M&G DuraVent announced today that it has gotten more key approvals for PolyPro Venting Systems. Bryant 900 series, Carrier 59 series, Day & Night 90+, Heil 90+, Keeprite 90+, Payne all 2012 models, and Tempstar 90+ furnaces have all approved the use of PolyPro single-wall, concentric, and flex with their appliances.

PolyPro is an engineered system specifically designed for venting heating appliances.  Gasketed joints require no primers or adhesives and easily assemble in seconds with just a splash of water.  Terminations are designed for superior performance in poor environmental conditions. PolyPro is tested and listed to the ULC S636 standard in Canada and rated as a Class IIA, IIB, and IIC vent system. PolyPro offers the only double-wall polypropylene flex in the U.S., making it durable for relining masonry chimneys, factory-built chimneys, and useful for relining B-vent pipe when retrofitting it to use as a chase. PolyPro is superior in performance and easier to install than PVC or CPVC pipe.  PolyPro has been successfully venting appliances in Europe for close to 20 years.