{"product_id":"duravent-durachimney-ll-firestop-2","title":"DuraVent DuraChimney ll Firestop","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent DuraChimney II 12\" Firestop\u003c\/h3\u003e\n\u003cp data-start=\"0\" data-end=\"526\"\u003eThe \u003cstrong data-start=\"4\" data-end=\"43\"\u003eDuraVent DuraChimney II 12\" 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-start=\"528\" data-end=\"1148\" data-is-last-node=\"\" data-is-only-node=\"\"\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\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"19jjez2\" data-start=\"0\" data-end=\"244\"\u003e\n\u003cstrong data-start=\"2\" data-end=\"79\" data-is-only-node=\"\"\u003eDuraVent DuraChimney II 12\" 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-section-id=\"kls9d3\" data-start=\"245\" data-end=\"453\"\u003e\n\u003cstrong data-start=\"247\" data-end=\"301\" data-is-only-node=\"\"\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-section-id=\"1aeya7u\" data-start=\"454\" data-end=\"652\"\u003e\n\u003cstrong data-start=\"456\" data-end=\"498\" data-is-only-node=\"\"\u003eUnderside Ceiling Installation Design:\u003c\/strong\u003e Engineered to fit securely on the \u003cstrong data-start=\"533\" data-end=\"561\"\u003eunderside of the ceiling\u003c\/strong\u003e, ensuring proper alignment and compliance with chimney system installation requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"jjl1wb\" data-start=\"653\" data-end=\"851\"\u003e\n\u003cstrong data-start=\"655\" data-end=\"700\" data-is-only-node=\"\"\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-section-id=\"15dd46z\" data-start=\"852\" data-end=\"1016\"\u003e\n\u003cstrong data-start=\"854\" data-end=\"888\" data-is-only-node=\"\"\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-section-id=\"cesnqo\" data-start=\"1017\" data-end=\"1199\"\u003e\n\u003cstrong data-start=\"1019\" data-end=\"1068\" data-is-only-node=\"\"\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%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 61.3671%; height: 19.5938px;\"\u003e\u003cstrong\u003eDetails\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: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eItem Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003e12DCA-FS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003eDuraChimney II (8\" - 16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003eFirestop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eA\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003e\u003cspan\u003e21 5⁄8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 35.7757%; height: 19.5938px;\"\u003e\u003cstrong\u003eB\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 61.3671%; height: 19.5938px;\"\u003e\u003cspan\u003e15 3⁄8\"\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0100\/7917\/4734\/files\/DuraChim_Typical_Installation.pdf?v=1649640543\" target=\"_blank\"\u003eTypical Installation\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"Default Title","offer_id":55306457121059,"sku":"12DCA-FS","price":101.0,"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-ll-firestop-2","provider":"Dreamwood Living","version":"1.0","type":"link"}