ac is making fan run more
Thermostat will open sooner car may not necessarily run cooler
AC runs on the battery. If the car is off and you run the AC, then start the car, it will stall.
yes it does it makes the engine run at a higher rpm to run the ac compressor
This is normal for most vehicles when the ac is turned on.
Without an AC condenser, yes. I advise disconnecting the AC compressor so it won't run dry on lubricant.
the drain hose is plugged
The ac unit is a tax on the engine to run. This is true with all vehicles. Having the ac on will make the engine work harder to run the ac compressor. This makes the engine run hotter.
Only when your car engin runs.
The power supply in most cars is DC. The alternator may produce AC power, but it is then run through a rectifier, providing DC power.
yes their the same engine the only problem you might run into is ac on the other car or your car if not properly done you may not have ac in your current car
you can use as much as you like as it makes the car run cooler
Ac/dc