Fireplace Liner Sizing Guide
The chart below uses a 10-1 ratio. A 10-1 ratio should be used for chimneys less than 25 feet in height and a 12-1 ratio for chimneys greater than 25 feet in height.
Fireplace Opening |
Liner Size |
| Up to 600 sq. in | 9″ Chimney Liner |
| 601 – 760 sq. in. | 10″ Chimney Liner |
| 761 – 942 sq. in. | 11″ Chimney Liner |
| 943 – 1140 sq. in. | 12″ Chimney Liner |
| 1141 – 1356 sq. in. | 14″ Chimney Liner |
| 1357 – 1846 sq. in. | 16″ Chimney Liner |
