DuraVent FasNSeal Flex 10" x 150' Stainless Steel Custom Flex Length d20.5 TruFlame Technology minimizes emissions while

TruFlame Technology minimizes emissions while maximizing heat efficiency to produce the most realistic flames

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ignition w/ battery backup to operate in the event of a power outage

Non-combustible Board (for full or partially recessed installation)

50-60º F temperature rise range

DuraVent FasNSeal Flex 10" x 150' Stainless Steel Custom Flex Length d20.5 TruFlame Technology minimizes emissions whileMade 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