Janice asked: I wonder how many watts this thing needs as if i need to use rechargeable batteries or a generator (for power adaptor to run). Wattage makes big difference - are my batteries going to die after 15 minutes?
Thermoelectric Fan Powered by a Candle Better writeup than many. Looks good due to heatsink used. A Thermoelectric generator powered by a tealight. It started as an experiment of how much power I could get from one candle. But I liked the idea and it wo