Duravent - (2) 3" Liners - 25ft with Termination Cap - 46DVA-CL33-25
Use when installing a direct vent co-linear insert into a masonry chimney.
Kit includes: High-Wind Termination Cap and two pieces of Aluminum Flex lengths - one Red (exhaust), and one Green (air intake). See chart for diameters and lengths.
Specifications
| Diameter |
3" Exhaust/3" Intake |
| Pipe Length |
25ft |
| Color/Finish |
Silver |
| Vent Type |
Direct-Vent |
| Pipe Wall Type |
Co-Linear Flex |
What Our Experts Think
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Complete Co-Linear Venting Kit – The DuraVent (2) 3" Liners - 25ft with Termination Cap (46DVA-CL33-25) is designed for safely venting gas fireplace inserts through existing masonry or factory-built chimneys.
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Dual 3” Aluminum Flex Liners – One liner efficiently exhausts combustion gases, while the other provides fresh air intake, ensuring balanced and efficient operation.
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25-Foot Length for Flexible Installation – Ideal for medium-height chimneys, allowing for easy routing while maintaining optimal airflow.
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Durable & Corrosion-Resistant Material – Made from high-quality aluminum, these liners withstand heat, moisture, and corrosion for long-lasting performance.
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Includes Secure Termination Cap – A weather-resistant termination cap ensures proper venting while preventing debris, moisture, and pests from entering the system.
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Optimized for Safe & Efficient Combustion – Helps maintain consistent airflow, improving fireplace efficiency and reducing the risk of backdrafts.
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UL Listed & Code Compliant – Meets industry safety and performance standards, making it a reliable choice for residential installations.
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Easy Installation – Flexible liners simplify installation in existing chimney setups, minimizing the need for modifications.
Q&A
Q: What is the Duravent (2) 3" Liners - 25ft with Termination Cap (46DVA-CL33-25)?
A: A co-linear venting kit that includes two 3" flexible aluminum liners (25 feet each) and a termination cap, designed for venting direct vent gas appliances through an existing chimney.
Q: What material is it made of?
A: Made from high-quality aluminum for durability, flexibility, and corrosion resistance.
Q: Why choose this liner kit?
A: Ideal for safely and efficiently venting gas fireplaces and inserts through an existing masonry chimney while maintaining proper combustion air intake and exhaust.
Q: Is it compatible with all DirectVent Pro systems?
A: Designed for co-linear venting applications—confirm compatibility with your appliance manufacturer before installation.
Q: Does it require professional installation?
A: Professional installation is recommended to ensure proper venting, safety, and compliance with local building codes.
Q: What is the warranty?
A: Warranty details vary; check with Duravent for specific coverage and terms.
Maintenance Tips
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Regular Inspection: Check for kinks, blockages, or damage to maintain proper airflow.
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Cleaning: Use a soft brush or vacuum to remove soot, creosote, and debris from the liners.
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Secure Connections: Ensure all fittings and clamps are tightly secured to prevent leaks.
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Weather Protection: Verify that the termination cap is properly installed to withstand wind, rain, and snow.
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Annual Maintenance: Schedule a professional inspection to ensure efficiency and safety.
