DuraVent PolyPro Twin Pipe Termination: keeps outgoing exhaust apart from incoming air
The DuraVent PolyPro Twin Pipe Termination is a wall outlet for two single wall PolyPro pipes. One brings in air for burning gas. The other sends exhaust out, keeping it separate from incoming air. It is painted black and includes a black exhaust nozzle that resists sunlight damage, a bird screen, an inside wall plate, and two 12 inch pipe lengths. Choose a 2, 3, or 4 inch size. The vent end sits at least 12 inches above the ground or usual snow level.
PolyPro is DuraVent’s polypropylene vent pipe for high efficiency condensing gas boilers, furnaces, and water heaters. This gray plastic pipe is only for condensing gas appliances. It resists corrosion from their cool, wet exhaust’s acidic drips and tolerates hotter exhaust than PVC or CPVC. Wall straps, not the appliance, carry horizontal, sloped, and vertical runs, with straps near each elbow or tee. A firestop, a barrier around the pipe opening, goes at every floor and ceiling crossing, including the attic floor but not the roof deck. Only one pipe? See the DuraVent PolyPro Single Horizontal Termination for one pipe. The DuraVent PolyPro Twin Pipe Termination ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.
Details
SKU: 2PPS-HTPC | 3PPS-HTPC | 4PPS-HTPC
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
TNewly Designed PolyPro® Locking Clamps Video
PolyPro® Double-Wall Video
Why Polypropylene? DuraVent’s PolyPro® Venting System Video