Gas Furnace Vent Above Roof

All gas furnaces must be vented to allow exhaust gases from the combustion process to escape.
Gas furnace vent above roof. That s because the combustion byproducts are in a liquid form so they need to be drained out of your home in a similar way that the condensation from your air conditioner is drained outside. A gas vent shall terminate in accordance with one of the following. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. Vents must be tall enough so burned gases exit above a roof line and cannot filter back into a house.
The different types of venting. Vents can also be terminated above the roof. The vent pipe or flue is a vital component of the furnace that transmits emissions from the combustion process out of the building. Always replace a gas furnace s roof vent with a compatible flue pipe storm collar and termination cap.
Metal b vent chimney clearance distances above and on the roof. Above the roof surface with a listed cap or listed roof assembly. This article series describes b vent metal chimneys used for gas fired appliances. Well making sure that you choose the right venting style will protect them.
The inner liner carries the furnace s exhaust fumes outside and the outer liner insulates and protects the inner liner. It s made of zinc coated galvanized steel for durability and reliability. When we are talking about gas furnace vent pipe code we need to talk about the different types of the vents first after all you want to keep your family safe from harm. A gas furnace uses a double wall flue pipe for its vent.
Clearance distances are given for a gas appliance b vent at the rooftop. Goose neck vent the master flow 6 in. We discuss fire safety fire clearances and other gas appliance venting details for b vent chimneys. This vent is designed to be used on 6 in.
The master flow 6 in. If your furnace has an afue rating of 90 percent or above it will have a flue pipe that goes out of the side of your house. For many homes a gas furnace is the preferred heating device it has proven to be an efficient and reliable way of meeting household heating needs over the years.