Electric Horizontal Delivery - Motor- The totally enclosed, thermally protected, continuous-duty motor is specially mounted for quiet operation and extended service life. Motor is selected to match fan requirements. Fan - The large-bladed, lightweight aluminum fan is connected directly to the motor shaft, and is both dynamically and statically balanced. Heating Elements - for maximum heat transfer and longer life, the sheathed nichrome wire heating elements are spirally wound and staggered within the unit to provide even air distribution. Safety Fan Guard - Formed from heavy rod stock, the fan guard eliminates the hazards of an exposed fan. Resiliently mounted to the unit casing, the guard provides a rigid support for the motor. Automatic Resetting Overheat Control - Interrupts power to heating elements in event of overheating and automatically resets itself.