{"product_id":"superior-18-8ht-18-snap-lock-section-double-wall-pipe","title":"Superior 18-8HT 18\" Snap Lock Section Double Wall Pipe","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Superior 18-8HT 18\" Snap Lock Section Double Wall Pipe is a durable and efficient chimney component designed for use in compatible wood-burning fireplace venting systems. Featuring a double-wall construction, this chimney section includes a 12-3\/8-inch diameter galvanized outer pipe and an 8-inch diameter stainless steel inner flue pipe. A built-in wire spacer separates the two walls, helping maintain proper insulation and structural stability while supporting efficient draft performance. This rugged design enhances durability and helps the chimney system withstand the high temperatures associated with wood-burning applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned with a secure snap-lock connection system, the Superior 18-8HT allows for quick and reliable installation while ensuring a stable connection between chimney sections. When designing or extending a chimney system, installers should account for lineal gain, which refers to the actual measurable length achieved after overlapping and connecting multiple components. Understanding lineal gain is essential for accurate chimney height calculations and proper venting system configuration. Manufactured to Superior’s high-quality standards, the 18-8HT Double Wall Pipe delivers dependable performance, long-lasting durability, and efficient venting. It is an excellent choice for new installations, chimney extensions, or replacement projects requiring reliable chimney system components.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eIncluded\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDouble Wall Pipe\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eEach double wall chimney section consists of a 12-3\/8\" diameter galvanized outer pipe, 8\" diameter stainless steel inner flue pipe and a wire spacer\u003c\/li\u003e\n\u003cli\u003eActual lengths gained after fitting overlaps must be taken into consideration (lineal gain)\u003c\/li\u003e\n\u003cli\u003eLineal gain is the actual measurable length of a part after two or more parts are connected\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"station-tabs-tabtitle\"\u003e\u003cspan aria-expanded=\"true\" role=\"button\" data-slug=\"specifications\" aria-controls=\"station-tabs-tabpanel_ht-i0-t13\" class=\"station-tabs-tab is-active\" id=\"station-tabs-tab_ht-i0-t13\" tabindex=\"0\"\u003e\u003cspan class=\"station-tabs-tabtext\"\u003eSpecifications\u003c\/span\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eItem Number\u003c\/td\u003e\n\u003ctd\u003e18-8HT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatalog Number\u003c\/td\u003e\n\u003ctd\u003eF0882\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003ePipe\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\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAbout The Manufacturer\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-right: auto; margin-bottom: 16px; margin-left: auto; float: none; display: block;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/Superior_Fireplaces_Logo_600_x_600_px_240x240.webp?v=1778875446\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cmeta charset=\"utf-8\"\u003eSuperior Fireplaces is dedicated to delivering best-in-class hearth products backed by exceptional customer service. Known for industry-leading quality, warmth, and innovative design, Superior offers a comprehensive selection of fireplaces, inserts, freestanding stoves, gas log sets, and chimneys to suit every style and budget. Their product lineup includes wood, gas, and electric solutions, along with a wide range of accessories designed to enhance comfort, performance, and style.\u003c\/div\u003e","brand":"Superior","offers":[{"title":"Default Title","offer_id":44458995384362,"sku":"18-8HT","price":135.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/5022\/9802\/files\/Superior_18-8HT_18_Snap_Lock_Section_Double_Wall_Pipe.png?v=1781157739","url":"https:\/\/ridgeflame.com\/products\/superior-18-8ht-18-snap-lock-section-double-wall-pipe","provider":"Ridge Flame","version":"1.0","type":"link"}