1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your Selkirk Metalbestos 6UT-36 Ultra-Temp Type HT Insulated Chimney Pipe. Please read all instructions carefully before beginning installation or use. Retain this manual for future reference.
2. Product Overview
The Selkirk Metalbestos 6UT-36 Ultra-Temp Type HT Insulated Chimney Pipe is a high-quality, double-wall stainless steel pipe designed for venting high-temperature appliances. It features a 6-inch nominal diameter and a 36-inch length, providing excellent insulation and durability for various heating applications.

An image showing the Selkirk Metalbestos 6UT-36 Ultra-Temp Type HT Insulated Chimney Pipe, a stainless steel pipe designed for high-temperature venting applications.
Key Features:
- Double-wall construction for enhanced safety and insulation.
- Constructed from durable stainless steel.
- Designed for high-temperature (Type HT) applications.
- UL listed for safety and compliance.
3. Safety Information
Proper installation and maintenance are crucial for the safe operation of any chimney system. Failure to follow these guidelines can result in fire, carbon monoxide poisoning, or other serious injury.
Important Safety Precautions:
- Professional Installation Recommended: Installation should be performed by a qualified professional in accordance with all local and national building and fire codes.
- Clearances: Maintain proper clearances to combustible materials as specified by the appliance manufacturer and local codes.
- Inspection: Regularly inspect the chimney system for signs of damage, corrosion, or creosote buildup.
- Ventilation: Ensure adequate ventilation in the area where the appliance is installed.
- Appliance Compatibility: Use only with appliances approved for Type HT chimney systems.
4. Installation
This section provides general guidance. Always refer to the complete Selkirk installation instructions provided with your full chimney system components and local building codes.
General Installation Steps:
- Planning: Design your chimney system layout, ensuring it meets all clearance requirements and extends to the appropriate height above the roofline.
- Appliance Connection: Connect the first section of the chimney pipe to the appliance flue collar using appropriate adapters and sealants.
- Assembling Sections: Connect subsequent pipe sections, ensuring each joint is securely locked. Follow the manufacturer's instructions for locking bands or twist-lock mechanisms.
- Support: Install appropriate supports (e.g., wall supports, roof supports, ceiling supports) at recommended intervals to bear the weight of the chimney.
- Penetrations: Use proper thimbles and firestops when passing through walls, ceilings, or roofs to maintain required clearances.
- Termination: Install the chimney cap at the top of the system to prevent rain and debris entry.
- Final Inspection: Before use, have the entire system inspected by a qualified professional to ensure compliance and safety.
5. Operation
Once installed, the chimney pipe functions as part of your heating appliance's venting system. Proper operation of the appliance is key to the chimney's performance.
Operational Guidelines:
- Fuel Type: Use only the fuel type recommended by your heating appliance manufacturer.
- Avoid Over-firing: Do not operate your appliance at excessively high temperatures, as this can damage the chimney and increase creosote buildup.
- Draft: Ensure proper draft for efficient combustion and to prevent smoke spillage. Factors affecting draft include chimney height, temperature difference, and air supply.
6. Maintenance
Regular maintenance is essential to ensure the longevity and safe operation of your chimney system.
Maintenance Schedule:
- Annual Inspection: Have your chimney system inspected by a certified chimney sweep at least once a year, or more frequently if you burn wood regularly.
- Cleaning: Clean the chimney as needed to remove creosote and soot buildup. Creosote is highly flammable and can lead to chimney fires.
- Check for Damage: During inspections, look for any signs of corrosion, cracks, loose connections, or other damage to the pipe sections and components.
- Clearances: Periodically verify that all required clearances to combustible materials are maintained.
7. Troubleshooting
This section addresses common issues you might encounter with your chimney system.
Common Issues and Solutions:
- Poor Draft / Smoke Spillage:
- Check for obstructions in the chimney (e.g., bird nests, debris).
- Ensure adequate combustion air supply to the appliance.
- Verify chimney height is sufficient for proper draft.
- Ensure chimney is clean and free of excessive creosote.
- Excessive Creosote Buildup:
- Ensure you are burning dry, seasoned wood (if applicable).
- Operate the appliance at appropriate temperatures; avoid smoldering fires.
- Increase frequency of chimney cleaning.
- Visible Damage to Pipe:
- If dents, cracks, or significant corrosion are observed, the affected section(s) must be replaced immediately by a qualified professional.
8. Specifications
| Attribute | Value |
|---|---|
| Model Number | 206036U |
| Nominal Diameter | 6 inches |
| Outside Diameter | 8 inches |
| Length | 36 inches |
| Material | Stainless Steel |
| Temperature Rating | 1000°F (Type HT) |
| UL Listed | Yes |
| Item Weight | 20.0 lb |
| Product Dimensions (L x W x H) | 8.75 x 8.75 x 37.5 inches |
9. Warranty and Support
For specific warranty information regarding your Selkirk Metalbestos product, please refer to the documentation included with your purchase or visit the official Selkirk website. For technical support or assistance with installation and troubleshooting, please contact Selkirk customer service directly.
It is recommended to keep your purchase receipt as proof of purchase for any warranty claims.