Power Venter Application Furnaces For Fuel Type LP Natural Gas Oil For Appliance Type Gas or Oil Furnaces Boilers Water Heaters Maximum Vent Pipe Diameter 8 in Minimum Vent Pipe Diameter 7 in Maximum Heater BTU Input for Gas Appliance 740 000 BtuH Maximum Heater BTU Input for Oil Appliance 652 000 BtuH Inlet Diameter 8 in Outlet Diameter 8 in For Vent Pipe Diameter 9 in Compatible with Brand Universal Nameplate Voltage 115V AC Phase 1 Current 4.37 A Frequency 60 Hz