DuraVent 8-inch DuraPlus 36-inch Square Ceiling Support Box (Model 8DP-CS36)

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of your DuraVent 8-inch DuraPlus 36-inch Square Ceiling Support Box. Please read these instructions thoroughly before beginning installation or use to ensure safety and optimal performance of your chimney system.

The DuraVent DuraPlus system is designed for use with wood-burning appliances. Adherence to these instructions and all applicable local and national building codes is critical.

2. Safety Information

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a qualified installer, service agency, or the manufacturer.

• Always consult local building codes and fire regulations before installation. Installation must comply with all applicable codes.
• Professional installation by a certified technician is highly recommended.
• Ensure all components are securely fastened and properly sealed according to DuraVent specifications.
• This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Proposition 65 warning).

3. Product Overview

The DuraVent 8-inch DuraPlus 36-inch Square Ceiling Support Box is a critical component for supporting a DuraPlus chimney system. It is designed for installation with flat, vaulted, or cathedral ceilings, providing structural support for up to 35 feet of DuraPlus chimney pipe.

Key features include:

• Dimensions: 36 inches in height.
• Diameter: Designed for 8-inch DuraPlus chimney pipe.
• Installation: Features an easy in-and-out fit for chimney components.
• Finish: Painted black for aesthetic integration.
• Integrated Components: Includes a built-in starter section and trim.

Figure 1: M&G DuraVent 8-inch DuraPlus 36-inch Square Ceiling Support Box. The box is black, square-shaped, and designed to support chimney systems. It features a flat flange at the bottom for ceiling integration and a circular opening for the chimney pipe.

4. Setup and Installation

The DuraVent Ceiling Support Box is a foundational element for your chimney system. Proper installation is crucial for safety and system integrity. Always refer to the complete DuraVent DuraPlus installation guide for detailed instructions, diagrams, and specific requirements for your chimney system configuration.

General Installation Steps:

1. Planning: Determine the exact location for the chimney system, ensuring proper clearances to combustibles as required by local codes and the DuraVent installation manual.
2. Ceiling Opening: Create the appropriate size opening in the ceiling structure to accommodate the support box and maintain required clearances.
3. Support Box Placement: Position the square ceiling support box within the ceiling opening. The built-in trim should sit flush with the finished ceiling surface.
4. Securing the Box: Secure the support box to the ceiling joists or framing using appropriate fasteners, ensuring it is level and stable.
5. Chimney Connection: The built-in starter section at the bottom of the support box is designed to connect directly to the first section of DuraPlus chimney pipe. Ensure a secure and tight connection.
6. Chimney Assembly: Continue assembling the DuraPlus chimney system upwards through the support box, following the manufacturer's instructions for pipe connections and support. The box is rated to support up to 35 feet of DuraPlus chimney.
7. Adapters: If connecting to other components or systems (e.g., DuraBlack stove pipe), refer to the specific adapter requirements detailed in the full DuraVent installation guide.

Note: For specific ceiling pitch requirements and corresponding support box sizing, consult the detailed tables and diagrams provided in the official DuraVent DuraPlus installation manual.

5. Operation

The DuraVent Ceiling Support Box is a passive component of your chimney system. Its primary function is to provide structural support for the vertical run of DuraPlus chimney pipe and to maintain the necessary clearances between the hot chimney and combustible building materials. Once properly installed, it operates continuously as part of the overall chimney system.

No user interaction or adjustment is required for the support box itself during the normal operation of the heating appliance connected to the chimney.

6. Maintenance

Regular inspection and maintenance of the entire chimney system, including the ceiling support box, are essential for safe and efficient operation.

• Annual Inspection: Have your entire chimney system inspected annually by a qualified chimney sweep or professional.
• Visual Check: Periodically inspect the visible portions of the ceiling support box for any signs of damage, corrosion, or loose connections. Ensure the trim remains flush with the ceiling.
• Clearances: Verify that all required clearances to combustible materials are maintained around the support box and chimney pipe.
• Cleaning: While the support box itself does not typically require cleaning, ensure that the chimney pipe passing through it is free of creosote buildup and other obstructions as part of regular chimney cleaning.

7. Troubleshooting

Issues related to a ceiling support box are typically structural or installation-related. If you observe any of the following, consult a qualified professional immediately:

• Visible Damage: Cracks, dents, or corrosion on the support box.
• Loose Connections: Any movement or separation between the support box and the chimney pipe, or between the box and the ceiling structure.
• Smoke Leaks: Smoke or odors escaping from around the ceiling support box.
• Clearance Violations: Evidence of heat damage to surrounding combustible materials.

Do not attempt to repair structural components of your chimney system without professional guidance. Contact a certified chimney professional for diagnosis and repair.

8. Specifications

9. Warranty Information

Warranty terms and conditions for DuraVent products are subject to change and may vary. For the most current and accurate warranty information, please refer to the official DuraVent website or the warranty documentation included with your product packaging. Retain your proof of purchase for warranty claims.

10. Support

For technical assistance, installation questions, or product support, please contact DuraVent directly through their official customer service channels. Their website typically provides contact information, FAQs, and detailed product documentation.

Manufacturer: M&G DuraVent