The commercial industrial suspended OAS unit heater is designed for areas requiring a high level of air flow. This unit heater may be mounted horizontally (wall or ceiling) using supplied brackets or vertically using 4 threaded rods (not included). A variety of control options are available in kits or may be factory installed. A specific option is available for use of mine applications. Adjustable louvers to direct air flow High-limit temperature control with automatic reset Totally enclosed factory-lubricated ball bearing motor