Mitty wrote in
:

Hangar flying today, one high-time CFII, MEI, etc. expressed concern
with leaving the pitot heat on in warmer weather. Says he wants the
heat in clouds so the pitot doesn't fill up with mist/moisture/water
but he turns it off in the clear for fear of burning it out.

I've never heard or read about either of these issues before.
Comments?

It's an electric heating element, and has a finite lifetime just like the
heating element in your electric range. Another problem can happen if
you miss the checklist item for turning it off, and someone on the ground
walks up and grabs it. Instant cooked palm. I only use it when
necessary.

--
Regards,

Stan