DuraVent PolyPro Concentric Vertical Termination Extension: raises the vent outlet above deep snow or obstructions
The DuraVent PolyPro Concentric Vertical Termination Extension is an extension for the vent outlet above the roof. It raises a concentric vertical termination when deep snow or an obstruction calls for more height. A separate concentric vent length is required and does not come with the extension. Choose the size on this page: 2 by 4 inch, 3 by 5 inch, or 4 by 6 inch. The first number is the exhaust pipe size, and the second is the outer pipe size. PolyPro is DuraVent’s polypropylene vent pipe for high efficiency condensing gas boilers, furnaces, and water heaters.
Before a concentric part is shortened, its male end, the end that slides into the next part, must have a label allowing it to be cut. Without that label, leave the part uncut. In the USA, the appliance maker must list PolyPro for that appliance, and its venting instructions govern its use. In Canada, DuraVent lists PolyPro as a separate vent system. Need the roof outlet itself? See the DuraVent PolyPro Concentric Vertical Termination. The DuraVent PolyPro Concentric Vertical Termination Extension ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 2PPS-VTX | 3PPS-VTX | 4PPS-VTX
Applications
PolyPro is a polypropylene vent pipe for use with ANSI Category II and IV gas-burning appliances, including highefficiency water heaters, condensing boilers and warm air furnaces. Poly Pro is listed by Intertek to the ULC S636 standard in Canada as a Class IIA, IIB and IIC vent system suitable for exhaust temperatures up to 230°F / 110°C, and a maximum positive pressure of 15 in-w.c.
Materials and Construction
Rigid pipe constructed of 2.2mm (minimum) thick polypropylene. Flex is double-wall polypropylene. EPDM or Viton gaskets.
Clearances
General: 0″ clearance to combustibles for exhaust temperatures up to 194°F / 90°C.
Vertical Installations: 0″ clearance for vertical installations up to exhaust temperatures of 230°F / 110°C.
Horizontal Installations: ¼” / 6mm clearance to combustibles for horizontal installations at exhaust temperatures up to 230°F / 110°C.
Concentric vent system components, including Horizontal and Vertical Terminations: 0″ clearance to combustibles for exhaust temperatures up to 230°F / 110°C.
Diameters
3” (80mm) | 3” (80mm) | 4” (100mm) | 5” (130mm) | 6” (150mm) | 7” (178mm) | 8” (200mm)
Listings
Listed with the appliance in the USA, check with appliance manufacturer. Intertek / ETL listed to ULC-S636 Listed as a Class IIA, IIB, and IIC vent system.
Previously the CSA certification trademark was shown in error in conjunction with the PolyPro product – references have been removed.
Videos
Newly Designed PolyPro® Locking Clamps Video
PolyPro® Double-Wall Video
Why Polypropylene? DuraVent’s PolyPro® Venting System Video