This morning I went up with a friend to a local airport to look at an Allegro 2000 that is for sale. It has a Rotax 912ULS up front. During the look see, the sales guy pointed out an electrical cord with a typical 3 prong electrical plug and explained it was for a pre-heater to warm the ignition modules.prior to starting - recommended by Rotax. I don't ever remember this being recommended or being discussed on any of the email lists or forums in the 20 + years I have been following Kitfox. Anyone's here use a pre-heater specifically to warm the ignition modules to aid in starting a Rotax engine or ever heard of such a recommendation?