I have a Red Dragon that I put into a leather case (with a hole on the side
for the air output and another for the input). I also can fit 2 portable
propane bottles in the case. On the wall of the case, I put two bolts that
the power leads clip to. After that I carry a little coleman 12v power
source that clips on the bolts outside of the case.

It'll preheat maybe 5 or 10 times with the bottles and power before
recharge. I throw it in the baggage area in the winter and it weighs about
30 lbs.

It's invaluable for XC trips in the winter.

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"Tony Roberts" wrote in message
...
Hi
I'm looking for a preheater for my 172.
I don't have a power source near my tiedown.
I don't own a generator.
Because of all of the above I'm looking for a propane powered preheater
but I can't find one.
Any recommendations? Any reason why I shouldn't buy a propane one.