Draft Inducer Application Boilers Furnaces Water Heaters For Fuel Type Coal Natural Gas Oil For Appliance Type Boilers Furnaces Non-Condensing Chimney Vented Gas and Oil Fueled Heating Equipment Ovens Water Heaters Maximum Vent Pipe Diameter 6 in Minimum Vent Pipe Diameter 3 in Maximum Heater BTU Input for Gas Appliance 377 000 BtuH Maximum Heater BTU Input for Oil Appliance 300 000 BtuH Nameplate Voltage 115V AC Current 0.43 A Frequency 60 Hz Maximum Static Pressure 0 in wc