I'm using that as well and its fine, quite basic and simple. My one niggle with it was that it doesn't have a timer on it and, pedant that I am, I tried and failed to do 8 hours exactly. However since we had no ill effects I have come to the conclusion its not THAT critical! We use it overnight - is about the right length of time and get cheap electricity too. You could plug it into a timer switch, though, if you did want it to start and stop at particular times.