HVACRated.com
    Menu

      6,000 BTU window air conditioner

      LG LW6023IVSM

      Very good efficiency for its size: a CEER of 15.5 ranks #2 of 12 5,000-6,000 BTU window air conditioners.

      It cools a room of about 150-250 sq ft, draws about 387 watts and costs about $52 a year to run at typical U.S. use and prices.

      CEER
      15.5 Combined efficiency, higher is better
      Very good · beats 88%
      Cooling
      6,000 BTU/hFor about 150-250 sq ft
      Energy use
      290 kWh/yr41% less than the federal minimum
      Unit size
      19.6" wide 12.4" high, 24.5" deep, 62 lb

      A good fit if…

      • You want low bills - its CEER beats 88% of 5,000-6,000 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 also need heat - it cools only.

      Calculate my running costCheck the size for my room

      Details

      Specifications6,000 BTU, 115 V
      General
      BrandLG
      Model numberLW6023IVSM
      TypeWindow
      DesignStandard box
      HeatingNo, cooling only
      CompressorVariable speed (inverter)
      Voltage115 V (standard outlet)
      RefrigerantR-32 (GWP 675)
      Support bracket includedNo
      On the market sinceAugust 28, 2023
      Last certifiedSeptember 18, 2023
      Performance
      Cooling capacity6,000 BTU/h
      CEERCombined energy efficiency ratio, includes standby power15.5
      Yearly energy useENERGY STAR test: 750 hours290 kWh
      Better than federal minimum41% less energy
      ENERGY STAR Most EfficientYes
      Size
      Width × height × depth19.6" W × 12.4" H × 24.5" D
      Weight62 lb
      How it compares with 11 other 5,000-6,000 BTU window units#2 of 12
      • CEER (class median 14.4)15.5, no ties
      • Yearly cost vs. class median ($54)$1 less
      • Width 19.6" (class median 16")narrower than 9%
      • Weight 62 lb (class median 42 lb)lighter than 0%
      • Rank among 5 similar designs#2

      Compared with the other ENERGY STAR certified 5,000-6,000 BTU window units. Yearly cost at 750 hours and 18.0¢/kWh.

      Questions6
      How many square feet does the LG LW6023IVSM cool?
      At 6,000 BTU/h it suits a room of about 150 to 250 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 165-275 sq ft; in a very sunny one it shrinks to 135-225 sq ft. A kitchen needs 4,000 BTU more.
      How many watts and amps does the LG LW6023IVSM use?
      About 387 watts at full power (6,000 BTU/h divided by its CEER of 15.5), which is 3.4 amps at 115 V. That is 10 W less than the typical unit in its class (397 W), or $1 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 83% of the 12 units in the class.
      Can the LG LW6023IVSM run on a standard outlet?
      Yes. It runs on 115 V and draws about 3.4 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 LG LW6023IVSM, and will it fit my window?
      19.6" W × 12.4" H × 24.5" D, 62 lb. It is narrower than 9% of its 11 competitors and lighter than 0% of them. The window must be wider than 19.6"; the side panels fill the remaining gap.
      Can the LG LW6023IVSM also heat the room?
      No, it only cools. If you also need heat, 0 certified units in this class can do both; see the list of air conditioners with heat.
      Is the LG LW6023IVSM worth buying to replace an old air conditioner?
      An old unit of the same size at 9 CEER would cost about $90 a year to run at 750 hours and 18.0¢/kWh; this one costs about $52, so it saves roughly $38 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 LG LW6023IVSM
      2. How you use it
      Per year
      $82
      Per month of use
      $15
      Per day
      $0.50
      Per hour
      6.2¢
      Power draw
      387 W

      Electricity used: 511 kWh a yearAn old 9 CEER unit of the same size would cost $141

      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 LG LW6023IVSM.

      ModelCEERCompared with this one
      Midea MAW06U1QWT15.10.4 CEER lower, 11 lb lighter, U-shaped
      Midea MAW06V1QWBL-T15.10.4 CEER lower, 11 lb lighter, saddle design
      Midea MAW06V1QWT15.10.4 CEER lower, 9 lb lighter
      Midea MAW06S1KWT-A16.00.5 CEER higher, 3.6" narrower, 30 lb lighter
      Midea MAW05R1KWT-B14.41.1 CEER lower, 3.6" narrower, 32 lb lighter

      See all 12 5,000-6,000 BTU window air conditioners, ranked

      Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of September 18, 2023. How we use the data.