DuraVent FasNSeal Flex 9" x 55' Stainless Steel Custom Flex Length h240 Includes insulated outside air kit

Includes insulated outside air kit (required for use)

less maintenance and high efficiency while meeting stringent EPA 2020 environmental standards for the cleanest burn possible

LED Lighting: Flame and lights use brilliant

With high-grade carbon fiber tube and advanced far infrared technology the heater features spacious warming range and 1 second fast heating

DuraVent FasNSeal Flex 9" x 55' Stainless Steel Custom Flex Length h240 Includes insulated outside air kitMade 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