M&G DuraVent Sets U.S. Standard For Relining Factory-Built Chimneys

Date: Mar 07, 2013

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March 7, 2013


Vacaville, CA – M&G DuraVent announced today that it has the industry’s first UL listed factory-built chimney relining system for use in the US. To date, there has never been a UL approved product standard for such installations. All M&G DuraVent UL1777 listed relining systems combined with a patent-pending termination have been approved. 


Safely relining factory-built chimney systems has been a long term industry unknown. Many factory-built chimneys were designed and installed as a system with a solid fuel burning appliance, often a “zero-clearance” fireplace. This combined system was initially installed under its own UL safety standard, typically UL127. Installing a liner within an existing factory-built chimney (not covered by any safety standard) potentially creates a number of safety issues. This can easily impair the safe operation of the existing chimney system. This mixing of systems and UL standards has been problematic, with a number of field failures. M&G DuraVent used their industry-leading test facilities and an innovative approach to systematically test these installations. M&G DuraVent has engineered a solution that exceeds UL’s stringent safety requirements and can thus bear the UL mark. This advancement will bring a new level of reliability to installations, and significantly improve safety.


A training session will be offered during the 2013 HPBA Expo in Orlando, FL. Session is open to attendees Thursday, March 14 3:00p-5:00p, Room N320GH.


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 www.duravent.com


To learn more, please contact

M&G DuraVent

Todd Lampey, VP Distribution Sales

Office: (800) 835-4429 

tlampey@duravent.com