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 |
---|---|---|---|
4OF | 4" | 17 7/8" | 13 1/2" |
5OF | 5" | 23" | 14" |
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