This unit Heater, Horizontal Downflow. These convection heaters raise temperatures gradually to a comfortable level. Heaters are electric and have finned tubular heating elements positioned in front of a fan unit to provide even distribution of heat. Electric heaters eliminate combustion by products associated with fuel-fired heaters. Tubular steel frame offers long lasting durability in demanding environments. Swivel mounting bracket allows for wall or ceiling installation with included hardware to direct heat where needed. On off switch and adjustable thermostat control knob are mounted on the top of the unit. High-limit thermal cutout switch provide ease of use. Requires 50A circuit breaker.