Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great heater!

I just purchased this heater and after the first day of use I am very satisfied. There was a smell at the initial start up which others have noted but it was insignificant after about 3 hours of use. The smell results from a chemical which they use to prevent the metal from rusting during shipping. At high heat this chemical burns off and there is an unpleasent odor that comes off. After around 2-3 hours most of the chemical and smell are gone. After that this heater warms up a room pretty quick even on the first setting. My room is fairly small so I am not sure if the first setting could warm up a much larger room. Using the third setting burns approximately 1500W compared to 700W at the first setting so there is a massive energy consumption difference. Overall, this heater is going to keep me warm during the notoriously long and cold Wisconsin winters!