Use of PolyPro Single-Wall Approved For Navien NPE Water Heater Series

Date: Oct 25, 2013

Adobe Acrobat Document Press Release

Vacaville, CA – M&G DuraVent announced today that it has obtained approval for the use of PolyPro Single-Wall for Navien’s NPE Water Heater Series. Models include NPE-180S, NPE-210S, NPE-240S.

Navien NPE Water Heater: The Navien NPE series has become the industry leader for condensing tankless technology. They feature advanced condensing technology to achieve efficiencies up to .98 EF; 1/2” gas pipe capability with 199K Bth/h products up to 24’; dual stainless steel heat exchangers; cascading capability for more than 4 units without a separate controller; and ComfortFlow technology. There are fewer callbacks, longer life, and faster heating.

PolyPro: 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 and factory-built chimneys. The product is also 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, which were designed for irrigation, not venting. PolyPro has been successfully venting appliances in Europe for over 15 years.

About M&G DuraVent
M&G DuraVent is a recognized technological leader in the venting industry. All M&G companies, including DuraVent, exclusively develop, manufacture and market a wide range of flue and vent products in aluminum, stainless steel and plastic for the HVAC and hearth industry. M&G is the largest supplier of engineered venting systems for the high-efficiency heating market in Europe for 20 years. For more information, please visit

About Navien
Navien has achieved international recognition for its sophisticated engineering and robust designs. Backed by more than thirty years of experience with advanced water heating technology, Navien will continue its mission to provide high quality product that are beneficial to both customers and the environment.

To learn more about this approval, please contact
M&G DuraVent
Tim Rothgeb, VP of Commercial and OEM Sales
Office: (800) 835-4429