Furnace Flue Height Above Roof

So take the top number of your roof pitch and multiply it by 10 then add 24 note example 1.

Furnace flue height above roof. Back to our example over a run of 10 feet the roof would rise 40 inches. Notes to the table above 1 measure on the up roof or shorter height side of the chimney 2 watch out. Additionally per our rule we need to add 2 feet or 24 inches giving us a total height of 64 inches. 2 above the roof.

Vents must be tall enough so burned gases exit above a roof line and. Table of type b vent rooftop clearance requirements. 5 above the flue collar e g. Vent caps 12 and smaller may terminate a distance above the roof if 8 feet or more away from a vertical surface as follows.

Water heater installed close to the roof framing would need at least 5 long vertical vent pipe. The 1992 vent sizing tables require that all type b gas vents terminate above the roof with a listed cap or listed roof assembly in accordance with the manufacturer s instructions. This is a bit of an odd measurement and chimney clearance case because the chimney side is actually about 8 away from the roof edge. 2 higher than building withing 10 chimney chimney flue must terminate min.

All gas furnaces must be vented to allow exhaust gases from the combustion process to escape. Chimney chimney flue must terminate min. How to vent a furnace in a roof.