When the vent is withdrawing air from the house it expels the gas outside through the vent.
Pvc furnace roof vent.
This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.
Basic instructions on how to run pvc flue venting on high efficiency furnaces.
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.
This piping system incorporates two pipes of different sizes in one unit.
Also known as the type b this vent is operating on the natural air convection.
This vent is designed to be used on 4 in.
The black finish helps this vent blend into your home s rooftop.
This type is an ideal alternative to natural vent systems.
It s made of zinc coated galvanized steel for durability and reliability.
The patented new flue cap is designed to improve air flow and eliminate excessive moisture and debris that can rust or damage high efficiency gas furnaces tankless hot water tanks plumbing or other pvc vented installations.
This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent.