Description
2-Ply 3003 aluminum liner can be used to vent category 1 gas appliances with A.F.U.E of 83% or lower. In many cases, especially when only water heaters are vented into masonry flues, the gas appliances are vented into over-sized flues. This practice may cause condensation and performance problems. By relining the chimney with the SmartFlex aluminum liner you can reduce the condensation problem and improve the performance of the appliance. SmartFlex Aluminum Liner is designed for appliances with A.F.U.E of 83% or lower. Aluminum Liner Kits are available but sometimes you just need the liner. Great to Direct Vent installs.
SmartFlex Aluminum Liner Features:
- Top Seller - The Ideal Choice for Gas Fueled Appliances, Water Heaters and Direct Vent installs!
- Trusted Liner - UL listed and tested 2-ply aluminum liner
- 15 Year Warranty - Fifteen-year warranty, valid only if installed/maintained by a chimney professional.
- UL Listed – Listed to UL441
Looking for more information? Give our qualified Sales Team a call today!
Guidelines for Sizing SmartFlex Liners & Single Appliances
Please Note: These are general guidelines for sizing a single appliance liner, and there are many other factors and considerations to take into account when working on the job site. Please contact our qualified Sales Team for more information.
From the chart below, the top row will determine the Liner Diameter needed - use the first column and choose your Chimney Height, then moving across the chart, choose the Max. BTU's of the unit being vented.
Example: A 10' tall chimney, with a single appliance maximum BTU between 155,200 & 217,600 will require a 7" diameter liner.
Single Appliance | 4” | 5” | 6” | 7” | 8” | 9” | 10” |
6’ | 52,800 | 83,200 | 124,800 | 170,400 | 227,200 | 294,400 | 362,400 |
10’ | 64,000 | 102,400 | 155,200 | 217,600 | 283,200 | 364,800 | 447,200 |
15’ | 74,400 | 119,200 | 179,200 | 251,200 | 320,000 | 434,400 | 538,400 |
20’ | 79,200 | 132,000 | 198,400 | 275,200 | 374,400 | 488,800 | 603,200 |
30’ | 88,800 | 146,400 | 223,200 | 313,600 | 426,400 | 558,400 | 690,400 |
50’ | 96,800 | 164,000 | 249,600 | 354,400 | 490,400 | 648,800 | 805,600 |
All figures based on a single wall connector, 2' lateral run, with natural draft.
Technical Specifications
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Installation Instructions:
- Aluminum Liner Installation Instructions(PDF, 124KB)
Sales Sheets:
- Relining Best Practices (PDF, 674KB)
- Home Safety- Chimney Relining for Gas Appliances (PDF, 1.0MB )
- Aluminum Liner Warranty (PDF, 43KB)
