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 |
---|---|---|---|---|
4OBPWS | 4" | 9" | 9 5/8" | 2 5/16" |