Furnace Vent Pipe Through Metal Roof

That depends on whether you have a standard efficiency or a high efficiency furnace.

Furnace vent pipe through metal roof.

This home has a gas furnace with a vent pipe through the roof. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. However these combustion gases contain residual heat that is lost through the ventilation. This is how i installed my dwv drain waste vent pipe through my metal roof.

The master flow 6 in. When the vent is withdrawing air from the house it expels the gas outside through the vent. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. 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.

For pricing and availability. You can capture that heat with a high efficiency condensing furnace. Also known as the type b this vent is operating on the natural air convection. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl. Be sure to subscribe. The vent pipe is about 8 10 in diameter.

The furnace uses an exhaust vent motor that pushes the exhaust gas through the vent pipe creating a positive static pressure in the vent. This vent is designed to be used on 6 in. I am installing a new roof on an existing home. 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.

What would be the best way to flash around this vent. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. The steel roofing is r panel profile. The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber.

It s made of zinc coated galvanized steel for durability and reliability. Below are some links to the tools i used on this project. The condensing furnace produces condensed exhaust gases that contain water and carbon dioxide which together form carbonic acid that results in a corrosive condensate.