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.
Diameter Sizes: 3", 4", 5" Lengths: 24", 3', 4', 5'
Double-wall corrugated aluminum with B vent ends can be used anywhere B vent is used, except where it passes through walls, floors, ceilings, and inside enclosures. May be compressed to fit.
Model | A | B |
---|---|---|
3ADFC24 | 3" | 24" |
3ADFC3 | 3" | 3' |
3ADFC4 | 3" | 4' |
3ADFC5 | 3" | 5' |
4ADFC24 | 4" | 24" |
4ADFC3 | 4" | 3' |
4ADFC4 | 4" | 4' |
4ADFC5 | 4" | 5' |
5ADFC24 | 5" | 24" |
5ADFC3 | 5" | 3' |
5ADFC4 | 5" | 4' |
5ADFC5 | 5" | 5' |