{"product_id":"dura-plus-8-inch-ceiling-support-box","title":"DuraVent - DuraPlus 8\" Inner Diameter Square Ceiling Support Box","description":"\u003cp\u003eIntroducing the DuraVent DuraPlus 8\" Square Ceiling Support Box – your essential companion for stove safety, efficiency, and peace of mind. This ingeniously crafted support box is your first line of defense against the elements, ensuring that your chimney operates at peak performance while safeguarding your home.\u003c\/p\u003e\n\u003cp\u003eDesigned with excellence in mind, the DuraPlus Ceiling Support Box is the epitome of quality and reliability. Whether you have flat, vaulted, or cathedral ceilings, this support box has you covered. Its sleek black finish not only adds a touch of sophistication but also complements any decor seamlessly. What truly sets it apart is the integrated Starter Section, simplifying installation and ensuring a snug fit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eBenefits:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEnhanced Safety: DuraPlus is engineered with a fire-safe triple-wall construction that remains cool on the outside while maintaining a hot draft on the inside. It's your dependable shield against chimney fires.\u003c\/li\u003e\n\u003cli\u003eOptimal Efficiency: With two insulating layers and a ventilated air space, this support box boosts stove efficiency, reducing heat loss and ensuring even heating throughout your home.\u003c\/li\u003e\n\u003cli\u003eVersatile Compatibility: Whether you have a flat, vaulted, or cathedral ceiling, the DuraPlus Square Ceiling Support Box is designed to seamlessly integrate into your space.\u003c\/li\u003e\n\u003cli\u003eBuilt to Last: Crafted from high-quality stainless and galvanized steel, this support box is built to withstand the test of time and elements, backed by a limited-lifetime warranty.\u003c\/li\u003e\n\u003cli\u003eHassle-Free Installation: Thanks to the precision twist-lock connection, installation is a breeze, ensuring a secure and reliable fit.\u003c\/li\u003e\n\u003cli\u003eUL Listed: Rigorously tested and UL Listed to UL 103HT (MH7399), providing you with the utmost confidence in its safety and performance.\u003c\/li\u003e\n\u003cli\u003eCeiling Pitch Table: Easily determine the right size support box for your ceiling pitch using our convenient Ceiling Pitch table.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUse with flat, vaulted, or cathedral ceilings.\u003c\/li\u003e\n\u003cli\u003eThe Square Ceiling Support Box is painted black.\u003c\/li\u003e\n\u003cli\u003eStarter Section built-in.\u003c\/li\u003e\n\u003cli\u003eSupports up to 35’ of DuraPlus Chimney.\u003c\/li\u003e\n\u003cli\u003eFor adapters, see DVL and DuraBlack section.\u003c\/li\u003e\n\u003cli\u003eTrim included.\u003c\/li\u003e\n\u003cli\u003eRefer to the Ceiling Pitch table to determine the size of the support box needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eMaterials and Construction:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e.016” 430 stainless steel outer wall\u003c\/li\u003e\n\u003cli\u003e.016” 430 stainless steel inner liner.\u003c\/li\u003e\n\u003cli\u003e.018” galvanized steel outer wall.\u003c\/li\u003e\n\u003cli\u003e.018” aluminized steel intermediate liner.\u003c\/li\u003e\n\u003cli\u003eInsulated layers plus ventilated air space.\u003c\/li\u003e\n\u003cli\u003eLocks tightly with a precision twist-lock connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable style=\"width: 534px;\" data-mce-style=\"width: 534px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"width: 115px;\" data-mce-style=\"width: 115px;\"\u003e8DP-CS11\u003c\/td\u003e\n\u003ctd style=\"width: 137px;\" data-mce-style=\"width: 137px;\"\u003e8DP-CS24\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003e8DP-CS36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"width: 115px;\" data-mce-style=\"width: 115px;\"\u003e8\" (inner)\u003c\/td\u003e\n\u003ctd style=\"width: 137px;\" data-mce-style=\"width: 137px;\"\u003e8\" (inner)\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003e8\" (inner)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eDimension\u003c\/td\u003e\n\u003ctd style=\"width: 115px;\" data-mce-style=\"width: 115px;\"\u003e11\" (A) x 18.25\" (W)\u003c\/td\u003e\n\u003ctd style=\"width: 137px;\" data-mce-style=\"width: 137px;\"\u003e24\" (A) x 18.25\" (W)\u003c\/td\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003e36\" (A) x 18.25\" (W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eClearances\u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 378px;\" data-mce-style=\"width: 378px;\"\u003e2\" clearance to combustible.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eListings\u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 378px;\" data-mce-style=\"width: 378px;\"\u003e\u003cspan\u003eUL Listed to UL 103HT (MH7399).\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 126px;\" data-mce-style=\"width: 126px;\"\u003eWarranty\u003c\/td\u003e\n\u003ctd colspan=\"3\" style=\"width: 378px;\" data-mce-style=\"width: 378px;\"\u003eLimited-lifetime warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\n\u003ctable width=\"100%\" style=\"text-align: left;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 524px;\" data-mce-style=\"width: 524px;\"\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\u003cstrong\u003eCeiling Pitch Table\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\" data-mce-style=\"text-align: center;\"\u003e\n\u003ctable width=\"100%\" style=\"text-align: left;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003eDuraBlack\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003eDVL\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003eUSE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e0\/12-4\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e0\/12-6\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e11\" Support Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e5\/12-9\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e7\/12-13\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e24\" Support Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e10\/12-14\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e14\/12-20\/12\u003c\/td\u003e\n\u003ctd style=\"text-align: left;\" data-mce-style=\"text-align: left;\"\u003e36\" Support Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch3\u003eDownloads:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/DuraPlus_Brochure.pdf?v=1696776293\" style=\"color: #ff8000;\"\u003e\u003cstrong\u003eProduct Brochure\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/DuraPlus_Catalog.pdf?v=1696776356\" style=\"color: #ff8000;\"\u003e\u003cstrong\u003eProduct Catalog\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/DuraPlus_Installation_Manual.pdf?v=1696776408\" style=\"color: #ff8000;\"\u003e\u003cstrong\u003eInstallation Manual\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/DuraPlus_Installation_Guide.pdf?v=1696776460\" style=\"color: #ff8000;\"\u003e\u003cstrong\u003eInstallation Guide\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #ff8000;\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/DuraPlus_Typical_Installation_423de4cc-b135-4032-a78f-28518d97fa67.pdf?v=1696776510\" style=\"color: #ff8000;\"\u003e\u003cstrong\u003eTypical Installation\u003c\/strong\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAbout the Manufacturer:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"safety-warning\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0591\/9912\/7740\/files\/Duravent_Logo_TM_RGB-1024x179_240x240.png?v=1693424318\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eConsistently 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.\u003c\/p\u003e","brand":"DuraVent","offers":[{"title":"11\"","offer_id":53065249095979,"sku":"8DP-CS11","price":204.98,"currency_code":"USD","in_stock":true},{"title":"24\"","offer_id":53065249128747,"sku":"8DP-CS24","price":223.06,"currency_code":"USD","in_stock":true},{"title":"36\"","offer_id":53065249161515,"sku":"8DP-CS36","price":347.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0968\/8491\/6523\/files\/chimney-components-duravent-duraplus-8-inner-diameter-square-ceiling-support-box-33433092227242.jpg?v=1775146744","url":"https:\/\/nationfireplace.com\/products\/dura-plus-8-inch-ceiling-support-box","provider":"nationfireplace.com","version":"1.0","type":"link"}