How Far Should A Flu Be Installed Above A Roof

Put the roof opening directly above the exhaust opening on the furnace.

How far should a flu be installed above a roof.

Far better that it goes over the roof. A flue pipe must never pass through a combustible floor or ceiling or through an attic roof space closet or concealed space. Taller chimneys make more draft but chimneys exposed to outside cold don t. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m.

Run vertical pipe up through the ceiling and roof. 2 run the vent pipe up through the roof and install a metal or pvc flashing collar over it. Firstly is it ok for them to install the flu in line with my window. 450 mm 18 in.

This specification makes sure steep roof slopes are cleared. Two things determine chimney draft. Vertical blue line along the left side of the chimney in our photo. The top of the chimney should be at least 3 ft 0 92 m above the roof surface.

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. Jingo123 30 oct 2008 12. 20 mar 2007 messages. Check the area where you will install the flue pipe.

Cut a framing hole at least 10 inches in diameter with a jigsaw tool. 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. Minimum clearance from combustible material. 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.