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Yeah, you're right - there probably aren't that many crashes caused by combustion heater malfunctions. Maybe it's the psychological aversion to the scenario - drifting peacefully off to sleep under the influence of carbon monoxide somehow doesn't seem as bad.
Of course, electric heaters risk electrical fire, and muff heaters risk carbon monoxide poisoning (although a good digital read-out carbon monoxide meter with alarm would mitigate that risk). I wonder how these three heater options compare in terms of crashes per 100,000 hours flown? Maybe combustion heaters are actually safer than muff-type heaters?
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Paul
T337C
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