Differences in air pressure.
Hurricanes take place in water, but it also takes place in the atmosphere when hot air meets cold air.
technically hot air does not really rise it is the cold air that sinks below it because it is more dense.
Hot air rises, so is lighter than cold air.
cold air go up hot air go down.
Electric fan heaters work because they have a powerful electric fan inside, which sucks in cold air from the room. The fan then blows the air through an electrically heated element and that hot air then comes out of the fan heater into the room.Electric convector heaters work in a different way: inside they have large heating elements similar to - but bigger than - the elements inside a bread toaster.When the electricity is switched on the element gets hot and heats up the air that is all around it.Because hot air is lighter than cold air, the hot air rises up and comes out, into the room, through the grilles at the top of the heater. Cold air from the room moves in through the grilles at the bottom of the heater to take the place of the cold air, and this process continues for as long as the heater is switched on.Any movement of air in that way - cold air taking the place of hot air moving up - is called "convection", which is why the appliance is called a convection heater.
The Air Conditioner is on
Well the main reason why your car blows out cold then hot is because the air conditioner may not be working properly. You should go to the car shop and get it fixed.
it could be the heater core and ac housing unit that allows hot air to be mixed with the cold air or it could just cancel out the cold due to the motion of the car
There is a door behind the dash that changes cold and hot air flows. The door is probable stuck or the control circuit has failed causing the hot air to blow on cold.
Try getting it recharged.
The system is low on freon...........
we changed radaitor & thermastate , now heater blows cold air
sounds like there is short in the flux condenser that senses the pressure change in the differing temperatures KansasCity Computers
can you please clarify what you mean, do you mean that the front heater blows cold but the rear blows hot or do you mean that when the heating is on cold it blows hot? many thanks paul
Answering "Why would the AC blow cold air on the drivers side while hot air blows on the passengers side even when all controls are set on cold 1997 Oldsmobile Aurora ?
well, blow dryers are a good type of way to dry your hair and it blows HOT air but if you use cold air its still okay. but to cold would make your hair freeze so i would probably say hot air
Blows hot or cold air (as selected) through the ductwork behind the dash.