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. The System Design and Installation Guide is an additional resource.
Model | Size |
---|---|
3EVC | 3" |
4EVC | 4" |
5EVC | 5" |
6EVC | 6" |
7RVC | 7" |
8RVC | 8" |
9RVC | 9" |
10RVC | 10" |
12RVC | 12" |