April 2007 Issue
Portable Preheaters: Propane vs. Electric
They both do the job, but the venerable old Red Dragon from Flame Engineering heats faster and with a satisfying roar.
If you live where the weather rarely falls to 20 degrees, you probably can’t justify an expensive installed preheater of the type we reviewed in the March 2007 issue of Aviation Consumer. But if you still need an occasional preheat, where does that leave you? A heated hangar is one option and portable preheaters are another. Assuming the hangar is out, for this article, we’re examining two portable options: the old standby Red Dragon from Flame Engineering and a new gadget called AeroTherm, an electric preheater.
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