This is an attractive and well-made radiator heater that works well, except maybe for the thermostat. Setting the thermostat at even 10-15 degrees above room temperature, it starts on high for a while, but then drops to medium and even low heat well before (5 to 10 degrees) reaching the target temperature. At these settings it will take much longer than necessary to warm the room. It will even shut off for a while 5 degrees below target, then come back on. I don't think it is an offset because once at set temperature (manually turning on high until it gets there), it seems to toggle on and off around the set point to correctly maintain that temperature. One thing better than less expensive radiator heaters though is that when manually set to high, it stays there and doesn't cut off and on as others do, so manual operation is good. I think the thermostat just may not be able to do any better since it is in the heater and too close to the heat source to judge room temperature very well. I followed instructions in the manual and even called DeLonghi tech support, but they didn't have any further suggestions, except to set it higher than desired to keep it on high longer, but then it will eventually go too high if untended, defeating the purpose of the thermostat other than to maintain a temperature once reached manually. It is difficult to see the LCD display in low light and heater rolls a little on a hard floor when pushing the buttons to set it without a good place to hold it back while hot. Setting the clock every time it is plugged in is a little bit of a nuisance too, but it does maintain settings for a couple of minutes if unplugged and then plugged in again at a different location. Low automatic setting to prevent freezing is a good feature, though if there is a power failure for more than 2 minutes it will not come back on and freeze protection will be lost. Not sure electronic works all that much better than manual.
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