Induced Draft Blower Application Water Heaters Boilers For Fuel Type LP Natural Gas For Appliance Type Boilers Unit Heaters Water Heaters Maximum Vent Pipe Diameter 12 in Minimum Vent Pipe Diameter 8 in Maximum Heater BTU Input for Gas Appliance 1 200 000 BtuH Maximum Heater BTU Input for Oil Appliance Not Applicable Inlet Diameter 8 in Outlet Diameter 8 in Nameplate Voltage 115V AC Current 5.8 A Maximum Motor Speed 1 725 RPM