Can be 30, 40, or 50 Amp 240 volt double pole depending on the HVAC specs.
No, especially since the AC is used when you defrost the windows.
vaporizer hvac. and tandom system ac
BOTH
A 24 volt heating only or a 24 volt heating/cooling (if you have ac on the unit)thermostat.
The Furnace fan is used to assist the AC in doing its job It is not heating at all just air distribution.
no, heating is identical
AC
60 cycle AC
the compressor is not running. Check your breakers.
Glove box & behind passenger headlight
THHN is used for AC power.
r134a