WattCost

Data through April 2026

Room Air Conditioners · 13 certified models

Room Air Conditioners Under 18" Wide

13 certified room air conditioners under 18" wide appear in this data, costing $52 to $130 a year to run at the U.S. average rate — median $52.

All certified models

Room Air Conditioners Under 18" Wide, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1TCL T05WV9M274$52
2TCL T05WV9MB274$52
3TCL T05WV9R274$52
4TCL T05WV9RB274$52
5TCL W5WC72274$52
6TCL W5WC72-B274$52
7TCL W5WC72M274$52
8TCL W5WC72M-B274$52
9Hisense WCT06W25A329$62
10Midea MWEUWA-06CRFN8-BCM7329$62
11GE Profile AHTR10ACH2483$91
12GE Profile AHTR12ACH2594$112
13GE Profile AHTR14AC689$130

Other size facets

Questions, answered with the data

How much does it cost to run room air conditioners under 18" wide?
Among 13 certified models in this data, room air conditioners under 18" wide cost $52 to $130 a year to run at the U.S. average electricity rate (18.8¢/kWh) — a median of $52.
Do room air conditioners under 18" wide cost more or less than the average room air conditioner?
The median model here runs $52 a year, 49% less than the $100 median across all certified room air conditioners.
What's the cheapest model among room air conditioners under 18" wide?
The TCL T05WV9M costs about $52 a year at the U.S. average rate (274 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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