{"product_id":"duravent-7-duratech-11-square-ceiling-support-box","title":"DuraVent 7\" Inner Diameter - DuraTech Class A Chimney Pipe - Double Wall - 11\" Square Ceiling Support Box","description":"\u003cp class=\"fusion-responsive-typography-calculated\" data-lineheight=\"30.08px\" data-fontsize=\"16\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0011\/1670\/0732\/files\/Duravent_Logo_Authorized_Dealer_480x480_5eb43497-b25a-4f55-a68c-9360213c3d11.png?v=1703087094\" alt=\"\" width=\"258\" height=\"100\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/p\u003e\n\u003cp class=\"fusion-responsive-typography-calculated\" data-lineheight=\"30.08px\" data-fontsize=\"16\" style=\"text-align: center;\"\u003e\u003cstrong\u003eNeed a custom build chimney pipes setup that fits just right? We can custom-build your chimney pipe setup and help you plan and complete the entire build with confidence. If you have any questions, please contact us 541.678.0243\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eDuraTech Collection 7\" Class A Chimney Pipe 11\" Square Ceiling Support Box\u003c\/h3\u003e\n\u003cp\u003e\u003ci\u003e\u003cstrong\u003eWarranty Notice: M\u0026amp;G DuraVent warranty applies to this professional grade product only when installed by a trained professional installer.\u003c\/strong\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003eThe DuraTech 7\" Class A Chimney Pipe 11\" Square Ceiling Support Box is used to support chimney pipe and provides a positive connection between support box and chimney with a built-in twist lock. Suitable for both flat and cathedral (A-Frame) ceiling applications. Also is used in short attic spaces (see instructions). Fits between standard 16” on-center joists and most manufactured home applications. Supports up to 60' of DuraTech Chimney. Use adapter to attach DVL or DuraBlack to the support box. A 2” wide trim collar is included. Painted black.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInner Diameter: 7-1\/4\"\u003c\/li\u003e\n\u003cli\u003eHeight: 11\"\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 11\"\u003c\/li\u003e\n\u003cli\u003eDimensions: 13\" x 13\"\u003c\/li\u003e\n\u003cli\u003eSupports Up To 60' of DuraTech Chimney\u003c\/li\u003e\n\u003cli\u003eUL Listed\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0011\/1670\/0732\/files\/S9_Cathedral_Support_Box__SB.pdf?v=1675451898\" title=\"Ceiling Box install info\" target=\"_blank\"\u003eCeiling Box Install info PDF \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWith a Thermal Tech blanket insulation encased between dual walls, DuraTech offers the optimum in safety and performance. It keeps the outer wall of the chimney cool, while ensuring high flue gas temperatures for optimum draft performance. 5”-8” DuraTech is a double-wall, all-fuel chimney system for use withwood stoves, fireplaces, furnaces, boilers, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas, and zero-clearance fireplaces thatare factory-built.\u003c\/p\u003e\n\u003cp\u003eLooking for Simpson Dura-Vent? You found it! Simpson Dura-Vent has changed their name to DuraVent. DuraVent is a recognized technological leader in the venting industry. Consistently the first to market with new innovations in venting systems, DuraVent has captured a leadership position in emerging markets. DuraVent has patents for several products and continues to design safe and technologically advanced venting. The company's research into solving problems with corrosion, when biofuels such as corn are used, led to the break-through patent for PelletVent Pro. Scientifically proven materials and unequalled engineering make DuraVent products not only the best choice, or safest choice, but the only choice for professional quality venting products.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDiameter: 7\"\u003c\/li\u003e\n\u003cli\u003eConstruction Material: Inner wall of .020\" 430 stainless steel, Outer wall .021\" Galvalume steel\u003c\/li\u003e\n\u003cli\u003eClearance: 2\" clearance to combustibles\u003c\/li\u003e\n\u003cli\u003eListings: c-UL-us Listed to UL 103 and ULC S604 (MH7399)\u003c\/li\u003e\n\u003cli\u003ePainted Black\u003c\/li\u003e\n\u003cli\u003eFactory installed twist-lock fittings\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Smokey Mountain Fireplaces","offers":[{"title":"7DT-CS11  11\" Cathedral Box","offer_id":44142904115354,"sku":"7dt-cs11","price":398.45,"currency_code":"USD","in_stock":true},{"title":"7DT-CS24 24\" Cathedral Box","offer_id":44142904148122,"sku":"7dt-cs24","price":431.36,"currency_code":"USD","in_stock":true},{"title":"7DT-CS36 36\" Cathedral Box","offer_id":44142904180890,"sku":"7dt-cs36","price":480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0011\/1670\/0732\/products\/duravent-9338a-9638d-662.webp?v=1664475017","url":"https:\/\/www.smokeymountainfireplaces.com\/products\/duravent-7-duratech-11-square-ceiling-support-box","provider":"Smokey Mountain Fireplaces","version":"1.0","type":"link"}