How high off the floor should a through the wall air conditioner be installed. I have 8 foot ceilings.?

Question

This is a new installation on a older home. Walls are 2x4 construction. I plan on putting in the proper headers but dont' know how high to make the unit. Thanks

Answer 1

Ideally, it should be installed as high as possible so that it draws in the hot air that accumulates near the ceiling.  When planning the location remember that you will have to service the unit (remove, clean & replace filter, etc.) so put it in a place under which a ladder can easily be located (not above heavy furniture).

Answer 2

as close to the ceiling as possible

Answer 3

Since cold air seeks lower spaces, I would mount the air conditioner closer to the ceiling where it would draw in the warmer air.

Answer 4

way back  ,,before they had remote controls,,ac was mounted bout  6 feet  from floor to top of unit,,it s probably  still  a good installation height,,,or  for looks mount  the top  of unit,, same height as  door or window casings,,,, which is usually   6' 8" to 6' 11 "

Answer 5

Place it a 6' so the cold air is heavy and sinks to the floor and this gives the air a longer reach into the room.

Answer 6

I would first select the unit. The control panel will help you determine how high to locate the unit. Todays window unit have very powerful fans to push cold air and suck in return air so you don't need to think you have to put them up high in the wall.

Think about security. If you live in an area where your new ac unit would be an invitation for a thief, I would put it up high in the wall, this also allows you to not worry about banging your head on it if you are outside doing garden or lawn work around the unit.

Check the length of the cord on the new unit so you can plan for an outlet, and check the plug configuration so you can get the correct receptable configuration for this unit.

If you install a header put the bottom of your header at a standard height which is 6'10+1/2" or 82-1/2" from the finished floor level.

If controls are mounted high on the front of the unit, then install it lower so controls are easily read and used.Also allow about 1/2" extra when you measure the cabinet of the window unit on height and width. This will let you slide the cabinet housing into your new hole easily. You can then use 100% clear silicone to fill up any small gaps around the outside of the cabinet.

Good Luck

Answer 7

I don't think it matters. Motel rooms have it near the floor. As long as you use a ceiling fan, height shouldn't matter.