the cooling fins on a cylinder then duct that to the heater control. It
works fine, I rarely have to put it on full to keep warm.
I would fly in not much colder than -10 degrees C though.
It is really simple and safe because you are not ducting air from around the
exhaust pipe.
If you have the speed cowl and high performance exhaust system, finding a
place to put the muff can be a problem.
Cheers
Alister
I have a question for you boys up north. Do you find a single heat muff
enough to warm your feet or is two heat muffs needed to heat the cabin
comfortably?
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