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      10,000 BTU U-shaped window air conditioner

      TCL T10WQ2S

      Below average efficiency for its size: a CEER of 15.0 ranks #22 of 28 10,000 BTU window air conditioners.

      It cools a room of about 350-450 sq ft, draws about 667 watts and costs about $90 a year to run at typical U.S. use and prices.

      CEER
      15.0 Combined efficiency, higher is better
      Below average · beats 36%
      Cooling
      10,000 BTU/hFor about 350-450 sq ft
      Energy use
      500 kWh/yr38% less than the federal minimum
      Unit size
      20.7" wide 13.4" high, 19.3" deep, 58 lb

      A good fit if…

      • You want a quieter room and a usable window - the window closes into the U, so the compressor sits outside the glass.
      • You want to plug it into an ordinary outlet - it runs on 115 V.

      Think twice if…

      • Running cost matters most - its CEER is below average for 10,000 BTU window air conditioners.
      • You also need heat - it cools only.

      Calculate my running costCheck the size for my room

      Details

      Specifications10,000 BTU, 115 V
      General
      BrandTCL
      Model numberT10WQ2S
      TypeWindow
      DesignU-shaped (window closes through it)
      HeatingNo, cooling only
      CompressorVariable speed (inverter)
      Voltage115 V (standard outlet)
      RefrigerantR-32 (GWP 675)
      Support bracket includedYes
      On the market sinceNovember 11, 2025
      Last certifiedAugust 22, 2025
      Performance
      Cooling capacity10,000 BTU/h
      CEERCombined energy efficiency ratio, includes standby power15.0
      Yearly energy useENERGY STAR test: 750 hours500 kWh
      Better than federal minimum38% less energy
      ENERGY STAR Most EfficientNo
      Size
      Width × height × depth20.7" W × 13.4" H × 19.3" D
      Weight58 lb
      How it compares with 27 other 10,000 BTU window units#22 of 28
      • CEER (class median 15.0)15.0, tied with 11 others
      • Yearly cost vs. class median ($90)about the same
      • Width 20.7" (class median 19.8")narrower than 41%
      • Weight 58 lb (class median 63 lb)lighter than 56%
      • Rank among 9 similar designs (U-shaped)#7

      Compared with the other ENERGY STAR certified 10,000 BTU window units. Yearly cost at 750 hours and 18.0¢/kWh.

      Questions7
      How many square feet does the TCL T10WQ2S cool?
      At 10,000 BTU/h it suits a room of about 350 to 450 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 385-495 sq ft; in a very sunny one it shrinks to 315-405 sq ft. A kitchen needs 4,000 BTU more.
      How many watts and amps does the TCL T10WQ2S use?
      About 667 watts at full power (10,000 BTU/h divided by its CEER of 15.0), which is 5.8 amps at 115 V. That is 0 W more than the typical unit in its class (667 W), or $0 a year cheaper to run at 18.0¢/kWh. Its inverter compressor slows down instead of cycling, so real use is usually lower. Its CEER beats 14% of the 28 units in the class.
      Can the TCL T10WQ2S run on a standard outlet?
      Yes. It runs on 115 V and draws about 5.8 A, well inside a standard 15 A outlet, but do not share the circuit with a space heater, microwave or other big load. Every certified unit in this class is 115 V.
      What are the dimensions of the TCL T10WQ2S, and will it fit my window?
      20.7" W × 13.4" H × 19.3" D, 58 lb. It is narrower than 41% of its 27 competitors and lighter than 56% of them. The window closes into the U-shaped slot, so measure the opening height as well as the width: you need at least the unit's 20.7" width between the frame sides.
      Is the TCL T10WQ2S U-shaped design an advantage?
      Mostly yes. The sash closes into the unit, so the window stays sealed and daylight comes in, and the compressor is outside the glass, which cuts noise indoors. The trade-off is a window that must slide up and down, and a few extra steps to fit the foam seals.
      Can the TCL T10WQ2S also heat the room?
      No, it only cools. If you also need heat, 6 certified units in this class can do both; see the list of air conditioners with heat.
      Is the TCL T10WQ2S worth buying to replace an old air conditioner?
      An old unit of the same size at 9 CEER would cost about $150 a year to run at 750 hours and 18.0¢/kWh; this one costs about $90, so it saves roughly $60 a year.

      Running cost calculator

      Pre-filled with this model. Pick your state and how many hours you run it, or see the yearly cost in every state.

      1. The air conditioner TCL T10WQ2S
      2. How you use it
      Per year
      $141
      Per month of use
      $26
      Per day
      $0.85
      Per hour
      10.7¢
      Power draw
      667 W

      Electricity used: 880 kWh a yearAn old 9 CEER unit of the same size would cost $235

      Power draw is capacity divided by CEER, which already includes standby power. Inverter units often run below full power, so real use can be lower. Electricity prices: U.S. EIA residential averages (12 months to July 2026). Days a year start from your state's cooling degree days (NOAA 1991-2020 normals).

      Closest alternatives

      Units with a similar CEER in the same class, and what sets each one apart from the TCL T10WQ2S.

      ModelCEERCompared with this one
      Friedrich CCV10A10A15.0same CEER, standard box
      LG LW1022FVSM15.0same CEER, 1.1" narrower, 5 lb heavier, saddle design
      Windmill 10W2Wi15.0same CEER, 1.4" narrower, 5 lb heavier, standard box
      Midea MAW10V1UWT15.0same CEER, 1.5" narrower, 4 lb lighter, standard box
      Hisense AWUS1026TW15.0same CEER

      See all 28 10,000 BTU window air conditioners, ranked

      Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of August 22, 2025. How we use the data.