Here Are The Top 10 Best Energy-efficient Air Conditioners 2018

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This list of the latest energy-efficient air conditioners includes only air conditioners that satisfy these specs:

  • They must have an energy-efficiency ratio (EER) of 11 or above, which is kind of rare, and a similar combined energy-efficiency ratio (CEER)
  • They may, but do not necessarily have to be Energy-Star accredited
  • When not specified, Energy Star efficiency ratings specified in annual cost are generally based on a 12 cents per Kwh electricty rate and 8-hour-per-day use over 3 months)


The List:


X
Best Model 2018*
Alpha
Rank:
#1
Our
Score:
4.5
Confidence
Level:
High
* How do we know? Here is how we rank items...

Considering this energy-efficient air conditioner's aggregate ranking of 93%, we believe that the Frigidaire FFRE1833S2 is currently Alphachooser's best energy-efficient air conditioner 2018. Furthermore, we think that our sample of 65 reviews from our sources gives us a high confidence level (more on confidence levels) that justifies labelling it a "no-brainer best choice."

Energy Star annual cost: $137
Cooling (BTU) rating: 18000 (Listed as 18000/17700)

Average rating:
(93%) (65 reviews over 2 sources)   
Second Best
Alpha
Rank:
#2
Our
Score:
4.5
Confidence
Level:
Great

With its 4.5 stars computed from 139 reviews, here is what we consider second best energy-efficient air conditioner. * By the way, this list is based on a full analysis of hundreds of energy-efficient air conditioner reviews from around the web.

Average rating:
(88%) (139 reviews over 3 sources)   
Second opinion?

Amazon ranks the best air conditioners by shopper's choices... Check today's ranking
Also Good
Alpha
Rank:
#3
Our
Score:
4.5
Confidence
Level:
Great

EER: 12
Energy Star annual cost: $75

Average rating:
(86%) (751 reviews over 4 sources)   
Also Good
Alpha
Rank:
#4
Our
Score:
4.5
Confidence
Level:
High
Why is a higher score ranking under a lower score?

Energy Star annual cost: $61
Cooling (BTU) rating: 7500

Average rating:
(87%) (75 reviews over 3 sources)   
Also Good
Alpha
Rank:
#5
Our
Score:
5
Confidence
Level:
OK

Energy Star annual cost: 44

Average rating:
(97%) (24 reviews over 2 sources)   
Also Good
Alpha
Rank:
#6
Our
Score:
4.5
Confidence
Level:
High

EER: 11.1 (11 combined energy efficiency ratio)

Average rating:
(88%) (55 reviews)   
Also Good
Alpha
Rank:
#7
Our
Score:
4.5
Confidence
Level:
Great

Energy Star annual cost: $115
Cooling (BTU) rating: 15100

Average rating:
(86%) (255 reviews over 2 sources)   
Also Good
Alpha
Rank:
#8
Our
Score:
4
Confidence
Level:
Great

Energy Star annual cost: 48.15

Average rating:
(82%) (215 reviews over 2 sources)   
You Should Also Check Out: Top 10 Best Smart Air Conditioners 2018
Also Good
Alpha
Rank:
#9
Our
Score:
4
Confidence
Level:
High

Average rating:
(84%) (77 reviews)   
Also Good
Alpha
Rank:
#10
Our
Score:
4
Confidence
Level:
High

EER: 11.3
Energy Star annual cost: $96

Average rating:
(82%) (62 reviews over 3 sources)   

EER: 11.1
Energy Star annual cost: 71
Cooling (BTU) rating: 8000

More energy-efficient air conditioners, sorted by the latest model first:

Energy-efficiency ratio (EER): 12

EER: 11
Energy Star annual cost: 99
Cooling (BTU) rating: 12000

Average rating:
(71%) (8 reviews over 2 sources)   

EER: 12.2

Average rating:
(90%) (5 reviews)   

Cooling (BTU) rating: 6000

Average rating:
(68%) (10 reviews)   

Energy Star annual cost: $60

Average rating:
(66%) (24 reviews over 2 sources)   

EER: 11.2
Energy Star annual cost: $49

Energy Star annual cost: $50

Average rating:
(72%) (9 reviews)   

Energy-efficiency ratio (EER): 11
Energy Star annual cost: $41
Cooling (BTU) rating: 5000

Average rating:
(76%) (26 reviews over 2 sources)   

Average rating:
(70%) (45 reviews)   

Energy Star annual cost: 74
Cooling (BTU) rating: 10000

Average rating:
(66%) (12 reviews)   

