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      8,700 BTU window air conditioner

      Friedrich KCVS08B10A

      Very good efficiency for its size: a CEER of 16.0 ranks #2 of 29 8,000 BTU window air conditioners.

      It cools a room of about 300-400 sq ft, draws about 544 watts and costs about $74 a year to run at typical U.S. use and prices.

      CEER
      16.0 Combined efficiency, higher is better
      Very good · beats 83%
      Cooling
      8,700 BTU/hFor about 300-400 sq ft
      Energy use
      408 kWh/yr47% less than the federal minimum
      Unit size
      25.9" wide 15.9" high, 29" deep, 100 lb

      A good fit if…

      • You want low bills - its CEER beats 83% of 8,000 BTU window air conditioners.
      • You want to plug it into an ordinary outlet - it runs on 115 V.
      • You want the very top tier - it meets the ENERGY STAR Most Efficient criteria.

      Think twice if…

      • You plan to install it alone - at 100 lb it is a two-person job.
      • You also need heat - it cools only.

      Calculate my running costCheck the size for my room

      Details

      Specifications8,700 BTU, 115 V
      General
      BrandFriedrich
      Model numberKCVS08B10A
      TypeWindow
      DesignStandard box
      HeatingNo, cooling only
      CompressorVariable speed (inverter)
      Voltage115 V (standard outlet)
      RefrigerantR-32 (GWP 675)
      Support bracket includedYes
      On the market sinceMarch 12, 2025
      Last certifiedMarch 13, 2025
      Performance
      Cooling capacity8,700 BTU/h
      CEERCombined energy efficiency ratio, includes standby power16.0
      Yearly energy useENERGY STAR test: 750 hours408 kWh
      Better than federal minimum47% less energy
      ENERGY STAR Most EfficientYes
      Size
      Width × height × depth25.9" W × 15.9" H × 29" D
      Weight100 lb
      How it compares with 28 other 8,000 BTU window units#2 of 29
      • CEER (class median 15.0)16.0, tied with 7 others
      • Yearly cost vs. class median ($72)$1 more
      • Width 25.9" (class median 19.4")narrower than 0%
      • Weight 100 lb (class median 56 lb)lighter than 0%
      • Rank among 13 similar designs#1

      Compared with the other ENERGY STAR certified 8,000 BTU window units. Yearly cost at 750 hours and 18.0¢/kWh.

      Questions6
      How many square feet does the Friedrich KCVS08B10A cool?
      At 8,700 BTU/h it suits a room of about 300 to 400 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 330-440 sq ft; in a very sunny one it shrinks to 270-360 sq ft. A kitchen needs 4,000 BTU more.
      How many watts and amps does the Friedrich KCVS08B10A use?
      About 544 watts at full power (8,700 BTU/h divided by its CEER of 16.0), which is 4.7 amps at 115 V. That is 11 W more than the typical unit in its class (533 W), or $1 a year dearer to run at 18.0¢/kWh. Its inverter compressor slows down instead of cycling, so real use is usually lower. Its CEER beats 69% of the 29 units in the class.
      Can the Friedrich KCVS08B10A run on a standard outlet?
      Yes. It runs on 115 V and draws about 4.7 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 Friedrich KCVS08B10A, and will it fit my window?
      25.9" W × 15.9" H × 29" D, 100 lb. It is narrower than 0% of its 28 competitors and lighter than 0% of them. The window must be wider than 25.9"; the side panels fill the remaining gap.
      Can the Friedrich KCVS08B10A also heat the room?
      No, it only cools. If you also need heat, 4 certified units in this class can do both; see the list of air conditioners with heat.
      Is the Friedrich KCVS08B10A worth buying to replace an old air conditioner?
      An old unit of the same size at 9 CEER would cost about $131 a year to run at 750 hours and 18.0¢/kWh; this one costs about $74, so it saves roughly $57 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 Friedrich KCVS08B10A
      2. How you use it
      Per year
      $115
      Per month of use
      $21
      Per day
      $0.70
      Per hour
      8.7¢
      Power draw
      544 W

      Electricity used: 718 kWh a yearAn old 9 CEER unit of the same size would cost $204

      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 Friedrich KCVS08B10A.

      ModelCEERCompared with this one
      Whirlpool WHAW081INV16.0same CEER, 1.7" narrower, 44 lb lighter, U-shaped
      GREE GJC08BU-A6DRNJ2A16.0same CEER, 4.9" narrower, 39 lb lighter, U-shaped
      Midea 101045131516.0same CEER, 6.7" narrower, 46 lb lighter, U-shaped
      Whirlpool WHAW081CX16.0same CEER, 7.3" narrower, 57 lb lighter, U-shaped
      Midea MWEUWA-08CRFN8-BCP016.0same CEER, 6.7" narrower, 47 lb lighter

      See all 29 8,000 BTU window air conditioners, ranked

      Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of March 13, 2025. How we use the data.