This happens in most cars the moment you put the front defroster on.
In a normal car running the heat is a nothing burger. It uses a small radiator on the firewall to get hot, then blow cold air over the heated radiator. The coolant cold off(in the winter) and air heats up.
To get the same thing in an ev the heat is now produced electrically (like a toaster) and a motor turns the a/c compressor and then blows that DRY (if not cooled) air across the heater.
It’s very, very inefficient.
“To get the same thing in an ev the heat is now produced electrically (like a toaster) “
Tesla uses a reverse cycle compressor.
I will make a fortune selling APUs I get from the aircraft scrap yard for these stupid EVs.