Works very well. It is quiet, so you can use it in your bedroom when you sleep.

The PRESTO HeatDish parabolic electric heater uses a computer-designed parabolic reflector to focus heat, like a satellite dish , so it feels three times warmer than 1500 watt heaters, yet uses a third less energy. Because it warms you directly, you feel the heat almost instantly without first heating the entire room.
Special safeguard features turn the heater off automatically in case of accidental tip-over.Warning buzzer sounds if the heater is jarred or tipped while the heating element is energized.Ideal for use in workshops or garages; keeps you warm even in chilly surroundings.