Return air vents in a typical HVAC system are usually located on the walls or ceilings of a room, allowing air to flow back into the system for heating or cooling.
In my opinion where the supply vents are located is not as important as where the return air vents are located. the supply vents should be located towards the outer walls if possible. the return air vents should be located towards the center of the dwelling if possible. every effort should be made to get the return air vents as high as possible on the wall , if not in the ceiling.Remember you are trying to get the warm air back to the a-coil so it can be pumped outside through the refrigeration lines to the condensing unit. if the ductwork is used for heating also you should put some return air vents down low to get the cool air to the furnace. This is my personal opinion and may not be everyones.
Return air vents.........
Cold air return vents are the ones on the wall
Near The Floor
The number of return vents needed for central air depends on the size and layout of the home, as well as the capacity of the HVAC system. Generally, it's recommended to have one return vent for every 1,000 square feet of living space, but homes with multiple stories or rooms may require additional vents for optimal airflow. Consulting with an HVAC professional can provide a more tailored assessment based on specific needs and system design.
Yes vents can be in the floor instead of the wall.
The floor HVAC vents are typically located on the floor near the walls in a room.
The vents outside the house are typically located on the roof or on the sides of the house near the ground.
No. Doors will suffice.
In HVAC systems, the air typically flows from the supply vents to the return vents.
House vents are typically located both inside and outside the house. Inside the house, vents are usually found in ceilings, walls, or floors to allow air to circulate. Outside the house, vents are often located on the roof or walls to allow for proper ventilation.
Cose the high vents in the winter and low in the summer..