Profile: Electric Fan Engineering Co. develops cooling products for automobiles, trucks, buses and industrial applications. Our product includes turbine electric on-off fans, turbine hydraulic on-off fans and thermal maxTM heat transfer systems. We design turbine electric on-off fans, which improve fuel economy (up to 15%) and performance because it operates off batteries & reduces maintenance costs because it is thermostatically controlled. Our turbine hydraulic on-off fan eliminates fan alignment problems on vehicles, allowing greater flexibility in the design of cooling systems. Our thermal maxTM heat transfer system features an all-steel oil to air heat exchanger that may be combined with either a 12 or 24 volt electric or hydraulic fan assembly.