My office has about 16 square meters, I had here before a radiator of AEG, which was defective but after 4 years. I then bought this as a replacement here. Delivery was very fast, the device was set up and connected quickly. I welcome that the device is quite stable, the role recordings are made of metal. At the initial heating and no unpleasant odor was noticeable. I then let the radiator running at full power for several hours, the heat build-up was only moderate. The instrument itself is already hot, but to heat the room it is not enough really. Will it send back.