WattCost

Data through June 2026

Room Air Conditioners · 20 certified models

18,000 BTU Room Air Conditioners

20 certified 18,000 btu room air conditioners show up in this data, running $155 to $172 a year to run at the U.S. average electricity rate — median $165.

All certified models

18,000 BTU Room Air Conditioners, ranked by certified annual kWh
#ModelkWh/yr$/yr (US avg)
1Brothers 102387most efficient844$155
2Midea MAW18RV1KWTmost efficient844$155
3Midea MAW18S2KWT-Amost efficient844$155
4Midea MWCUWH-18CRFN8-MCP0most efficient844$155
5Seasons SW18V2most efficient844$155
6Frigidaire FHWW185WE2900$165
7Hisense AW1823TW3W900$165
8Keplerx KBRC18RSVE2900$165
9Keystone KSTAW182WA900$165
10Midea MAW18R2VWT900$165
11Midea MAW18RV1CWT900$165
12Midea MAW18S2VWT-A900$165
13Midea MWCUWH-18CRFN8-MCN10900$165
14LG LW1822IVSM918$168
15Friedrich CCV18A30A938$172
16HEMA DS-2W1822CI938$172
17TCL H18W4KW938$172
18TCL H18W4KW-CA938$172
19TCL T18WQ2S938$172
20Whirlpool WHAW-181IN938$172

Other capacity facets

Questions, answered with the data

How much does it cost to run 18,000 btu room air conditioners?
Among 20 certified models in this data, 18,000 btu room air conditioners cost $155 to $172 a year to run at the U.S. average electricity rate (18.3¢/kWh) — a median of $165.
Do 18,000 btu room air conditioners cost more or less than the average room air conditioner?
The median model here runs $165 a year, 69% more than the $98 median across all certified room air conditioners.
What's the cheapest model among 18,000 btu room air conditioners?
The Brothers 102387 costs about $155 a year at the U.S. average rate (844 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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