Using tables from the National Fuel Gas Code or our Sizing & Application Guide, determine the diameter of venting required. The Sizing & Application Guide also offers tips on good design including multi-appliance system sizing and design.
Model | Size | Dim. A | Dim. B | Dim. C |
---|---|---|---|---|
3REA90 | 3" | 5 1/2" | 3 3/4" | 7 1/4" |
4REA90 | 4" | 6" | 4 1/4" | 8 1/4" |
5REA90 | 5" | 6 1/2" | 4 3/4" | 9 1/4" |
6REA90 | 6" | 7" | 5 1/4" | 10 1/4" |
7REA90 | 7" | 7 3/4" | 6" | 11 3/4" |
8REA90 | 8" | 8 1/4" | 6 1/2" | 12 3/4" |