{"product_id":"duravent-12dt-rcs-12-duratech-ldc-round-ceiling-support-box","title":"DuraVent 12DT-RCS 12\" DuraTech LDC Round Ceiling Support Box","description":"\u003cp data-path-to-node=\"1\"\u003eBuild the perfect custom venting system for your heating appliance with the DuraVent 12\" DuraTech LDC Round Ceiling Support Box. Designed for exceptional performance and long-lasting durability, this essential structural component is expertly engineered to securely support your large-diameter chimney pipe while providing a rock-solid, positive connection between the support box and the chimney itself. Built to handle heavy-duty applications, this robust support box can safely hold the weight of up to 40 feet of DuraTech LDC chimney pipe. Please note that decorative trim collars are sold separately to complete your interior ceiling finish.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eEngineered for professional hearth contractors and dedicated DIY homeowners, this premium ceiling support box (model 12DT-RCS) guarantees a fast, completely hassle-free assembly to ensure a perfectly supported, code-compliant installation. As with all DuraTech LDC installations, always remember to maintain a strictly mandatory 2-inch minimum airspace clearance to all combustible materials throughout your main chimney run. Complete your custom large-diameter wood stove or fireplace exhaust setup safely today with this indispensable DuraTech structural support component!\u003c\/p\u003e\n\u003ch3 class=\"station-tabs-tabtitle\"\u003e\u003cspan id=\"station-tabs-tab_ht-i0-t13\" class=\"station-tabs-tab is-active\" data-slug=\"whats-included\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"station-tabs-tabtext\"\u003eIncluded\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"station-tabs-tabpanel is-active\" id=\"station-tabs-tabpanel_ht-i0-t13\" role=\"region\"\u003e\n\u003cdiv class=\"station-tabs-tabcontent\"\u003e\n\u003cul\u003e\n\u003cli\u003eCeiling Support Box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNot Included \u003cem\u003e(Sold Separately)\u003c\/em\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTrim Collar\/s\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"station-tabs-tabtitle\"\u003e\u003cspan id=\"station-tabs-tab_ht-i0-t17\" class=\"station-tabs-tab is-active\" data-slug=\"features\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"station-tabs-tabtext\"\u003eFeatures\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"station-tabs-tabpanel is-active\" id=\"station-tabs-tabpanel_ht-i0-t17\" role=\"region\"\u003e\n\u003cdiv class=\"station-tabs-tabcontent\"\u003e\n\u003cul\u003e\n\u003cli\u003eSupports chimney pipe and provides a positive connection between support box and chimney.\u003c\/li\u003e\n\u003cli\u003eSupports up to 40' of DuraTech LDC Chimney.\u003c\/li\u003e\n\u003cli\u003eTrim collars are sold separately.\u003c\/li\u003e\n\u003cli\u003eFor 10” use DuraBlack Slip Connector to attach DuraBlack to the support box.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 class=\"station-tabs-tabtitle\"\u003e\u003cspan id=\"station-tabs-tab_ht-i0-t25\" class=\"station-tabs-tab is-active\" data-slug=\"specifications\" role=\"button\" tabindex=\"0\"\u003e\u003cspan class=\"station-tabs-tabtext\"\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"station-tabs-tabpanel is-active\" id=\"station-tabs-tabpanel_ht-i0-t25\" role=\"region\"\u003e\n\u003cdiv class=\"station-tabs-tabcontent\"\u003e\n\u003ctable width=\"100%\" style=\"height: 137.157px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"50%\" style=\"height: 19.5938px;\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"50%\" style=\"height: 19.5938px;\"\u003e12DT-RCS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"50%\" style=\"height: 19.5938px;\"\u003eSeries\u003c\/td\u003e\n\u003ctd width=\"50%\" style=\"height: 19.5938px;\"\u003eDuraTech LDC (10\"-24\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eCeiling Support Box\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e(Size) Inside Diameter\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e12”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eA\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e12 5⁄16”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eB\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e16”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003eC\u003c\/td\u003e\n\u003ctd style=\"height: 19.5938px;\"\u003e18”\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical Dimensions\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/DuraTech_LDC_-_Round_Ceiling_Support_Box_e2280249-2e4a-448e-8a42-5fcddf621f9d.jpg?v=1791473744\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 45.2979%;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/ChatGPT_Image_Jun_18_2026_02_25_23_PM.png?v=1781771144\" alt=\"\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 54.3543%;\"\u003eDuravent, Inc. (“Duravent”) provides this limited lifetime warranty for all of its products with the exception of Ventinox® (lifetime), and PolyPro® (ten years). Subject to the limitations set forth below, Duravent warrants that its products will be free from defects in material or manufacturing, if properly installed, maintained and used.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"color: rgb(255, 128, 0);\"\u003e\u003cspan style=\"color: rgb(48, 48, 48); font-size: 0.875rem;\"\u003eAbout The Manufacturer\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(48, 48, 48); font-size: 0.875rem;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/Duravent_Logo.png?v=1789738697\" alt=\"\" width=\"411\" height=\"124\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eDuraVent is a leading manufacturer of high-quality chimney and venting systems for residential and commercial applications. The company provides reliable solutions for wood, gas, pellet, and oil-burning appliances. Its products are rigorously tested to meet strict safety standards in the United States and Canada. DuraVent systems are engineered for durability, dependable performance, and long-term protection. Innovative features such as twist-lock connections help make installation faster, easier, and more secure. Trusted by homeowners and industry professionals, DuraVent is a recognized leader in venting technology.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"DuraVent","offers":[{"title":"Default Title","offer_id":53007080096031,"sku":"12DT-RCS","price":1890.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/DuraVent_12DT-RCS_12_DuraTech_LDC_Round_Ceiling_Support_Box.jpg?v=1791474090","url":"https:\/\/ridgeflame.com\/products\/duravent-12dt-rcs-12-duratech-ldc-round-ceiling-support-box","provider":"Ridge Flame","version":"1.0","type":"link"}