National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit btu38225 ) in a tapered design

) in a tapered design to fit most fireplaces

UL 441 Clearances 1" Minimum clearance to combustibles for 3" - 24" Diameter 8

) x 48" (A) Listings ULC-S635M

Model # HLDS01-GTSS Material Stainless Steel Reflector 18" x 18" x 2" (H) Base Diameter 19" x 19" x 36" (H) Tank Housing Diameter 14

I would like to switch heaters off after a time period

National Chimney M-Flex 4" x 15" Stainless Steel Standard Liner Kit btu38225 ) in a tapered designM FLEX standard liner kits are used for wood, oil, coal, and gas appliances. Each of our . 006" (CB) and . 005" (CBF) standard kits comes with installation instructions and a lifetime warranty. This lining kit has been installed in venting applications since 1992 and continues to be the most popular "all fuels" kit we offer. We stock 3" 8" inside diameter (ID) as well as 6" 8" outside diameter (OD) in our . 006" (CB). What's Included 1x Installation