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The Latest 21-inch-wide Air Conditioner Models as of February 2024

AlphaChooser's list of 21-inch-wide window air conditioners includes only units that are between 20 and 21.5-inch wide and lists the best ones, according to our unique ranking system.

The List :
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21.2
-inch
wide
12.4
in.
high
42
dB
Noise Level
  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets
21
-inch
wide
18
in.
high
8000
BTU
Cool rating
43
dB
Noise Level
  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets
Why The Paris Rhone AC003?
  1. 53 ratings were analyzed across 2 sources, resulting in a 8.1/10 average.


  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets
Why The Paris Rhone AC003?
  1. 53 ratings were analyzed across 2 sources, resulting in a 8.1/10 average.

#3 : Friedrich KCQ10A10B 21-inch Wide Air Conditioner

21.38
-inch
wide
14.2
in.
high
9500
BTU
Cool rating
11.0
EER
  • Energy Star Compliant
  • Wi-Fi Enabled
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Wi-Fi Enabled
  • Fits 115-120V Power Outlets

#4 : GE AHEL08BB 21-inch Wide Air Conditioner

21.2
-inch
wide
12.4
in.
high
8000
BTU
Cool rating
51
dB
Noise Level
  • Window Mounting Kit
  • Wi-Fi Enabled
  • Remote control
  • Fits 115-120V Power Outlets
Why The GE AHEL08BB?
  1. 8 ratings were analyzed across 2 sources, resulting in a 8.2/10 average.


  • Window Mounting Kit
  • Wi-Fi Enabled
  • Remote control
  • Fits 115-120V Power Outlets
Why The GE AHEL08BB?
  1. 8 ratings were analyzed across 2 sources, resulting in a 8.2/10 average.

You Should Also Check Out: Top 10 Best Smart Air Conditioners 2024
21.2
-inch
wide
12.4
in.
high
42
dB
Noise Level
  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets
You Should Also Check Out: Top 10 Best Quiet Air Conditioners 2024
20.1
-inch
wide
15
in.
high
14000
BTU
Cool rating
54
dB
Noise Level
  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
12.44
in.
high
8100
BTU
Cool rating
43
dB
Noise Level
  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets
21.4
-inch
wide
14.5
in.
high
10200
BTU
Cool rating
  • Window Mounting Kit
  • Remote control
  • Dehumidification Mode
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Remote control
  • Dehumidification Mode
  • Fits 115-120V Power Outlets
21
-inch
wide
16
in.
high
12100
BTU
Cool rating
  • Window Mounting Kit
  • Remote control
  • Dehumidification Mode
  • Fits 115-120V Power Outlets
Why The Gree 12000 BTU?
  1. 509 ratings were analyzed across 2 sources, resulting in a 9/10 average.


  • Window Mounting Kit
  • Remote control
  • Dehumidification Mode
  • Fits 115-120V Power Outlets
Why The Gree 12000 BTU?
  1. 509 ratings were analyzed across 2 sources, resulting in a 9/10 average.

21.25
-inch
wide
12.43
in.
high
6150
BTU
Cool rating
43
dB
Noise Level
  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Remote control
  • Fits 115-120V Power Outlets
21.3
-inch
wide
15.7
in.
high
10000
BTU
Cool rating
83
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.4
-inch
wide
14
in.
high
8000
BTU
Cool rating
42
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.38
-inch
wide
15.75
in.
high
12000
BTU
Cool rating
65
dB
Noise Level
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
12.44
in.
high
6150
BTU
Cool rating
52
$
Annual Cost
  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Wi-Fi Enabled
  • Alexa-compatible
  • Remote control
  • Fits 115-120V Power Outlets
21.38
-inch
wide
15.75
in.
high
10000
BTU
Cool rating
65
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21
-inch
wide
12.75
in.
high
8000
BTU
Cool rating
65
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
12000
BTU
Cool rating
55
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets
21.25
-inch
wide
13.44
in.
high
8000
BTU
Cool rating
44
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
12000
BTU
Cool rating
55
dB
Noise Level
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
12050
BTU
Cool rating
97
$
Annual Cost
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
20.94
-inch
wide
12.75
in.
high
8000
BTU
Cool rating
60
$
Annual Cost
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
10000
BTU
Cool rating
80
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
13.4375
in.
high
6000
BTU
Cool rating
41
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
10000
BTU
Cool rating
55
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets
20.9375
-inch
wide
12.75
in.
high
8000
BTU
Cool rating
55
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Anti-bacterial Filter
  • Fits 115-120V Power Outlets
21.25
-inch
wide
12.44
in.
high
6000
BTU
Cool rating
12.2
EER
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
20.125
-inch
wide
15.125
in.
high
10000
BTU
Cool rating
74
$
Annual Cost
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
13.44
in.
high
6000
BTU
Cool rating
41
dB
Noise Level
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.34
-inch
wide
15.75
in.
high
10000
BTU
Cool rating
74
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
20.94
-inch
wide
12.75
in.
high
8000
BTU
Cool rating
60
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
12.44
in.
high
8000
BTU
Cool rating
64
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21.25
-inch
wide
12.44
in.
high
6050
BTU
Cool rating
49
$
Annual Cost
  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Window Mounting Kit
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
21
-inch
wide
14.80
in.
high
12000
BTU
Cool rating
89
$
Annual Cost
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets
20.88
-inch
wide
12
in.
high
6000
BTU
Cool rating
45
$
Annual Cost
  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets

  • Energy Star Compliant
  • Remote control
  • Fits 115-120V Power Outlets


This page offers a low-ad experience, in exchange for "Check Price" and review links to lead to the stores you know, which pay us a commission that has no effect on your price. Items are chosen independently (regardless of price) by our computer review crawler and commented by human analysts. Read more about our constantly-updating unique ranking system


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