On Sat, 30 Sep 1995, Tobin T. Copley wrote:

[ceramic heaters used in the garage to warm up T2 prior to takeoff]
> 
> 'Course, you need to be hooked up to 110V AC to run it, so it doesn't do 
> you much good on drives longer than a few minutes in really cold weather.

    If you had a battery devoted to the heater, how many minutes
    could you run it with an inverter? Wild guesses welcome.