You are right pvc is not the best in sun for my area in desert south west i do not know why builders use it but they do.
Pvc roof vent pipe.
Cut the existing pvc vent pipe 16 inches above the second floor subfloor with a handsaw.
Hold the pipe above the.
Measure from the.
This is an alternative to the standard two pipe intake vent shown in the basic furnace installation instructions.
But does not specify material.
Apply a uniform coat of pvc.
Pvc base vent pipe flashing with adjustable rubber collar in black model 81720 4 38 4 38.
Set your store to see.
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.
Gibraltar building products 5 75 in.
Free delivery with 45 order.
Product overview the concentric vent allows both the intake for combustion air and the exhaust vent to pass through a standard roof or sidewall.
Pvc abs and galvanized have all been used.
The vertical louvers in its inner cylinder keeps out insects birds and animals as well allowing optimal air flow.
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.
Inside diameter black new construction or reroof thermoplastic vent pipe roof flashing model pb 312 4bk 19 97 19 97.
National international plumbing codes identify vent pipe size length above the roof flashing and caps.
It continually exhausts air with no moving parts while preventing rain and snow from entering.
Touch up the burrs from the saw on the top of the 16 inch section with a sanding block.