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 |
---|---|
3FX-PD | 3" |
4FX-PD | 4" |
5FX-PD | 5" |
55FX-PD | 5.5" |
6FX-PD | 6" |
7FX-PD | 7" |
8FX-PD | 8" |