{"product_id":"duravent-35-flex-pipe-length-duraflex-316-stainless-steel-basic-kit","title":"DuraVent 35' Flex Pipe Length DuraFlex 316 Stainless Steel Basic Kit","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent 35' Flex Pipe Length DuraFlex 316 Stainless Steel Basic Kit\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"787\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"59\"\u003eDuraVent 35' DuraFlex 316 Stainless Steel Basic Kit\u003c\/strong\u003e is a premium flexible chimney liner kit engineered for dependable masonry chimney relining and long-lasting venting performance. Constructed from highly corrosion-resistant 316 stainless steel, this 35-foot chimney liner system is ideal for wood stoves, fireplace inserts, solid-fuel appliances, non-condensing gas appliances, oil-fired heating systems, and coal-burning applications. Its flexible design simplifies installation through chimneys with minimal offsets while maintaining excellent flue gas flow, chimney draft, and heating efficiency. The DuraFlex 316 Basic Kit is UL 1777 and ULC S635 listed, providing a safe and code-compliant solution for professional chimney restoration projects.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"789\" data-end=\"1327\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eDesigned for superior durability, the DuraVent DuraFlex 316 stainless steel chimney liner kit helps protect masonry chimneys from heat, moisture, and corrosive combustion byproducts. This 35-foot flexible chimney liner improves appliance efficiency while supporting safer venting for residential and commercial heating systems. Ideal for chimney liner replacement, fireplace insert installation, and venting upgrades, the kit delivers reliable performance backed by DuraVent’s trusted engineering and industry-leading quality.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-1\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-1\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-1\" data-testid=\"conversation-turn-1884\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"e95f3fdc-c83a-409c-9465-c1f9fee597ad\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"0\" data-end=\"2109\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"5sxg3x\" data-start=\"0\" data-end=\"232\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"58\" data-is-only-node=\"\"\u003eDuraVent 35' DuraFlex 316 Stainless Steel Basic Kit:\u003c\/strong\u003e Complete 35-foot flexible chimney liner kit engineered for professional masonry chimney relining, fireplace insert installations, and chimney restoration projects.\u003c\/li\u003e\n\u003cli data-section-id=\"14dlmgq\" data-start=\"233\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"235\" data-end=\"280\" data-is-only-node=\"\"\u003ePremium 316 Stainless Steel Construction:\u003c\/strong\u003e Built with 316 stainless steel alloy for outstanding corrosion resistance, exceptional durability, and long-lasting chimney venting performance.\u003c\/li\u003e\n\u003cli data-section-id=\"4x9vqw\" data-start=\"432\" data-end=\"629\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"470\" data-is-only-node=\"\"\u003eAvailable in Multiple Diameters:\u003c\/strong\u003e Offered in 3\" to 8\" diameters to fit a wide range of wood stoves, fireplace inserts, solid-fuel appliances, gas appliances, and oil heating systems.\u003c\/li\u003e\n\u003cli data-section-id=\"1svx9we\" data-start=\"630\" data-end=\"817\"\u003e\n\u003cstrong data-start=\"632\" data-end=\"666\" data-is-only-node=\"\"\u003eFlexible Chimney Liner Design:\u003c\/strong\u003e Easily adapts to chimney offsets and tight spaces, simplifying installation while maintaining efficient flue gas flow and optimal chimney draft.\u003c\/li\u003e\n\u003cli data-section-id=\"1q5d8tt\" data-start=\"818\" data-end=\"978\"\u003e\n\u003cstrong data-start=\"820\" data-end=\"853\" data-is-only-node=\"\"\u003eMultiple Flex Length Options:\u003c\/strong\u003e Available in 15’, 20’, 25’, 30’, and 35’ lengths to accommodate various chimney heights and installation requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"7f76cr\" data-start=\"979\" data-end=\"1149\"\u003e\n\u003cstrong data-start=\"981\" data-end=\"1021\" data-is-only-node=\"\"\u003eIdeal for Chimney Relining Projects:\u003c\/strong\u003e Perfect for masonry chimney repair, chimney liner replacement, fireplace insert upgrades, and venting system restoration.\u003c\/li\u003e\n\u003cli data-section-id=\"14an1y4\" data-start=\"1150\" data-end=\"1308\"\u003e\n\u003cstrong data-start=\"1152\" data-end=\"1185\" data-is-only-node=\"\"\u003eImproves Chimney Performance:\u003c\/strong\u003e Helps protect chimney walls from heat, moisture, and corrosive flue gases while promoting efficient appliance operation.\u003c\/li\u003e\n\u003cli data-section-id=\"1p71zc5\" data-start=\"1309\" data-end=\"1482\"\u003e\n\u003cstrong data-start=\"1311\" data-end=\"1351\" data-is-only-node=\"\"\u003eCompatible with Multiple Fuel Types:\u003c\/strong\u003e Suitable for solid fuel, non-condensing gas, oil-fired, and coal-burning appliances requiring enhanced corrosion resistance.\u003c\/li\u003e\n\u003cli data-section-id=\"1097d0e\" data-start=\"1483\" data-end=\"1635\"\u003e\n\u003cstrong data-start=\"1485\" data-end=\"1523\" data-is-only-node=\"\"\u003eUL Listed DuraFlex Venting System:\u003c\/strong\u003e Manufactured to meet UL 1777 and ULC S635 standards for safe, code-compliant chimney liner installations.\u003c\/li\u003e\n\u003cli data-section-id=\"1u7lnm4\" data-start=\"1636\" data-end=\"1802\"\u003e\n\u003cstrong data-start=\"1638\" data-end=\"1678\" data-is-only-node=\"\"\u003eProfessional-Grade Venting Solution:\u003c\/strong\u003e Trusted DuraVent DuraFlex 316 chimney liner kit for reliable residential and commercial chimney venting applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 520px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003eFlex Length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e3DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e3\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e4DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e4\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e5DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e55DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5.5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e6DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e6\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e7DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e7\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e8DF316-35K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e8\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e35 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eMaterials\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003e316 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003eSingle-Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003e0” clearance for gas, oil, and pellet applications.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003e1” clearance to masonry for wood-burning\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eListings\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003eListed to UL 1777 and ULC S635 (MH45609).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"width: 372px;\" colspan=\"2\"\u003eLimited-lifetime warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraFlex_Catalog.pdf?v=1652650777\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eProduct Catalog\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraFlex_Installation_Manual.pdf?v=1652650795\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eInstruction Manual\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"15 \/ 3\"DF316 35 Kit","offer_id":53631911002403,"sku":"3DF316-35K","price":1153.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 4\"DF316 35 Kit","offer_id":55331975233827,"sku":"4DF316-35K","price":1331.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5\"DF316 35 Kit","offer_id":55331975266595,"sku":"5DF316-35K","price":1677.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5.5\"DF316 35 Kit","offer_id":55331975299363,"sku":"5.5DF316-35K","price":1811.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 6\"DF316 35 Kit","offer_id":55331975332131,"sku":"6DF316-35K","price":1962.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 7\"DF316 35 Kit","offer_id":55331975364899,"sku":"7DF316-35K","price":2239.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 8\"DF316 35 Kit","offer_id":55331975397667,"sku":"8DF316-35K","price":2355.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-35_-Flex-Pipe-Length-DuraFlex-316-Stainless-Steel-Basic-Kit-DuraVent-Dreamwood-Living-26054321.jpg?v=1780434835","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-35-flex-pipe-length-duraflex-316-stainless-steel-basic-kit","provider":"Dreamwood Living","version":"1.0","type":"link"}