{"product_id":"superior-offset-8-inch-firestop-thimble-for-joist-penetration-safety","title":"Superior Offset 8-Inch Firestop Thimble for Joist Penetration Safety","description":"\u003ch3\u003eThe Superior Firestop Thimble (FST30) is designed for use when offsetting an 8-inch Class A chimney through a combustible joist.\u003c\/h3\u003e\n\u003cp\u003eBuilt with heavy-duty steel, this venting component ensures safe and code-compliant installation for your wood-burning Superior fireplace. It is part of the 8DM Series, offering premium durability and performance for demanding fireplace systems. This component maintains proper clearances and improves system integrity when a straight chimney run is not possible. Whether you're a contractor or DIY installer, refer to your fireplace installation manual for exact guidelines and manufacturer specifications to ensure safe, reliable operation.\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty steel construction for long-term durability\u003c\/li\u003e\n\u003cli\u003eDesigned for offsetting chimney through a joist\u003c\/li\u003e\n\u003cli\u003eCompatible with Superior 8DM Series chimney systems\u003c\/li\u003e\n\u003cli\u003eSupports safe and efficient Class A venting\u003c\/li\u003e\n\u003cli\u003eIdeal for wood-burning fireplace installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e Specifications:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eManufacturer: Superior\u003c\/li\u003e\n\u003cli\u003ePart Number: FST30\u003c\/li\u003e\n\u003cli\u003eWeight: 10 Pounds\u003c\/li\u003e\n\u003cli\u003eDimensions (L x W x H): 21.5\" x 21\" x 28\"\u003c\/li\u003e\n\u003cli\u003eSeries: 8DM\u003c\/li\u003e\n\u003cli\u003eVenting Size: 8-Inch\u003c\/li\u003e\n\u003cli\u003eVenting Style: Class A Chimney Pipe\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Superior","offers":[{"title":"Default Title","offer_id":45147778842809,"sku":"FST30","price":106.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/4515\/4489\/files\/38fst-a-08-21.jpg?v=1751822811","url":"https:\/\/www.ultimatehomeupgrade.com\/products\/superior-offset-8-inch-firestop-thimble-for-joist-penetration-safety","provider":"Ultimate Home Upgrade","version":"1.0","type":"link"}