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Check the guide below and see.
Instructions
1. Measure the room to be cooled in
square feet.
2. Select the region (1, 2, or 3) that
best fits your location from the map.
3. Using the chart corresponding to
your region, find the column marked
(Size of Area to be Cooled in square
feet).
4. Reading down the column, select a
number that most closely matches
your room size.
5. Follow this row across to the
column that describes the air
conditioner exposure direction, and
room characteristics.
6. The number you select will be the
approximate btu size needed to
cool your room.
Additional conditions:
· If average occupancy of area is more than two people, add 600 Btu/hour per person. If average is one person, subtract
600 Btu/hour.
· Add 1200 Btu/hour if area includes a kitchen.
· If room is heavily shaded, subtract 10 percent from capacity. Increase capacity by 10 percent if area is very sunny.
Note: For best results, select a room air conditioner with cooling capacity (Btu/hour rating) closest to, but not exceeding,
estimated size.
Size of
Area to
be
Cooled
(in
R
square
feet)
150
E
200
250
300
G
350
400
I
450
500
550
O
600
650
N
700
750
800
850
1
900
950
1000
1100
1200
1300
1400
Do you have the right size air conditioner
for the room you want to cool?
NORTH OR
SHADED
Required Air Conditioner Cooling
Capacity Btu/hour
3,200
3,500
4,400
3,600
4,000
5,200
4,000
4,400
5,900
4,300
4,900
6,600
4,700
5,300
7,400
5,100
5,800
8,200
5,500
6,200
8,900
5,800
6,600
9,600
6,200
7,100
10,400
6,600
7,600
11,100
6,900
8,000
11,800
7,300
8,400
12,600
7,700
8,900
13,400
8,000
9,400
14,100
8,300
9,800
14,900
8,700
10,200
15,600
9,100
10,700
16,300
9,400
11,100
17,100
10,100
12,000
18,500
10,900
12,900
20,000
11,600
13,800
21,500
12,300
14,700
23,000
Eugene
Reno
Sacramento
Pueblo
Fresno
Flagstaff
Las
Vegas
Phoenix
Tucson
1
Region 1
EAST OR
SOUTH
Required Air Conditioner Cooling
Capacity Btu/hour
5,100
5,400
5,500
5,900
6,000
6,400
6,400
6,900
6,800
7,400
7,200
7,900
10,300
7,600
8,400
11,100
8,000
8,900
11,900
8,400
9,400
12,700
8,900
9,900
13,500
9,300
10,400
14,300
9,700
10,900
15,100
10,100
11,400
15,900
10,600
11,900
16,700
11,000
12,400
17,500
11,400
12,900
18,300
11,800
13,400
19,100
12,300
14,000
19,900
13,100
14,900
21,400
13,900
15,900
23,000
14,700
16,900
24,700
15,600
17,900
26,300
4
Fargo
Green Bay
Columbus
Wichita
Charlotte
Birmingham
San Antonio
2
Region 2
WEST
Required Air Conditioner Cooling
Capacity Btu/hour
6,200
6,200
6,500
7,000
6,600
7,000
7,800
7,100
7,500
8,600
7,500
8,000
9,400
7,900
8,500
8,300
9,000
8,700
9,500
9,100
10,000
9,500
10,500
10,000
11,000
10,400
11,500
10,800
12,000
11,200
12,500
11,700
13,000
12,100
13,500
12,500
14,000
12,900
14,500
13,400
15,100
14,200
16,000
15,000
17,000
15,800
18,000
16,700
19,100
Rochester
Albany
New
Haven
Atlanta
3
Region 3
7,300
8,100
8,900
9,800
10,600
11,400
12,200
13,000
13,800
14,600
15,400
16,200
17,000
17,800
18,600
19,400
20,200
21,000
22,600
24,200
25,800
27,400
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