Qmark Heater comes equipped with ceiling-ceiling mount bracket for horizontal or vertical flow mounting or any position in between Built-in single-pole thermostat Copper-brazed steel fins with steel sheathed tubular elements for uniform heating and longevity Adjustable louvers control air throw direction Automatic fan delay eliminates cold drafts on start-up and discharges residual heat from the heater body during shut down High limit cutout automatically shuts off current in event of overheating and reactivates unit when temperature returns to normal Disconnect switch (DS30) option available for heaters 24 amps or lower *