imaddicted2u wrote:[quote="Rigar"]re read ur first post...
you got a good deal on ur draft guage..??
is it used ??-more importantly....is it working accurately?
The good deal was for a brand new Dwyer manometer as shown in the pic. I got it on ebay.
The draft gauge is a Dwyer manometer filled with the proper gauge oil. It has been properly zero'd. Being a simple device with no moving parts, I see no reason to question its accuracy.
...just makin sure- lol
one thing at a time i guess
..thats a tall chimney...which i would think could create even better draft than ur mano indicates.
possibly it is cooling too fast/easily (is it totall exterior?)
clean out door seals up good?? good hieght over roofline??
double check the oil burner connection at thimble
one more dumb thought-- can you demand the oil boiler to fire and keep an eye on ur baro ?...you should see some movement momentarily. Initially it should close completely...
..just thinkin aloud
again...thats a tall stack...may be tough to get drafting well until its colder outside
is this a new problem btw ??[/quote]
Not a new problem. The previous owners had same issue when burning coal. There is about 5 feet above the peak of the roof. The chimney is interior.
With no fire on today the draft is showing about 0.02" outside temperature is 46F and draft regulator is closed . With a wood fire on and the baro-damper closed I've seen draft reading as high as 0.08". All pipe connections are sealed with hi-temp RTV and smoke pipes are in like new condition. I'll fire up the oil burner next time I have a wood fire on and see what the draft regulator does.
The doors seal as well as any 1957 boiler can seal...lol, given that it relies on metal to metal contact. I did glue a wood stove rope seal to the top (heat exchanger) door because the metal had deteriorated.
This boiler has two possible sources for combustion air. One is on the back and feeds air into the ash pit under the fire up through the grates, the other is through the loading door and feeds air over the fire. In time I'll figure out which combination is best to use.