I wired a switch to run the furnace fan without the flame on to keep the belly warm. It doesn't care for Chicken soup, so that was all I could do..
It is real simple, just get a switch, some 2-wire thermostat wire, a few electrical connectors. All available at Radio Shack, or any auto parts store.
Just tap into the fan wire at the printed circuit board, tap into a 'hot' 12 volt wire and there you is.
Slide-show:
http://s112.photobucket.com/albums/n194/JimsSue13/Ozzsmods101/Electrical%20pics/Furnace%20fan%20control%20switch/
The reason for this is when you use electric heat, no warm air is in the belly, and stuff will change state: liquid to solid.. not good.
Use the thermometer in the other thread, or get a cool remote-read electronic thermometer you can't find the right batteries for.
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