Still researching the idea of purchasing/using a stove for next year. How can I find out (caluclate) how much electricity my box fan uses if I intend to use it to circulate heat through the house? I have a 1900sf ranch style house and will need to get heat to bedroom end of the house. My purpose is trying to keeping heating costs down so just wondering if burning wood would save $ or not if I have to run the fan all day/night. During the weekends, I've been burning my fireplace and using the fan. It does a good job of keeping the house at 65 (got to the teens last night).