Its convection.
Car heaters need a few moments to warm up.
You need to get your car checked.
when you turn the heat on it comes out of the motor compartment in to the car,, further cooling the engine. A good thing to know if your car is running hot: turn the inside heat on full blast to help cool it down some.
You have a blocked radiator.
takes the heat away from engine low coolant??
Then you can go back and turn on the heat vent :)
No heat when you turn it on in the car.
How do you turn on the car heat on a 2013 kia sorento
More then likely, your thermostat is sticking. When this happens, your car tends to overheat. If you turn on you heat, it keeps your car from overheating for a little longer then if you left it off. If you see your car is starting to get hot, turn on your heater, but try to get to wherever you needed to go, or to the nearest trustworthy mechanic.
Turn your thermostat to 40*. That oughta do the trick. I have tried that and it did not go off the onle way to turn it off now is to turn the car off
If this is about a car: the heater in a car is basically another radiator, but this one sitting inside the car. When you turn the heater on you draw heat from the engine and into the car. If you aren't running the car hard enough the temperature in the engine will drop.
I guess it's always running so when you turn it on you don't have to wait for it to heat up because its still warm, unlike when you turn the heat on in a car and cold air comes out and you have to wait for it to heat up. :(