Have you had a chance to check out our Easy Flex PolyPro Vent System? This system is easy to install and constructed of lightweight polypropylene material. It is specially designed for category IV approved HTP appliances! This system has flexible pipe with 45 degree maximum bending radius, allowing installation flexibility to virtually any chimney.
This retro fit allows for easy conversion to high efficiency venting materials through existing chimney outlets for retro-fitted heating units. It easily snakes through the chimney and center using plastic anges.