Pvc Furnace Roof Vent

Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.

Pvc furnace roof vent.

Also known as the type b this vent is operating on the natural air convection. This high efficiency venting system must be installed when you install the new furnace. The concentric vent allows both the intake for combustion air and the exhaust vent to pass through a standard roof or sidewall. The outer pipe draws air for combustion from outside and the smaller pipe occupies the inner position and is used to vent the exhaust fumes.

That way should there be a problem with the furnace that causes the exhaust temperature to exceed design the exhaust vent system has almost 40 more capacity to handle the excess heat before it reaches the point where it can fail. Basic instructions on how to run pvc flue venting on high efficiency furnaces. The black finish helps this vent blend into your home s rooftop. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.

This is an alternative to the standard two pipe intake vent shown in the basic furnace installation instructions. This type is an ideal alternative to natural vent systems. More product details close. Other aspects of high efficiency furnace venting.

This piping system incorporates two pipes of different sizes in one unit. This vent is designed to be used on 4 in. When the vent is withdrawing air from the house it expels the gas outside through the vent. Acrylonitrile butadiene styrene is lighter than poly vinyl chloride and less dense it s made from a lower grade of waste petroleum by product it weakens when exposed to direct sunlight and it burns easier than poly vinyl chloride.

The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process. These pvc pipes are connected to the furnace and expelled outside. It s made of zinc coated galvanized steel for durability and reliability. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

Cvent 3 is for use with 3 in. Despite the confusion the safe practice would suggest the use of pvc schedule 40 pipes for the air intake vent on the furnace and cpvc for the exhaust flue vent given its higher service temperature.