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• Superior

Superior Offset 8-Inch Firestop Thimble for Joist Penetration Safety

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$106.00

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The Superior Firestop Thimble (FST30) is designed for use when offsetting an 8-inch Class A chimney through a combustible joist.

Built 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.

Features:

• Heavy-duty steel construction for long-term durability
• Designed for offsetting chimney through a joist
• Compatible with Superior 8DM Series chimney systems
• Supports safe and efficient Class A venting
• Ideal for wood-burning fireplace installations

 Specifications:

• Manufacturer: Superior
• Part Number: FST30
• Weight: 10 Pounds
• Dimensions (L x W x H): 21.5" x 21" x 28"
• Series: 8DM
• Venting Size: 8-Inch
• Venting Style: Class A Chimney Pipe