Chimneys and Fireplace Sizing

Chimneys and fireplaces for stoves burning wood or coal as fuel. Reference tables for prefab/metal chimneys and masonry flues with sizing specifications and common venting uses.

Chimney Size (Inside diameter in inches)Inside Area (square inches)Common Venting Uses
628.3Stoves, Central Heaters
738.5Stoves, Central Heaters
850.3Stoves, Small Fireplaces, Central Heaters
1078.6Stoves, Fireplaces, Central Heaters
12113Fireplaces, Central Heaters
Flue Size (Outside Diameter in inches)Inside Area (square inches)Common Venting Uses
7 1/2 x 7 1/231Stoves, Central Heaters
8 1/2 x 8 1/241Stoves, Central Heaters
8 1/2 x 1370Stoves, Fireplaces, Central Heaters
13 x 1399Fireplaces
13 x 18156Fireplaces