DuraVent DuraPlus 7" Flat Ceiling Support Box
The DuraVent DuraPlus 7" Flat Ceiling Support Box is a high-performance triple-wall chimney support system designed for safe and efficient installation in wood stoves, fireplaces, furnaces, boilers, and all-fuel venting systems. Engineered with advanced ceramic blanket insulation and air space technology, it helps maintain a cooler exterior surface while ensuring a strong, efficient draft for optimal heating performance. This flat ceiling support box reduces hot spots commonly found in loose-fill insulation systems, improving overall chimney fire safety and protecting both the chimney structure and the building.
Built for continuous operation at flue gas temperatures up to 1000°F, the DuraPlus 8" ceiling support box meets strict UL 103HT standards, including one hour at 1400°F and three 2100°F chimney fire tests. This durable chimney support component ensures secure load support, code-compliant installation, and long-lasting performance in modern chimney venting systems.
Features
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Premium Chimney Support System: The DuraVent DuraPlus 7" Black Round Ceiling Support is designed for secure installation of triple-wall chimney pipe systems in wood stoves, fireplaces, furnaces, and all-fuel venting applications.
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Built-In Twist-Lock Connection: Provides a strong, positive connection between the support box and chimney pipe, ensuring safe and stable chimney installation performance.
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Flat Ceiling Installation Only: Specifically engineered for use in flat ceiling chimney installations, ensuring proper alignment and code-compliant venting system setup.
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High Load Capacity Support: Supports up to 35 feet of DuraPlus chimney pipe, making it ideal for residential chimney venting systems requiring extended runs.
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Adapter Compatibility: Designed to connect with DVL or DuraBlack adapters, offering flexible integration with chimney stove pipe systems.
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Includes Trim Collar: Comes with a 2-inch wide trim collar for a clean, finished ceiling appearance in interior installations.
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Durable Finish Options: Supplied unpainted but can be finished with high-temperature paint for customized aesthetics and long-lasting durability.
Specification
| Specification |
Details |
| Model |
7DP-FCS |
| Diameter |
7" (inner) |
| Dimensions |
14.25" (W) × 8.5" (H) |
| Clearances |
2" clearance to combustible |
| Listings |
UL Listed to UL 103HT (MH7399) |
| Warranty |
Limited-lifetime warranty |
Downloads
California PROP 65: This product can expose you to Lead & Chromium, which is known to the State of California to cause cancer and birth defects, or other reproductive harm. See WARNING
