The things we do for our hobbies...Admire your dedication. A ceramic heater [probably about $30-$40 for a decent one] should help you out, and are available at most big box stores. They are pretty energy efficient, and have auto shut-off's if case they get too hot. Only other advice I could give is to use more insulation, but I'm sure you thought of that...

Nelson

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"Stickum' Christ pop-um'!!"