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.
The multiple-size Adjustable Storm Collar fits both 6" and 8" chimney pipe, and is available in galvanized (ASCWG) and aluminum (ASCWA).
Part No. | Size | A |
---|---|---|
PL-ASCWG | 6"-8" | 3 1 /2" |
PL-ASCWA | 6"-8" | 3 1 /2" |