WattCost

Data through June 2026

Room Air Conditioners · 309 certified models

Room Air Conditioners Under 24" Wide

Filtering to room air conditioners under 24" wide narrows the field to 309 of the 439 certified room air conditioners in this data, ranging $48–$248 a year at national-average electricity rates (median $92).

The 50 most efficient (of 309)

Room Air Conditioners Under 24" Wide, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Brothers 102372260$48
2Midea MWEUWA-05CRFN8-BCN4260$48
3Vissani VAW05V1KWT260$48
4TCL T05WV9M274$50
5TCL T05WV9MB274$50
6TCL T05WV9R274$50
7TCL T05WV9RB274$50
8TCL W5WC72274$50
9TCL W5WC72-B274$50
10TCL W5WC72M274$50
11TCL W5WC72M-B274$50
12Midea MAW06S1KWT-Amost efficient281$52
13Midea MAW06V1KYWT-Smost efficient281$52
14LG LW6023IVSMmost efficient290$53
15Midea MAW06U1QWTmost efficient298$55
16Midea MAW06V1QWBL-Tmost efficient298$55
17Midea MAW06V1QWTmost efficient298$55
18Midea MAW06V1UBLmost efficient298$55
19Midea MAW06V1UWTmost efficient298$55
20Midea MWAUQB-06CRFN8-BCN11most efficient298$55
21Hisense WCT06W25A329$60
22Midea MWEUWA-06CRFN8-BCM7329$60
23Seasons SW06VB1329$60
24TCL H6W4KW329$60
25TCL T06WQ2S329$60
26TCL T06WV9R329$60
27TCL T06WV9RB329$60
28TCL W6WC72329$60
29TCL W6WC72-B329$60
30TCL W6WC72-BI329$60
31TCL W6WC72-I329$60
32Vissani VAW06V1KWTS329$60
33GE PWJV08Wmost efficient375$69
34Midea 1010451315most efficient375$69
35Midea 1014242943most efficient375$69
36Midea MAW08U1QWTmost efficient375$69
37Midea MAW08U2QWTmost efficient375$69
38Midea MAW08V1WBKmost efficient375$69
39Midea MAW08V1WBK-Tmost efficient375$69
40Midea MAW08V1WWTmost efficient375$69
41Midea MAW08V1WWT-Tmost efficient375$69
42Midea MWAUQB-08CRFN8-BCP0most efficient375$69
43Midea MWEUWA-08CRFN8-BCP0most efficient375$69
44Midea MWFUWA-08CRFN8-BCP0most efficient375$69
45TCL T08WV3Smost efficient375$69
46TCL T08WV9Smost efficient375$69
47TCL T08WV9SBmost efficient375$69
48TCL W8WC72most efficient375$69
49TCL W8WC72-Bmost efficient375$69
50LG LW8022IVSM387$71

Other size facets

Questions, answered with the data

How much does it cost to run room air conditioners under 24" wide?
Among 309 certified models in this data, room air conditioners under 24" wide cost $48 to $248 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $92.
Do room air conditioners under 24" wide cost more or less than the average room air conditioner?
The median model here runs $92 a year, 6% less than the $98 median across all certified room air conditioners.
What's the cheapest model among room air conditioners under 24" wide?
The Brothers 102372 costs about $48 a year at the U.S. average rate (260 kWh/yr) — the lowest certified figure in this group.
What does the certified annual-kWh figure assume for room air conditioners?
The certified annual kWh assumes 750 cooling hours per year (the DOE standard). In hot climates real usage can run well above that; in mild ones, below.

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