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 |
---|---|---|---|
14C | 14" | 22" | 11" |
16C | 16" | 25" | 12" |
18C | 18" | 28 1/4" | 13 1/2" |
20C | 20" | 31 1/2" | 15" |
22C | 22" | 34 1/2" | 16 1/2" |
24C | 24" | 37 3/4" | 18" |
26C | 26" | 42" | 19 1/2" |
28C | 28" | 44" | 21" |
30C | 30" | 48" | 22 1/2" |