{"product_id":"duravent-8-duraplus-square-ceiling-support-box","title":"DuraVent 8\" DuraPlus Square Ceiling Support Box","description":"\u003ch3 style=\"text-align: center;\"\u003eDuraVent DuraPlus 8\" Square Ceiling Support Box\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eDuraVent DuraPlus 8\" Square Ceiling Support Box\u003c\/strong\u003e is a premium triple-wall chimney support component designed to provide a secure transition through flat, vaulted, or cathedral ceilings in wood stove, fireplace, and all-fuel chimney systems. Featuring advanced ceramic blanket insulation and an insulating air space, the DuraPlus system keeps the exterior cooler while maintaining a strong, efficient draft. This chimney support box minimizes hot spots, enhances chimney fire safety, and protects both the venting system and surrounding building materials for long-lasting, reliable performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrder Numbers:\u003c\/strong\u003e DV-8DP-CS11 - 8\" x 11\"; DV-8DP-CS36 - 8\" x 36\"\u003c\/p\u003e\n\u003cp\u003eEngineered for continuous operation at flue gas temperatures up to 1000°F, the DuraVent DuraPlus Square Ceiling Support Box exceeds rigorous UL 103HT safety standards, including one hour at 1400°F and three 2100°F chimney fire tests. Its durable construction delivers dependable support, code-compliant installation, and exceptional performance for modern residential all-fuel chimney venting systems.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Square Ceiling Support Box:\u003c\/strong\u003e Designed for DuraVent DuraPlus 8\" triple-wall chimney systems, providing a secure and code-compliant support point for wood stove, fireplace, and all-fuel chimney installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible with Multiple Ceiling Types:\u003c\/strong\u003e Ideal for flat, vaulted, and cathedral ceilings, offering versatile installation options in residential chimney venting systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Long Chimney Runs:\u003c\/strong\u003e Engineered to support up to 35 feet of DuraPlus chimney, delivering exceptional structural stability and reliable performance.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated Starter Section:\u003c\/strong\u003e Features a built-in starter section for quick installation, proper chimney alignment, and a secure twist-lock connection.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Black Finish:\u003c\/strong\u003e The painted black square ceiling support box provides corrosion resistance and a clean, professional appearance that complements interior installations.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim Collar Included:\u003c\/strong\u003e Includes a trim collar for a finished look while concealing ceiling openings for a neat installation.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Compatible:\u003c\/strong\u003e Designed for use with DVL and DuraBlack adapters, allowing seamless integration with compatible stove pipe systems.\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL 103HT Listed:\u003c\/strong\u003e\u003cstrong\u003eUL Listed to UL 103HT (MH7399)\u003c\/strong\u003e for trusted safety, high-temperature performance, and code-compliant installation.\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DuraVent","offers":[{"title":"8\" x 11\"","offer_id":47177791308067,"sku":"DV-8DP-CS11","price":326.0,"currency_code":"USD","in_stock":true},{"title":"8\" x 36\"","offer_id":55293591617827,"sku":"DV-8DP-CS36","price":555.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/6926\/8771\/files\/Majestic-8_-DuraPlus-Square-Ceiling-Support-Box-Majestic-Dreamwood-Living-24985545.jpg?v=1758297275","url":"https:\/\/www.dreamwoodliving.com\/products\/duravent-8-duraplus-square-ceiling-support-box","provider":"Dreamwood Living","version":"1.0","type":"link"}