DuraVent DuraFlex Pro 5" x 100' Stainless Steel Custom Length 61.25in 000 BTU's Glass Requirements 1/2"

000 BTU's Glass Requirements 1/2" - 3/4" Glass Media Overall Size 64" W x 33-1/2" H x 16-1/4" D Options and Accessories

Model 63010616 Clearance Zero/Zero clearance when installed into a masonry chimney and wrapped with a 1/2" ceramic fiber insulation blanket

If you have verified all the points mentioned above and your heater works fine

Consists of a 4 ft

Designed for ducted heat management

DuraVent DuraFlex Pro 5" x 100' Stainless Steel Custom Length 61.25in 000 BTU's Glass Requirements 1/2"DuraFlex Pro is the ultimate in flexible steel liners for strength and flexibility. It features 20% more stainless steel per foot compared to other liners on the market. Its extreme flexibility facilitates problem free installations where multiple offsets are needed. DuraFlex Pro is available in 3 through 12 diameters in lengths, kits and custom lengths. DuraFlex Pro is manufactured utilizing highly corrosion resistant 316 Stainless Steel. Listed to