FLUE SIZES TYPICALLY USED IN FIREPLACES:
SUPERIOR CLAY FLUE LINER DIMENSIONS | |||||
Rectangular Flue Lining | Round Flue Lining | Flue Lining with Opening | |||
Outside Dimensions (Approx. In.) | Effective Flue Area (Sq. In.) | Normal Inside Diameter (In.) | Effective Flue Area (Sq. In.) | Flue Lining with Opening Size of Flue (In.) | Size of Opening (In.) |
4-1/2 x 8-1/2 | 23 | 4 | 12 | 8-1/2 x 8-1/2 | 6-1/2 |
4-1/2 x 13 | 34 | 5 | 19 | 8-1/2 x 13 | 8 or 10 |
8 x 8 | 42 | 6 | 28 | 13 x 13 | 10 |
8-1/2 x 8-1/2 | 49 | 7 | 38 | 8 x 8 | 6-1/2 |
8 x 12 | 67 | 8 | 50 | 8 x 12 | 8 or 9 |
8-1/2 x 13 | 76 | 9 | 64 | 12 x 12 | 10 |
8-1/2 x 18 | 102 | 10 | 79 | Flue Ring Tees and Flue Tee Sizes correspond to those regular flue and flue rings. | |
12 x 12 | 102 | 12 | 113 | ||
12 x 16 | 131 | 15 | 177 | ||
13 x 13 | 127 | 18 | 255 | ||
13 x 18 | 173 | 21 | 346 | ||
16 x 16 | 181 | 24 | 452 | ||
16 x 20 | 222 | 27 | 530 | ||
18 x 18 | 233 | 30 | 706 | ||
20 x 20 | 298 | 33 | 829 | ||
20 x 24 | 335 | 36 | 989 | ||
24 x 24 | 431 |
SUPERIOR CLAY STANDARD FLUE RING SIZES | ||||||||
4 x 4 | 5 x 4 | 6 x 4 | 7 x 4 | 8 x 4 | 9 x 4 | 10 x 4 | 12 x 4 | |
3 x 6 | 4 x 6 | 5 x 6 | 6 x 6 | 7 x 6 | 8 x 6 | 9 x 6 | 10 x 6 | 12 x 6 |
4 x 9 | 5 x 9 | 6 x 9 | 7 x 9 | 8 x 9 | 9 x 9 | 10 x 9 | 12 x 9 | |
3 x 12 | 4 x 12 | 5 x 12 | 6 x 12 | 7 x 12 | 8 x 12 | 9 x 12 | 10 x 12 | 12 x 12 |
5 x 15 | 6 x 15 | 7 x 15 | 8 x 15 | |||||
5 x 18 | 6 x 18 | 7 x 18 | 8 x 18 | 9 x 18 | 10 x 18 | 12 x 18 |