Furnace Vent Height Above Roof

2 0 feet above the roof surface.

Furnace vent height above roof.

1 0 foot above the roof surface 1 7 12 to 8 12. Please note that this rule doesn t generally apply to pellet and gas vent systems. Vent caps 12 and smaller may terminate a distance above the roof if 8 feet or more away from a vertical surface as follows. What it means is that top of the chimney should be 3 feet above the roof surface through which it protrudes and 2 feet above anything within a 10 radius measured horizontally those are minimums.

1 5 feet above the roof surface. Roof pitch rise run in inches. How to vent a furnace in a roof. So 28 inches plus 24 inches is a chimney height of only 52 inches.

Roof pitch rise run in inchesminimum height flat to 7 12 1 0 foot above the roof surface 7 12 to 8 12 1 5 feet above the roof surface 8 12 to 9 12 2 0 feet above the roof surface. This reduces the actual required height by 12 inches from our previous calculation of 64 inches. Per the 10 and 2 rule once you are at the level of the peak you only need to be 2 feet above it. 2 5 feet above the roof surface.

Table of rooftop chimney clearances for metal b vent chimneys flues. For oil and wood burning appliances there is a very simple formula that regulates this chimney height requirement it is called 3 foot 2 foot 10 foot rule. Minimum height above the roof surface 1 flat to 7 12. The top of a chimney pipe must extend at least 2 feet above the peak of the roof if the pipe is within 10 feet of the peak.