I bought one of the little buggers (1500 w) last year in Canada for about $5 (US). It's great to heat the bathroom right before a shower, but I think I should get others. The cost of heating oil is rumored to possibly go up to three times last year, and it was up last year.

Good info, John. This little box I have is primarily made up of fan. Perhaps the bigger units just have a bigger fan.