CHIMNEY LINER INSULATION BLANKET KITS FOR 3" TO 14" DIAMETER LINERS It is strongly advised that you insulate your stainless steel chimney liner to help reduce any creosote build up. When you install your liner with our insulation, your reline job provides a 1 inch clearance and achieves UL1777 rating. These kits will fit chimney liners with a diameter of 3" thru 14". Included in your insulation kit: Premier Wrap chimney flue liner insulation blanket 1/4" thick with protective foil faced insulation wrap. 16oz can of adhesive 25', 30' or 35' roll of retractable mesh 150' rol ofl foil tape 2 S.S. clamps to secure insulation at top and bottom