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5,000 BTU window air conditioner

Midea MAW05R1KWT-B

Average efficiency for its size: a CEER of 14.4 ranks #6 of 12 5,000-6,000 BTU window air conditioners.

It cools a room of about 100-150 sq ft, draws about 347 watts and costs about $47 a year to run at typical U.S. use and prices.

CEER
14.4 Combined efficiency, higher is better
Average · beats 54%
Cooling
5,000 BTU/hFor about 100-150 sq ft
Energy use
260 kWh/yr31% less than the federal minimum
Unit size
16" wide 12.1" high, 13.3" deep, 30 lb

A good fit if…

  • You want to plug it into an ordinary outlet - it runs on 115 V.
  • You install it yourself - at 30 lb one person can lift it into a window.

Think twice if…

  • You also need heat - it cools only.

Calculate my running costCheck the size for my room

Details

Specifications5,000 BTU, 115 V
General
BrandMidea
Also sold asFrigidaire, BLACK+DECKER, Brothers, PerfectAire, Vissani
Model numberMAW05R1KWT-B
TypeWindow
DesignStandard box
HeatingNo, cooling only
CompressorVariable speed (inverter)
Voltage115 V (standard outlet)
RefrigerantR-32 (GWP 675)
Support bracket includedNo
On the market sinceJuly 24, 2026
Last certifiedSeptember 29, 2026
Performance
Cooling capacity5,000 BTU/h
CEERCombined energy efficiency ratio, includes standby power14.4
Yearly energy useENERGY STAR test: 750 hours260 kWh
Better than federal minimum31% less energy
ENERGY STAR Most EfficientNo
Size
Width × height × depth16" W × 12.1" H × 13.3" D
Weight30 lb
How it compares with 11 other 5,000-6,000 BTU window units#6 of 12
  • CEER (class median 14.4)14.4, no ties
  • Yearly cost vs. class median ($54)$7 less
  • Width 16" (class median 18.6")narrower than 55%
  • Weight 30 lb (class median 42 lb)lighter than 100%
  • Rank among 5 similar designs#4

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

Same unit, other model numbers10

These model numbers have the same capacity, efficiency, energy use, dimensions and weight as the Midea MAW05R1KWT-B: 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 MAW05R1KWT-B cool?
At 5,000 BTU/h it suits a room of about 100 to 150 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 110-165 sq ft; in a very sunny one it shrinks to 90-135 sq ft. A kitchen needs 4,000 BTU more.
How many watts and amps does the Midea MAW05R1KWT-B use?
About 347 watts at full power (5,000 BTU/h divided by its CEER of 14.4), which is 3.0 amps at 115 V. That is 50 W less than the typical unit in its class (397 W), or $7 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 50% of the 12 units in the class.
Can the Midea MAW05R1KWT-B run on a standard outlet?
Yes. It runs on 115 V and draws about 3.0 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 MAW05R1KWT-B, and will it fit my window?
16" W × 12.1" H × 13.3" D, 30 lb. It is narrower than 55% of its 11 competitors and lighter than 100% of them. The window must be wider than 16"; the side panels fill the remaining gap.
Can the Midea MAW05R1KWT-B 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 Midea MAW05R1KWT-B worth buying to replace an old air conditioner?
An old unit of the same size at 9 CEER would cost about $75 a year to run at 750 hours and 18.0¢/kWh; this one costs about $47, so it saves roughly $28 a year.
Is the Midea MAW05R1KWT-B the same as the Midea MAW05S1KWT-A?
As far as the certified data goes, yes. ENERGY STAR lists 11 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 MAW05R1KWT-B
2. How you use it
Per year
$73
Per month of use
$13
Per day
$0.44
Per hour
5.6¢
Power draw
347 W

Electricity used: 458 kWh a yearAn old 9 CEER unit of the same size would cost $117

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 MAW05R1KWT-B.

ModelCEERCompared with this one
TCL W5WC7213.70.7 CEER lower, 12 lb heavier, U-shaped
Whirlpool WHAW061CX13.70.7 CEER lower, U-shaped
TCL W6WC7213.70.7 CEER lower, 2.6" wider, 10 lb heavier, U-shaped
TCL H6W4KW13.70.7 CEER lower, 4.7" wider, 21 lb heavier, U-shaped
Whirlpool WHAW050EX13.11.3 CEER lower, 12 lb heavier, U-shaped

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 29, 2026. How we use the data.