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 durable, all stainless steel, multi-purpose cap features a wide-open design to reduce creosote and a wind band to meet or exceed UL rain test requirements. Minimizes downdraft. A spark arrestor is available to comply with local codes.