EER: 11.9
Energy Star annual cost: 136
Cooling (BTU) rating: 18000

Average rating:
(68%) (42 reviews)   

Average rating:
(74%) (83 reviews over 2 sources)   

Energy Star annual cost: ? (hOmeLabs states that it costs 41 dollars annually)

Average rating:
(80%) (338 reviews)   

EER: 11.5
Energy Star annual cost: $47

Average rating:
(81%) (370 reviews over 2 sources)   

Energy Star annual cost: $89

Average rating:
(81%) (364 reviews over 3 sources)   

Energy Star annual cost: $74

Average rating:
(81%) (239 reviews over 4 sources)   

Energy Star annual cost: $53

Average rating:
(82%) (72 reviews over 3 sources)   

Energy Star annual cost: $53 (at the rate of 13 cents per kWh)

Average rating:
(78%) (53 reviews over 2 sources)   

EER: 11.20
Cooling (BTU) rating: 14000

Average rating:
(84%) (8 reviews)   

Average rating:
(81%) (519 reviews over 4 sources)   

Energy Star annual cost: $90

Average rating:
(82%) (597 reviews over 3 sources)   
You Should Also Check Out: Top 10 Best Wall Air Conditioners 2018

EER: 12.2 (12.1 combined)
Energy Star annual cost: $37

Average rating:
(77%) (513 reviews over 3 sources)   

Average rating:
(73%) (444 reviews over 2 sources)   

EER: 12.0

Average rating:
(52%) (452 reviews over 3 sources)   

Average rating:
(82%) (1863 reviews over 2 sources)   

Average rating:
(77%) (913 reviews over 3 sources)   

Energy Star annual cost: $64

Average rating:
(77%) (585 reviews over 2 sources)   

Energy Star annual cost: $40

Average rating:
(77%) (385 reviews over 2 sources)   

Energy Star annual cost: $149
Cooling (BTU) rating: 18500

Average rating:
(72%) (28 reviews over 2 sources)   

Average rating:
(82%) (81 reviews over 3 sources)   

Average rating:
(72%) (233 reviews over 3 sources)   

Energy-efficiency ratio (EER): 12.2 (12.0 combined)
Energy Star annual cost: $101
Cooling (BTU) rating: 13700

Average rating:
(70%) (12 reviews)   

EER: 12.3 (12.1 combined)
Energy Star annual cost: $42
Cooling (BTU) rating: 5800

Average rating:
(60%) (31 reviews over 3 sources)   

Energy Star annual cost: $63

Average rating:
(81%) (27 reviews over 3 sources)   

Average rating:
(76%) (682 reviews over 2 sources)   

Average rating:
(52%) (5 reviews)   

Average rating:
(80%) (2780 reviews over 3 sources)   

EER: 11.3 (11.2 combined)

Average rating:
(70%) (5935 reviews over 3 sources)   

Average rating:
(76%) (204 reviews over 4 sources)   

Average rating:
(78%) (323 reviews over 3 sources)   

Average rating:
(76%) (24 reviews)   

Energy Star annual cost: $144

Average rating:
(61%) (27 reviews over 2 sources)   

Average rating:
(75%) (28 reviews over 2 sources)   

Cooling (BTU) rating: 5100

Average rating:
(80%) (25 reviews)   

Average rating:
(71%) (156 reviews over 3 sources)   

Average rating:
(77%) (147 reviews over 2 sources)   

Average rating:
(74%) (219 reviews)   

Average rating:
(84%) (77 reviews)   

Average rating:
(86%) (201 reviews)   

Energy Star annual cost: $88
Cooling (BTU) rating: 11900

Average rating:
(95%) (15 reviews over 2 sources)   

The Frigidaire FFRE1233Q1 12000 BTU features a sleep mode that gradually increases the temperature by a few degrees (balancing it against the evening cold) as a method to save energy while you sleep.

Average rating:
(65%) (403 reviews over 2 sources)   

The LG LW8014ER 8000 BTU pushes air at 250 cubic feet per meter using a classic 4-way air deflection system.

Average rating:
(71%) (335 reviews over 2 sources)   

Average rating:
(74%) (66 reviews)   

Average rating:
(72%) (69 reviews)   

The Frigidaire FFRE1033Q1 10000 BTU has an 11.3 energy efficiency ratio, which is in the highest bracket in the 10000 BTU class.

Average rating:
(67%) (436 reviews over 2 sources)   

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