DuraVent FasNSeal Flex 6" x 75' Stainless Steel Custom Flex Length slimline This is the best option

This is the best option if the torch will be directly connected to a gas pipe

the risk of chimney fire increases as the buildup gets thicker

Model DVCT40CSP95N Max BTU (w/both burners) 60

Note: Cannot be used with a flush mount heating application

Convenient spray application

DuraVent FasNSeal Flex 6" x 75' Stainless Steel Custom Flex Length slimline This is the best optionMade 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