914 Muffler Temp

With the fire sleeve you should be good.

I agree with Sam. You should be good.

Thanks Guys, I didn’t want to go on a post maintenance flight and have smoke or worse.  I’m pretty sure the cable wouldn’t take those temps well. 

there aren’t a lot of options to route the electric cord to put on the block heater. 

On my 914 I put the heating pad at the bottom of crankcase at #2 cylinder with the wire facing the propeller. Over 100 hours with no issues or fire sleeves.