It starts with your blower which is usually located on passenger side under dash then blows thru a sealed vent thru your heater core then from there goes thru almost like a sealed box that controls which vents it goes to depending on what your setting are on.
the vents work because of the heat which can make the hot air balloon go up
the vents work because of the heat which can make the hot air balloon go up
Don't know what vehicle you have but, sounds like the duct work came apart for the middle vents.
The heat is transfered from the front vents and does not work when the defrost mode is on. www.trailvoy.com
The heat will also work when the car is turned on, but not moving. It uses heat from the engine.
Air Condition, Heat, Air Vents, seat position, and steering wheel
An air conditioner evaporator is the part of the a/c system that the heat in your car transfers to causing cool air to blow from your vents. The blower is in front of it and it sucks air from the inside of your car and across the evaporator then blows out your vents.
There are heater doors on the heat blower box that direct the path of the heat. Apparently the heater door to the floor vents is stuck closed.
There are several different types of heat vents. Vents come in metals such as aluminum, copper, stainless steel, bronze, and brass.
AC VENTS are in the correct position if they are open and free flowing. Some systems have a heat and an AC position for the vents. The AC position is so the cool air discharges from the vents higher on the walls or from the dash rather than floor or windshield in a car.
u need to replace the heater core in your car
Smoke could be coming from the vents of your car for a number of reasons. You may have an internal car fire.