Furnace Flue Pipe Installation

Installing a flue pipe is the most important part of the installation of your new furnace.

Furnace flue pipe installation. The size would depend on your furnace s flue pipe connection. Flue pipe is too small for the amount of combustion gases generated by the furnace. Pitch the flue pipe up toward the chimney. Use black painted flue pipes.

Flue pipe joints should overlap 30 mm 1 1 4 in each joint in the assembly must be fastened with at least three screws. You would core a hole 1 4 to 1 2 inch bigger than the outer diameter of the pipe. A flue pipe is a metal pipe that either stands alone as a chimney pipe leading from a furnace or runs inside a masonry chimney. 6 7 and 8 inch diameter flue pipes must be at least 24 gauge in thickness.

Without it smoke and other toxic materials will build up inside the house. Check the area where you will install the flue pipe. Galvanized flue pipes must not be used because the coatings vaporize at high temperatures and release dangerous gases. Run vertical pipe up through the ceiling and roof.

Cut a framing hole at least 10 inches in diameter with a jigsaw tool. The pipe then slips into the hole and is sealed with a high temperature silicone caulk. In the old masonry chimneys the tile flues can crack or break over time due to the effects of repeated heating and cooling of the air inside the chimney. These toxins can have a deadly effect.