How Far Should A Flu Be Installed Above A Roof

Two things determine chimney draft.
How far should a flu be installed above a roof. Check the area where you will install the flue pipe. Jingo123 30 oct 2008 12. Far better that it goes over the roof. Personally if i was doing this install i would chose a vertical flue kit which terminates above the roof line try and take a photo of the plume.
Firstly is it ok for them to install the flu in line with my window. Run vertical pipe up through the ceiling and roof. Taller chimneys make more draft but chimneys exposed to outside cold don t. 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.
20 mar 2007 messages. Put the roof opening directly above the exhaust opening on the furnace. Cut a framing hole at least 10 inches in diameter with a jigsaw tool. 2 run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
The top of the chimney should be at least 3 ft 0 92 m above the roof surface. Vertical blue line along the left side of the chimney in our photo. 450 mm 18 in. The chimney should extend at least 3 feet above the roof surface it penetrates and 2 feet higher than any roofline or other obstacle within a horizontal distance of 10 feet.
The minimum clearance may be reduced by 50 percent to 225 mm 9 in if suitable shielding is installed either on the pipe or on the combustible surface. If the pipe is farther than 10 feet from the roof. Pull away insulation or install an insulation shield to keep the area clear around the pipe. Minimum clearance from combustible material.