proper pitch to boiler vent pipe

Unknown

on the horizontal run is at the minimum 1/4 inch per foot sloping up to the masonry chimney . I like to keep it at the minimum .

Bill Stanley

Proper pitch to vent pipe from oil fired domestic boiler

Big intra office argument: Vent pipe goes vertical from top of boiler about 2 feet - horizontal about 6 feet through barometric damper to masonry chimney - system about 15 years old -is it best to A: pitch down toward boiler to assist in draft, B: pitch down to chimney to drain condensate crap into the chimney base cleanout area. C: go chicken and have the run level ??? Thanks Bill Stanley