I have a Tanis preheater on my O-360 C-172F. Heats all four cylinders
and the oil. During the winter I keep a little appliance timer at the
hangar. If I am going to fly the next morning and the temperature is
below 30F-40F I set it to come on and give me about 4 hours of preheat.
I cover the cowl in a blanket and plug the front openings. I also put a
drop light on the rudder peddles and let the heat from the 75W bulb keep
the instruments warm.

Ross

Andrew Gideon wrote:

Ray Andraka wrote:

A pager operated one would be a cheaper service. I'm contemplating
picking up a
cheap pager and wiring it to a box to do just that. Tanis sells a box
that listens for the pager's beep, although it is pricey.

I posted about this on the club's mailing list. Someone replied that
electric heating should be watched as protection against arcing (and some
nasty consequences of this).

But it seems from my reading of this thread that people are using electric
heat unattended.

I'm puzzled by the conflict.

- Andrew