to know as much as half the coal folks on this forum
@ Lightning... "Excellent post J F Graham.."... what about me