{"product_id":"duravent-6dt-18ss-6-x-18-duratech-stainless-steel-double-wall-chimney-pipe","title":"DuraVent 6DT-18SS 6\" x 18\" DuraTech Stainless Steel Double-Wall Chimney Pipe","description":"\u003cp\u003eMake precise vertical adjustments and ensure maximum weather resistance for your hearth system with the DuraVent 6\" x 18\" DuraTech Stainless Steel Double-Wall Chimney Pipe. Designed for all-fuel venting applications, this 18-inch pipe section is ideal for fine-tuning your chimney height or bridging gaps where standard longer lengths fall short. Engineered with a highly efficient double-wall design, it features a stainless steel inner flue paired with a premium stainless steel outer casing. This robust construction safely handles the extreme temperatures from your indoor wood stove, fireplace, or furnace while offering unparalleled protection against rust and corrosion in coastal or harsh outdoor environments.\u003c\/p\u003e\n\u003cp\u003eBuilt for uncompromising structural integrity and fire safety, this premium chimney section maintains a cool exterior to strictly ensure the mandatory two-inch clearance to combustible materials. Designed for both professional contractors and dedicated DIY homeowners, it utilizes an intuitive twist-lock mechanism for a fast, secure, and hardware-free connection to other DuraTech system components. Whether you are navigating a tricky wall pass-through or adapting to custom ceiling heights, this vital piece guarantees your exterior venting remains safely aligned, highly durable, and strictly code-compliant. Complete your hearth project today with this essential DuraVent 18-inch stainless steel pipe!\u003c\/p\u003e\n\u003ch3 class=\"station-tabs-tabtitle\"\u003e\u003cspan id=\"station-tabs-tab_ht-i0-t13\" class=\"station-tabs-tab is-active\" 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\u003eChimney Pipe (GA)\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\" 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\u003eAvailable in stainless steel (5\"-8\" SS) or galvalume (6\"-8\" GA) outer casing.\u003c\/li\u003e\n\u003cli\u003eStainless steel inner wall with twist-lock connections.\u003c\/li\u003e\n\u003cli\u003e24”, 36”, 48”, and 60” chimney lengths available with additional protective carton filler (CF) for shipping.\u003c\/li\u003e\n\u003cli\u003eTo calculate installed length of 5”, 6”, 7”, or 8” DuraTech himney, subtract 1 1⁄4” from each joint overlap of chimney pipe. Allow a minimum of 2” air space to combustibles when installing DuraTech Chimney.\u003c\/li\u003e\n\u003cli\u003eNote: Short, painted Chimney Pipe Sections are intended for interior use with through-the-wall installations; or cathedral ceiling applications where the chimney utilizes a roof support and Finishing Collar.\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\" 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%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003eModel\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003e6DT-18SS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003eSeries\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003eDuraTech DT (5\"-8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eChimney Pipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Finish\u003c\/td\u003e\n\u003ctd\u003e.020\" 430 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Finish\u003c\/td\u003e\n\u003ctd\u003e.016” 430 Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e(Size) Inside Diameter\u003c\/td\u003e\n\u003ctd\u003e6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003e6\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003e8\"\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_DT_-_Chimney_Pipe_c0ed9a89-e8be-4165-ac12-2627dfe4189a.jpg?v=1790092180\" 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":44894221205546,"sku":"6DT-18SS","price":249.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/DuraVent_6DT-24SSCF_6_x_24_DuraTech_Stainless_Steel_Double-Wall_Chimney_Pipe_with_Protective_Carton_Filler.jpg?v=1790098583","url":"https:\/\/ridgeflame.com\/products\/duravent-6dt-18ss-6-x-18-duratech-stainless-steel-double-wall-chimney-pipe","provider":"Ridge Flame","version":"1.0","type":"link"}