This is a seriously good bit of kit. Arrived today and was put into action straight away. The fan was really quick to start and got of a good speed, which it maintained even after the log burner was cooling down. I got it to supplement an old 2 blade fan I had and this was a good 10 mins quicker to start and stayed going a good 20 mins after the old one stopped. V pleased. The thermometer is a nice add on, no real idea if these are any good but adds a final touch.