The DuraFlex SW Stainless Steel Length-6" x 35' is a smooth inner-wall, flexible, stainless steel chimney liner. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency. Smooth wall construction eliminates ridges that restrict flue gas flow and collect deposits. The lack of ridges facilitates cleaning and maintenance. Duraflex SW flexible relining is for masonry chimneys. Use with gas, wood pellet, oil or wood appliances. Applications include: fireplace inserts, furnaces, boilers and water heaters.
Designed for long-lasting durability, DuraFlex SW is UL 1777 certified for safety and reliability.
DuraFlex SW Applications:
DuraFlex SW smooth wall flexible relining for masonry chimney. Use with gas, wood pellet, oil, or wood appliances. Applications include: f ireplace inserts, furnaces, boilers, and water heaters.
Materials and Construction:
Single-wall .005” overlapped 316 stainless steel (totaling .010"). Overlapped to create smooth inner wall.
Clearances:
0” clearance for gas, oil, and pellet applications. 1” clearance to masonry for wood-burning applications. Insulation is required for 0” clearance to masonry for wood-burning.
Diameters: 3”- 12”.
Listings: Listed to UL 1777 (MH45609).
Installation Instructions:
- Ovalizing Flexible Liners (PDF, 735KB)
- Flexible Chimney Liners Installation Instructions(PDF, 1.33MB )
Sales Sheets:
- Relining Best Practices (PDF, 674KB)
- Home Safety- Chimney Relining for Gas Appliances (PDF, 1.0MB )
- Home Safety- Chimney Lining for Oil Fired Equipments (PDF, 581KB)
- Oil Sizing Chart (PDF, 122KB)
Catalogs:
- DuraVent All Products Catalog (PDF, 47.4MB)
Bulletins:
- TherMix Chimney Liner Insulation (PDF, 280KB)
