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 |
---|---|---|---|
3RLA | 3" | 3" | 5.625" |
4RLA | 4" | 4" | 5.625" |
5RLA | 5" | 5" | 5.625" |
6RLA | 6" | 6" | 5.625" |
7RLA | 7" | 7" | 5.625" |
8RLA | 8" | 8" | 5.625" |