This unit works quite well, now. I have to say first that it didn't work well when I first tried it. I threw some damp boots on, cranked it to 90, and walked away. 2 hours later it was still running. What? I twisted the dial to zero, let it turn off, and then started it again. 8 hours, and a nights sleep later, it's still running. Not good! I figured out that the timer was getting stuck at the 60 minute mark, so I took it apart, scraped off and smoothed out some rough spots in the cast plastic, See full review