These requirements cover venting systems intended for venting commercials building heating appliances as defined by the Standard for Ventilation Control of Chimneys, Fireplaces and Solid Fuel Burning Appliances, NFPA 211, and the National Fuel Gas Code, NFPA 54. Venting systems covered by these requirements are intended to be used with building heating appliances that have been installed in accordance with NFPA 54, NFPA 211, and with codes such as the International Fuel Gas Code, the Association of Plumbing and mechanical Officials and local codes.

Non-ANSI Categorized appliances or per appliance’s installation instructions.

1400°F

Positive up to 60’’ W.C.

304 Stainless Steel Inner wall, 1” air insulation, aluminized steel outer wall.

Per appliance’s installation instructions (equivalent feet or NFPA 211 or NFPA 54)