TPI Fan forced unit heater has steel finned copper clad steel sheath heating-element for heating. It is power rated for 7.5 and 5.6-Kilo-Watts and voltage rated for 240 and 208-Volts. It has steel housing for added du73ility. This fan-forced unit heater features over heat protection, automatic reset type limit control, summer fan switch, power disconnect switch and heat stratification thermostat for added functionality. It provides airflow up to 700 CFM. Heater is cETLus listed and meets ABS standards.