{"product_id":"duravent-durachimney-ii-10-firestop","title":"DuraVent DuraChimney II 10\" Firestop","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv class=\"product__title\"\u003e\n\u003ch3\u003eDuraVent DuraChimney II 10\" Firestop\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-27\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-1018\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-27\" data-turn-id=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-27\" dir=\"auto\" 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)))]\"\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 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\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv 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-message-model-slug=\"gpt-5-3-mini\" dir=\"auto\" data-message-id=\"37b42adf-c41d-478b-9f76-c252be8222be\" data-message-author-role=\"assistant\"\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-end=\"526\" data-start=\"0\"\u003eThe \u003cstrong data-end=\"43\" data-start=\"4\"\u003eDuraVent DuraChimney II 10\" Firestop\u003c\/strong\u003e is a premium factory-built chimney system component designed to provide essential fire safety protection where the chimney passes through floors or ceilings. Ideal for wood-burning fireplaces, stoves, and solid-fuel venting systems, this firestop is part of the trusted DuraChimney II double-wall chimney system, offering a lightweight, unitized design that eliminates field assembly for faster and more efficient installation in residential and commercial applications.\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1148\" data-start=\"528\"\u003eEngineered for safety and performance, the DuraChimney II firestop maintains required clearance and helps prevent heat transfer to surrounding building materials. Its double-wall, air-cooled design ensures the chimney stays cooler on the outside while maintaining a strong internal draft for optimal venting efficiency. The system accommodates thermal expansion under high temperatures for long-term durability. UL 103 listed, it is tested for continuous operation at 1000°F, one hour at 1400°F, and ten minutes at 1700°F, delivering dependable, code-compliant chimney fire protection and safety.\u003c\/p\u003e\n\u003csection data-turn=\"user\" data-testid=\"conversation-turn-1019\" data-turn-id-container=\"3f065cf3-70dd-4775-854e-de62e6703220\" data-turn-id=\"3f065cf3-70dd-4775-854e-de62e6703220\" dir=\"auto\" 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-(--sticky-padding-top)\"\u003e\u003c\/section\u003e\n\u003ch3 data-is-intersecting=\"true\" data-turn-id-container=\"3f065cf3-70dd-4775-854e-de62e6703220\"\u003eFeatures\u003c\/h3\u003e\n\u003cdiv data-is-intersecting=\"true\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-28\" class=\"\"\u003e\n\u003csection data-turn=\"assistant\" data-testid=\"conversation-turn-1020\" data-turn-id-container=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-28\" data-turn-id=\"request-6a43b619-0ba0-83e9-8ec8-3118c3ecac8e-28\" dir=\"auto\" 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)))]\"\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 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\" data-conversation-screenshot-content=\"\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv 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-message-model-slug=\"gpt-5-3-mini\" dir=\"auto\" data-message-id=\"7e095f53-0f99-4192-a284-5edc86e94f75\" data-message-author-role=\"assistant\"\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-is-only-node=\"\" data-is-last-node=\"\" data-end=\"1423\" data-start=\"0\"\u003e\n\u003cli data-end=\"244\" data-start=\"0\" data-section-id=\"19jjez2\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"79\" data-start=\"2\"\u003eDuraVent DuraChimney II 10\" Firestop – \u003c\/strong\u003eEssential Chimney Safety Component: Designed for the DuraChimney II factory-built double-wall chimney system, ideal for wood-burning fireplaces, stoves, and solid-fuel venting installations.\u003c\/li\u003e\n\u003cli data-end=\"453\" data-start=\"245\" data-section-id=\"kls9d3\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"301\" data-start=\"247\"\u003eCritical Ceiling and Floor Penetration Protection:\u003c\/strong\u003e Used in ceiling and floor penetrations above the fireplace, providing essential fire safety where the chimney passes through building structures.\u003c\/li\u003e\n\u003cli data-end=\"652\" data-start=\"454\" data-section-id=\"1aeya7u\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"498\" data-start=\"456\"\u003eUnderside Ceiling Installation Design:\u003c\/strong\u003e Engineered to fit securely on the \u003cstrong data-end=\"561\" data-start=\"533\"\u003eunderside of the ceiling\u003c\/strong\u003e, ensuring proper alignment and compliance with chimney system installation requirements.\u003c\/li\u003e\n\u003cli data-end=\"851\" data-start=\"653\" data-section-id=\"jjl1wb\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"700\" data-start=\"655\"\u003eSupports UL-Listed Chimney System Safety:\u003c\/strong\u003e Helps maintain safe clearances and supports compliance with\u003cstrong\u003e \u003c\/strong\u003eUL 103 listed chimney system standards for residential and commercial installations.\u003c\/li\u003e\n\u003cli data-end=\"1016\" data-start=\"852\" data-section-id=\"15dd46z\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"888\" data-start=\"854\"\u003eRoof Penetration Not Required:\u003c\/strong\u003e A\u003cstrong\u003e \u003c\/strong\u003efirestop is not required when passing through the roof, simplifying installation planning for multi-level chimney runs.\u003c\/li\u003e\n\u003cli data-end=\"1199\" data-start=\"1017\" data-section-id=\"cesnqo\"\u003e\n\u003cstrong data-is-only-node=\"\" data-end=\"1068\" data-start=\"1019\"\u003eImproves Fire Safety \u0026amp; Structural Protection:\u003c\/strong\u003e Helps prevent heat transfer to surrounding framing materials, enhancing overall chimney fire safety and building protection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100.036%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 53.6594%;\"\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003e10DCA-FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003eDuraChimney II (8\" - 16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003eFirestop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003e10\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003e\u003cspan\u003e19 5⁄8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 46.1249%;\"\u003e\u003cstrong\u003eB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 53.6594%;\"\u003e\u003cspan\u003e13 3⁄8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\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\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eDownloads\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraChimney_II_Catalog_1.pdf?v=1645065033\" target=\"_blank\"\u003eProduct Catalog\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/L180_820003154_Install_Instructions_DuraChimney_II_8ef4e6d5-e904-4461-a96c-5c449db6c52e.pdf?v=1645064861\" target=\"_blank\"\u003eInstallation Product\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraChim_Typical_Installation.pdf?v=1649640543\" target=\"_blank\"\u003eTypical Installations\u003c\/a\u003e\u003ca href=\"https:\/\/usfireplacestore.com\/pages\/ca-prop-65-warning\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"Default Title","offer_id":55306072785187,"sku":"10DCA-FS","price":96.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/DuraVent-DuraChimney-ll-Firestop-DuraVent-Dreamwood-Living-26097094.jpg?v=1780435057","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-durachimney-ii-10-firestop","provider":"Dreamwood Living","version":"1.0","type":"link"}