{"product_id":"duravent-25-flex-pipe-length-duraflex-304-stainless-steel-basic-kit","title":"DuraVent 25' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent 25' Flex Pipe Length DuraFlex 304 Stainless Steel Basic Kit\u003c\/h3\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-2\" 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-2\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-2\" data-testid=\"conversation-turn-1790\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto [--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=\"1fb11bbf-dc18-41d6-a066-9498c2cf9ab2\" 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\"\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\u003cp data-start=\"0\" data-end=\"711\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"59\"\u003eDuraVent 25' DuraFlex 304 Stainless Steel Basic Kit\u003c\/strong\u003e is a premium chimney liner kit designed for efficient masonry chimney relining in residential and commercial heating systems. Featuring a 25-foot flexible 304 stainless steel chimney liner, this kit is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating equipment with minimal chimney offsets. Its lightweight, flexible construction allows for fast installation while providing dependable corrosion resistance and long-lasting venting performance. The DuraFlex 304 system is UL 1777 and ULC S635 listed, ensuring trusted safety, durability, and code-compliant chimney installations.\u003c\/p\u003e\n\u003cp data-start=\"713\" data-end=\"1310\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eDesigned for professional chimney restoration and venting upgrades, the DuraFlex 304 Basic Kit promotes smooth flue gas flow while protecting masonry chimneys from heat, moisture, and corrosive byproducts. This 25-foot chimney liner kit is an excellent choice for fireplace inserts, furnaces, boilers, and oil heating systems, delivering reliable draft performance and long service life. Whether replacing an aging chimney liner or upgrading an existing venting system, this DuraVent chimney liner kit provides exceptional quality, installation flexibility, and dependable performance.\u003c\/p\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\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"1myt14k\" data-start=\"0\" data-end=\"197\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"58\" data-is-only-node=\"\"\u003eDuraVent 25' DuraFlex 304 Stainless Steel Basic Kit:\u003c\/strong\u003e Complete flexible chimney liner kit designed for professional masonry chimney relining and long-lasting vent system performance.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1hfw07v\" data-start=\"198\" data-end=\"400\"\u003e\n\u003cstrong data-start=\"200\" data-end=\"245\" data-is-only-node=\"\"\u003ePremium 304 Stainless Steel Construction:\u003c\/strong\u003e Built from 304 stainless steel to provide superior corrosion resistance, durability, and reliable chimney venting in demanding heating applications.\u003c\/li\u003e\n\u003cli data-section-id=\"mwaskw\" data-start=\"401\" data-end=\"561\"\u003e\n\u003cstrong data-start=\"403\" data-end=\"438\" data-is-only-node=\"\"\u003e25-Foot Flexible Chimney Liner:\u003c\/strong\u003e Includes a\u003cstrong\u003e \u003c\/strong\u003e25-foot flex pipe length that is ideal for medium to tall chimney installations and restoration projects.\u003c\/li\u003e\n\u003cli data-section-id=\"ue9ucb\" data-start=\"562\" data-end=\"766\"\u003e\n\u003cstrong data-start=\"564\" data-end=\"600\" data-is-only-node=\"\"\u003eAvailable in Multiple Diameters:\u003c\/strong\u003e Offered in\u003cstrong\u003e \u003c\/strong\u003e3\", 4\", 5\", 6\", 7\", and 8\" diameters to fit a wide variety of wood stoves, fireplaces, fireplace inserts, furnaces, boilers, and oil appliances.\u003c\/li\u003e\n\u003cli data-section-id=\"1e5jffc\" data-start=\"767\" data-end=\"924\"\u003e\n\u003cstrong data-start=\"769\" data-end=\"797\" data-is-only-node=\"\"\u003eMultiple Length Options:\u003c\/strong\u003e Available in 15', 20', 25', 30', and 35' lengths to accommodate different chimney heights and installation requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"7hudt0\" data-start=\"925\" data-end=\"1103\"\u003e\n\u003cstrong data-start=\"927\" data-end=\"971\" data-is-only-node=\"\"\u003eDesigned for Wood, Gas \u0026amp; Oil Appliances:\u003c\/strong\u003e Compatible with solid fuel, non-condensing gas, and oil-fired heating appliances for versatile chimney relining applications.\u003c\/li\u003e\n\u003cli data-section-id=\"yar9rj\" data-start=\"1104\" data-end=\"1264\"\u003e\n\u003cstrong data-start=\"1106\" data-end=\"1139\" data-is-only-node=\"\"\u003eImproves Chimney Performance:\u003c\/strong\u003e Enhances draft efficiency, restores aging masonry chimneys, and helps protect the flue from heat, moisture, and corrosion.\u003c\/li\u003e\n\u003cli data-section-id=\"3rd688\" data-start=\"1265\" data-end=\"1444\"\u003e\n\u003cstrong data-start=\"1267\" data-end=\"1313\" data-is-only-node=\"\"\u003eProfessional Chimney Restoration Solution:\u003c\/strong\u003e Flexible liner design allows for easier installation in chimneys with minimal offsets while maintaining efficient flue gas flow.\u003c\/li\u003e\n\u003cli data-section-id=\"h0ruf3\" data-start=\"1445\" data-end=\"1619\"\u003e\n\u003cstrong data-start=\"1447\" data-end=\"1482\" data-is-only-node=\"\"\u003eUL Listed Chimney Liner System:\u003c\/strong\u003e Part of the trusted DuraVent DuraFlex 304 product line, UL 1777 and ULC S635 listed for safe and code-compliant installations.\u003c\/li\u003e\n\u003c\/ul\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;\"\u003e3DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e3\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e4DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e4\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e5DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e55DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e5.5\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e6DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e6\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e7DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e7\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003e8DF304-25K\u003c\/td\u003e\n\u003ctd style=\"width: 178.198px;\"\u003e8\" I.D\u003c\/td\u003e\n\u003ctd style=\"width: 193.802px;\"\u003e25 ft.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eMaterials\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px;\"\u003e304 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eConstruction\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px;\"\u003eSingle-Wall\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 128px;\"\u003eClearance\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 372px;\"\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 colspan=\"2\" style=\"width: 372px;\"\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 colspan=\"2\" style=\"width: 372px;\"\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 colspan=\"2\" style=\"width: 372px;\"\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\"DF304 25 Kit","offer_id":53631908577571,"sku":"3DF304-25K","price":810.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 4\"DF304 25 Kit","offer_id":55328467747107,"sku":"4DF304-25K","price":955.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5\"DF304 25 Kit","offer_id":55328467779875,"sku":"5DF304-25K","price":1120.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 5.5\"DF304 25 Kit","offer_id":55328467812643,"sku":"5.5DF304-25K","price":1194.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 6\"DF304 25 Kit","offer_id":55328467845411,"sku":"6DF304-25K","price":1276.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 7\"DF304 25 Kit","offer_id":55328467878179,"sku":"7DF304-25K","price":1523.0,"currency_code":"USD","in_stock":true},{"title":"15 \/ 8\"DF304 25 Kit","offer_id":55328467910947,"sku":"8DF304-25K","price":1743.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-25_-Flex-Pipe-Length-DuraFlex-304-Stainless-Steel-Basic-Kit-DuraVent-Dreamwood-Living-25578732.jpg?v=1780433527","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-25-flex-pipe-length-duraflex-304-stainless-steel-basic-kit","provider":"Dreamwood Living","version":"1.0","type":"link"}