Hello interested, First you had the device for about 4 hours at full load (2400W) outdoor actuate the strong odors to eliminate. After operating smell was tolerable. Until then, the volume of the device in silent mode (1200W) was pleasant, fully operational too loud. The thermostat is very rough in the regulation, that is to provide a switch-off temperature eg about 22 ° C and the fan heats up to this temperature. After the room is cooled to about 18 ° C. and then heat up again. After about 20 hours of operation the unit ceased to operate! The Amazon- repair service was not raparieren the device will be able and will refund the full purchase amount. Therefore, even one-star review! Of this I bought the DeLonghi HVY1030 quick heater 2000W ... which is to regulate cheaper and much better (5 Stars).