system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that a hairdryer can get hot in a matter of seconds, but a car’s air conditioner/heat can take several minutes to heat up?
gpt
Hair dryer is pretty much just an electric element that gets hot as soon as its energized (turned on).

Air conditioner is a series of mechanical components that work together to take heat from one space and absorb it into a refrigerant (liquid/gas inside the unit) by manipulating the pressure of the refrigerant by a process of compressing and expanding to expel that heat to another physical location. Therefore its a bit more of a process then just turned on a switch.