Tom,
I actually took the baro off on full burn and my readings stayed at .04-.05. That was just the baro and not the reducer. So I know the 7" is working good.
Hey it was 60 degree the other day before I hooked up the boiler and the draft of my chimney at the thimble would put a candle out!
I got draft baby!
Its just the flames of my fire are being sucked to the back of the firebox. Picture's I've seen on here show them going straight up.
