This vent is designed to be used on 4 in.
Pvc furnace roof vent.
This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.
This type is an ideal alternative to natural vent systems.
This vent features a heavy duty screen which helps protect against small animals from entering your home 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.
Other aspects of high efficiency furnace venting.
This piping system incorporates two pipes of different sizes in one unit.
On one occasion a customer called us out just to paint the vent stacks on his roof black.
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.
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.
Also known as the type b this vent is operating on the natural air convection.
Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.
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 high efficiency venting system must be installed when you install the new furnace.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
The concentric vent allows both the intake for combustion air and the exhaust vent to pass through a standard roof or sidewall.
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The pvc pipes are used for air intake exhaust gas and to remove the corrosive condensation resulting from the combustion process.
The black finish helps this vent blend into your home s rooftop.
These pvc pipes are connected to the furnace and expelled outside.
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 is an alternative to the standard two pipe intake vent shown in the basic furnace installation instructions.
When the vent is withdrawing air from the house it expels the gas outside through the vent.
