{"product_id":"duravent-duraliner-6-x-20-oval-extend-a-cap-kit","title":"DuraVent DuraLiner 6\" Oval Extend-A-Cap Kit","description":"\u003cdiv class=\"product__title\"\u003e\n\u003ch3 style=\"text-align: center;\"\u003eDuraVent DuraLiner 6\" Oval Extend-A-Cap Kit\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp data-start=\"0\" data-end=\"574\" class=\"PDq2pG_selectionAnchorContainer\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"51\"\u003eDuraVent DuraLiner 6\" Oval Extend-A-Cap Kit\u003c\/strong\u003e is a premium chimney liner termination kit designed to provide safe, efficient venting for wood-burning stoves, fireplace inserts, and high-heat heating appliances. As part of the advanced DuraLiner chimney liner system, this oval extend-a-cap kit helps protect masonry chimneys from damaging flue gases while creating a secure, weather-resistant termination at the top of the chimney. It is an ideal solution for masonry chimney relining projects requiring a durable and professional chimney cap assembly.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"576\" data-end=\"1229\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eBuilt to complement DuraVent’s factory-insulated DuraLiner venting system, the 6-inch Oval Extend-A-Cap Kit supports zero\/zero clearance installations without the need for additional spacers or field-installed insulation. Its smooth venting path helps reduce creosote buildup, promoting improved airflow and easier maintenance. Designed to reduce installation labor by 50% or more, DuraLiner delivers dependable, code-compliant performance for demanding wood-burning applications. Approved for use in both the USA and Canada, this chimney termination kit provides lasting protection, reliable draft performance, and long-term durability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-7\" 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-7\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-7\" data-testid=\"conversation-turn-1410\" 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=\"a61dc970-13a2-4cf3-a239-ded4e2d4be74\" 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\u003cul data-start=\"0\" data-end=\"1449\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"19z3epe\" data-start=\"0\" data-end=\"203\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"50\" data-is-only-node=\"\"\u003eDuraVent DuraLiner 6\" Oval Extend-A-Cap Kit:\u003c\/strong\u003e Premium oval chimney liner termination kit designed for safe, weather-resistant vent termination of wood-burning stoves and fireplace inserts.\u003c\/li\u003e\n\u003cli data-section-id=\"1onroaf\" data-start=\"204\" data-end=\"387\"\u003e\n\u003cstrong data-start=\"206\" data-end=\"246\" data-is-only-node=\"\"\u003eTop-of-Chimney Termination Solution:\u003c\/strong\u003e Specifically designed to terminate DuraLiner at the top of a masonry chimney, creating a secure and professional chimney liner finish.\u003c\/li\u003e\n\u003cli data-section-id=\"1n4c9k8\" data-start=\"388\" data-end=\"556\"\u003e\n\u003cstrong data-start=\"390\" data-end=\"433\" data-is-only-node=\"\"\u003eCompatible with DuraLiner Vent Systems:\u003c\/strong\u003e Engineered for seamless use with DuraVent DuraLiner chimney liner components to ensure reliable venting performance.\u003c\/li\u003e\n\u003cli data-section-id=\"8ddy0o\" data-start=\"557\" data-end=\"716\"\u003e\n\u003cstrong data-start=\"559\" data-end=\"593\" data-is-only-node=\"\"\u003eProtects Chimney Liner System:\u003c\/strong\u003e Helps guard the chimney liner against rain, debris, and outdoor elements, extending the life of your venting system.\u003c\/li\u003e\n\u003cli data-section-id=\"3c3r2v\" data-start=\"717\" data-end=\"909\"\u003e\n\u003cstrong data-start=\"719\" data-end=\"756\" data-is-only-node=\"\"\u003eSupports Safe Wood Stove Venting:\u003c\/strong\u003e Maintains efficient airflow and dependable draft performance for wood-burning appliances, fireplace inserts, and masonry chimney relining systems.\u003c\/li\u003e\n\u003cli data-section-id=\"5yn9c9\" data-start=\"910\" data-end=\"1051\"\u003e\n\u003cstrong data-start=\"912\" data-end=\"940\" data-is-only-node=\"\"\u003eDurable Chimney Cap Kit:\u003c\/strong\u003e Built for long-lasting durability in demanding residential chimney venting and restoration applications.\u003c\/li\u003e\n\u003cli data-section-id=\"gfgb9n\" data-start=\"1052\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1054\" data-end=\"1098\" data-is-only-node=\"\"\u003eProfessional Chimney Relining Accessory:\u003c\/strong\u003e Ideal for\u003cstrong\u003e \u003c\/strong\u003echimney restoration projects, fireplace insert installations, and complete DuraLiner vent system upgrades.\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: 100%; height: 137.157px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 63.0887%; height: 19.5938px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003eDuraVent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003e6DLR-KXC20, 6DLR-KXC22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003e6\" DuraLiner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003eExtend-A-Cap Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003e13\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 34.0541%; height: 19.5938px;\"\u003e\u003cstrong\u003eB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 63.0887%; height: 19.5938px;\"\u003e20\", 22\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch3\u003eWarranty\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLimited Lifetime Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDocuments \u0026amp; Files\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0813\/8725\/8148\/files\/L703_810007526_Brochure_DuraLiner_03-24-20_V3_Web.pdf?v=1695779393\" target=\"_blank\"\u003eProduct Brochure\u003c\/a\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0813\/8725\/8148\/files\/DV_DL_CT-001E_04-23.pdf?v=1695779467\" target=\"_blank\"\u003eDuraLiner Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0813\/8725\/8148\/files\/L402_820003162_Install-Instructions_DuraLiner.pdf?v=1695779526\" target=\"_blank\"\u003eInstallation Instructions\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0813\/8725\/8148\/files\/L4020_820016191.pdf?v=1695779571\" target=\"_blank\"\u003eMasonry Thimble L402 Installation Instruction Addendum\u003cbr\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"(oval 13\" x 20\")","offer_id":55314616156451,"sku":"6DLR-KXC20","price":509.0,"currency_code":"USD","in_stock":true},{"title":"(oval 10\" x 22\")","offer_id":55314616189219,"sku":"6DLR-KXC22","price":460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-DuraLiner-6_-x-20_-Oval-Extend-A-Cap-Kit-DuraVent-Dreamwood-Living-26000682.jpg?v=1780434636","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-duraliner-6-x-20-oval-extend-a-cap-kit","provider":"Dreamwood Living","version":"1.0","type":"link"}