Dyson AM04 Hot + Cool fan heater heats rooms quickly and evenly. And in warmer weather, it cools you effectively. In heating mode, you can set your target temperature to the degree and an intelligent thermostat will keep it there.| The only fan heater with Jet Focus control. Focused mode for long-range powerful airflow, or diffused mode for wide projection.Features: Effective all year round: The Dyson Hot + Cool™ fan heater heats rooms quickly and evenly. And in warmer weather it cools you effectively.Air Multiplier™ technology: Dyson fan heaters use Air Multiplier™ technology to create a powerful stream of uninterrupted airflow.Wide projection to mix the surrounding air: Select diffused mode to project powerful airflow for both wide and long-range heat distribution. It heats the room quickly and evenly no more cold spots.Long-range powerful airflow: Select focused mode to channel and direct a powerful jet of air for long-range personal heating. No more sitting in front of the heater.The only fan heater with Jet Focus control: The only fan heater with Jet Focus control. Focused mode for long-range powerful airflow or diffused mode for wide projection.Precise energy efficient heating: In heater mode the intelligent thermostat monitors the room to reach and maintain the target temperature – no wasted energy.Sleep timer: Can be programmed to turn off after pre-set intervals ranging from 15 minutes to 9 hours.Oscillation control: Airflow can be directed around a room – one touch for smooth oscillation.Easy tilt: AM04 pivots on its own center of gravity staying put without clamping.Safe: No fast-spinning blades or visible heating elements. AM04 automatically cuts out if tipped over