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7,800 BTU window air conditioner

Midea MAW08S1KWT-A

Below average efficiency for its size: a CEER of 13.7 ranks #28 of 29 8,000 BTU window air conditioners.

It cools a room of about 250-350 sq ft, draws about 569 watts and costs about $77 a year to run at typical U.S. use and prices.

CEER
13.7 Combined efficiency, higher is better
Below average · beats 5%
Cooling
7,800 BTU/hFor about 250-350 sq ft
Energy use
427 kWh/yr25% less than the federal minimum
Unit size
16" wide 12.1" high, 13.3" deep, 33 lb

A good fit if…

  • You want to plug it into an ordinary outlet - it runs on 115 V.
  • You install it yourself - at 33 lb one person can lift it into a window.

Think twice if…

  • Running cost matters most - its CEER is below average for 8,000 BTU window air conditioners.
  • You also need heat - it cools only.

Calculate my running costCheck the size for my room

Details

Specifications7,800 BTU, 115 V
General
BrandMidea
Also sold asFrigidaire, BLACK+DECKER, Seasons, PerfectAire, Vissani
Model numberMAW08S1KWT-A
TypeWindow
DesignStandard box
HeatingNo, cooling only
CompressorVariable speed (inverter)
Voltage115 V (standard outlet)
RefrigerantR-32 (GWP 675)
Support bracket includedNo
On the market sinceJuly 14, 2026
Last certifiedSeptember 29, 2026
Performance
Cooling capacity7,800 BTU/h
CEERCombined energy efficiency ratio, includes standby power13.7
Yearly energy useENERGY STAR test: 750 hours427 kWh
Better than federal minimum25% less energy
ENERGY STAR Most EfficientNo
Size
Width × height × depth16" W × 12.1" H × 13.3" D
Weight33 lb
How it compares with 28 other 8,000 BTU window units#28 of 29
  • CEER (class median 15.0)13.7, no ties
  • Yearly cost vs. class median ($72)$5 more
  • Width 16" (class median 19.4")narrower than 100%
  • Weight 33 lb (class median 56 lb)lighter than 100%
  • Rank among 13 similar designs#13

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

Same unit, other model numbers9

These model numbers have the same capacity, efficiency, energy use, dimensions and weight as the Midea MAW08S1KWT-A: the same unit under another brand, or with a colour or retailer code. Everything on this page applies to them.

Questions7
How many square feet does the Midea MAW08S1KWT-A cool?
At 7,800 BTU/h it suits a room of about 250 to 350 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 275-385 sq ft; in a very sunny one it shrinks to 225-315 sq ft. A kitchen needs 4,000 BTU more.
How many watts and amps does the Midea MAW08S1KWT-A use?
About 569 watts at full power (7,800 BTU/h divided by its CEER of 13.7), which is 5.0 amps at 115 V. That is 36 W more than the typical unit in its class (533 W), or $5 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 3% of the 29 units in the class.
Can the Midea MAW08S1KWT-A run on a standard outlet?
Yes. It runs on 115 V and draws about 5.0 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 Midea MAW08S1KWT-A, and will it fit my window?
16" W × 12.1" H × 13.3" D, 33 lb. It is narrower than 100% of its 28 competitors and lighter than 100% of them. The window must be wider than 16"; the side panels fill the remaining gap.
Can the Midea MAW08S1KWT-A 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 Midea MAW08S1KWT-A worth buying to replace an old air conditioner?
An old unit of the same size at 9 CEER would cost about $117 a year to run at 750 hours and 18.0¢/kWh; this one costs about $77, so it saves roughly $40 a year.
Is the Midea MAW08S1KWT-A the same as the Midea MAW08V1SWBL-T?
As far as the certified data goes, yes. ENERGY STAR lists 10 model numbers with the same capacity, efficiency, energy use, dimensions and weight, which means the same unit sold under another brand or with a different colour or retailer code. The full list is on this page.

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 Midea MAW08S1KWT-A
2. How you use it
Per year
$120
Per month of use
$22
Per day
$0.73
Per hour
9.1¢
Power draw
569 W

Electricity used: 752 kWh a yearAn old 9 CEER unit of the same size would cost $183

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 Midea MAW08S1KWT-A.

ModelCEERCompared with this one
GE Appliances AWGP08W13.20.5 CEER lower, 3" wider, 12 lb heavier, also heats
Midea MWAUQB-08HRFN8-BCL014.50.8 CEER higher, 3.4" wider, 23 lb heavier, U-shaped, also heats
GE Profile PWDV08W15.01.3 CEER higher, 2.5" wider, 10 lb heavier
Hisense AALW08TW2615.01.3 CEER higher, 4.3" wider, 18 lb heavier, U-shaped
TCL T08WQ2S15.01.3 CEER higher, 4.7" wider, 23 lb heavier, U-shaped

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

Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of September 29, 2026. How we use the data.