Production heated windshields in aircraft have thermistors to prevent
overheating, acrylic or glass. Your idea is valid if you can control the
temperature.

D.
++++++++++++++++++++++++++++++++++++++

I suspect the heat is controlled to a safe level
by the resistance of the heating element itself.

This type of system won't meet the needs of an icing
Lear Jet at 50,000 feet, but it is sufficient for cars...
or aircraft that have no need of high wattage termistor
designs operating @ - 40 degrees F and .8 mach.

Barnyard BOb - K.I.S.S.