DuraVent FasNSeal Flex 6" 316L Stainless Steel Coupler thermostat-vent-free-heaters 5/8-inch solid steel for durability

5/8-inch solid steel for durability

Note: if using with a vent free burner

FAST AND EFFICIENT: Advanced dual-heat system combines Infrared Quartz and PTC technologies to heat objects

Remote Control

000 BTU Flue Size 3" or 4" Efficiency 63% Hopper Capacity Up to 45 Lbs

DuraVent FasNSeal Flex 6" 316L Stainless Steel Coupler thermostat-vent-free-heaters 5/8-inch solid steel for durabilityMade 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