DuraVent FasNSeal Flex 4" x 40' Stainless Steel Custom Flex Length 3in Apart from these safety is

Apart from these safety is very important

the system requires a 12” B-vent chimney

Fire Pan Material: 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel Burner Material: 304 Stainless Steel 304 Stainless Steel 304 Stainless Steel Overall Dimensions: 60" W x 36" D x 24" H 60" W x 36" D x 24" H 60" W x 36" D x 24" H Certification: LC Certified None

018" thick G90 Steel for sizes 3" to 14" diameter Diameter 6" to 12" Height 8

DuraVent FasNSeal Flex 4" x 40' Stainless Steel Custom Flex Length 3in Apart from these safety isMade 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