Furnace Vent Pipe Through Roof

Plumbing vent pipes are connected to your drain system and are needed for water to drain properly.

Furnace vent pipe through roof. That s because the combustion byproducts are in a gaseous form so the gases can float up through the flue pipe and out of your roof. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. Running a vent pipe out of the roof takes some careful preparation. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace. It s made of zinc coated galvanized steel for durability and reliability. The condensing furnace produces condensed exhaust gases that contain water and carbon dioxide which together form carbonic acid that results in a corrosive condensate. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.

Twist the roof s vent pipe clockwise one half turn with one hand while holding the gas furnace s vent pipe still with the other hand. Locate the vertical section of furnace vent pipe that passes through the attic. Also known as the type b this vent is operating on the natural air convection. If your furnace has an afue rating of 90 percent or above it will have a flue pipe that.

Goose neck vent the master flow 4 in. The master flow 4 in. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. When the vent is withdrawing air from the house it expels the gas outside through the vent.

4 remove the metal straps that secure the upper and lower portions of the vent pipe to the roof and ceiling framing. Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. Push the male end of a new vent pipe up through the bottom of the roof flashing and set its female end on the male end of the vent pipe that connects to the gas furnace.

When water drains air must replace the space that was taken up by the water. Vent pipes provide this air by running outside the structure of the house. This vent is designed to be used on 4 in.