Window AC unit, Buying guide
Window AC Unit
Buying Guide
Choosing The Right Size Window Air Conditioner
Selecting the correct BTU's Is simple.
1. Determine the room's square footage
Determining the floor square footage of the area to be cooled takes simple math. Just use the following formulas. 9 in = .75 ft. 6 in = .5 ft. 3 in = .25 ft. Always measure in feet, converting the inches to fractions of a foot For example: 12 ft., 6 inches, is 12.5 ft.
- Square and rectangular rooms:
Multiply the full length of the room by its width. - Triangular rooms:
Multiply the length of the area by the width and divide by two. - Complex room shapes:
Sub-divide into squares, rectangles and triangles. Then use the formulas above to determine the total square footage.
Now you should have the SQ FT Of The Room.
2. Find the correct cooling capacity for your room size
| Area To Be Cooled (square feet) | Capacity Needed (BTUs per hour) |
|---|---|
| 100 up to 150 | 5,000 |
| 150 up to 250 | 6,000 |
| 250 up to 300 | 7,000 |
| 300 up to 350 | 8,000 |
| 350 up to 400 | 9,000 |
| 400 up to 450 | 10,000 |
| 450 up to 550 | 12,000 |
| 550 up to 700 | 14,000 |
| 700 up to 1,000 | 18,000 |
| 1,000 up to 1,200 | 21,000 |
| 1,200 up to 1,400 | 23,000 |
| 1,400 up to 1,500 | 24,000 |
| 1,500 up to 2,000 | 30,000 |
| 2,000 up to 2,500 | 34,00 |
3. Adjust as necessary
Make any adjustments for the following circumstances:
- If the room is heavily shaded, reduce capacity by 10 percent.
- If the room is very sunny, increase capacity by 10 percent.
- If more than two people regularly occupy the room, add 600 BTUs for each additional person.If the unit is used in a kitchen, increase capacity by 4,000 BTUs.
- Consider where you install the unit. If you are mounting an air conditioner near the corner of a room, look for a unit that can send the airflow in the right direction.
Installing The Window AC
Do I need to have my AC installed by an insured professional:
- You live in a highrise building
- Your building or landlord requires it
- The AC unit is to heavy for you to lift
- The AC unit is to complex for you to install
- You don't have the tools for the job
You can learn to Install the AC unit by searching for videos on Youtube AC installation Videos
Type of AC for my window
Double-Hung windows
Casement windows
Casement Air Conditioners
Through-The-Wall AC
Friedrich WallMaster, built-in sleeve required