Yes vents can be in the floor instead of the wall.
Cold air return vents are the ones on the wall
No, floor vents will not help in cooling your house since they are only used when your air conditioner is on. Fans are the cheapest way to cool a home down.
Cose the high vents in the winter and low in the summer..
you need to replace the vacuum.
The floor HVAC vents are typically located on the floor near the walls in a room.
You will need to cut into the brickwork and install them to comply with local building regulations.
in the floor.
on the floor on the floor
Return air vents.........
Might be a blockage in the ductwork somewhere.
should be on floor.
the middle vents only supply air from the ac unit using a separate in dash fan. the floor and defrost vents come only from the heater