DuraVent FasNSeal Flex 12" x 145' Stainless Steel Custom Flex Length h38.625 More than 4 times the

More than 4 times the copper found in any other Infrared Heater

24 Inch Outdoor Linear Fireplace Burner

There are no UV rays

Do I need to remove the flame ring in order to use Hub & Cast Iron Grill

Sealed seams ensure leakproof installation

DuraVent FasNSeal Flex 12" x 145' Stainless Steel Custom Flex Length h38.625 More than 4 times theMade from super ferritic stainless steel. Corrosion resistant. Manufactured with a sure seal locking seam for superior strength and flexibility. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency, ease of cleaning and regular maintenance. The smooth inner wall optimizes gas flow, minimizes back pressure, and facilitates condensate management. Only flexible chimney liner listed to UL 1738 standard. What's