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12,000 BTU U-shaped window air conditioner

Midea MAW12V1QWT

Below average efficiency for its size: a CEER of 15.0 ranks #23 of 34 12,000 BTU window air conditioners.

It cools a room of about 450-550 sq ft, draws about 800 watts and costs about $108 a year to run at typical U.S. use and prices.

CEER
15.0 Combined efficiency, higher is better
Below average · beats 38%
Cooling
12,000 BTU/hFor about 450-550 sq ft
Energy use
600 kWh/yr38% less than the federal minimum
Unit size
19.2" wide 13.5" high, 22" deep, 53 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 12,000 BTU window air conditioners.
  • You also need heat - it cools only.

Calculate my running costCheck the size for my room

Details

Specifications12,000 BTU, 115 V
General
BrandMidea
Also sold asFrigidaire Gallery, Comfort-Aire, Century, PerfectAire, Keystone
Model numberMAW12V1QWT
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 13, 2021
Last certifiedSeptember 26, 2024
Performance
Cooling capacity12,000 BTU/h
CEERCombined energy efficiency ratio, includes standby power15.0
Yearly energy useENERGY STAR test: 750 hours600 kWh
Better than federal minimum38% less energy
ENERGY STAR Most EfficientNo
Size
Width × height × depth19.2" W × 13.5" H × 22" D
Weight53 lb
How it compares with 33 other 12,000 BTU window units#23 of 34
  • CEER (class median 15.0)15.0, tied with 13 others
  • Yearly cost vs. class median ($108)about the same
  • Width 19.2" (class median 20.7")narrower than 70%
  • Weight 53 lb (class median 59 lb)lighter than 85%
  • Rank among 12 similar designs (U-shaped)#9

Compared with the other ENERGY STAR certified 12,000 BTU window units. Yearly cost at 750 hours and 18.0¢/kWh.

Same unit, other model numbers12

These model numbers have the same capacity, efficiency, energy use, dimensions and weight as the Midea MAW12V1QWT: the same unit under another brand, or with a colour or retailer code. Everything on this page applies to them.

Questions8
How many square feet does the Midea MAW12V1QWT cool?
At 12,000 BTU/h it suits a room of about 450 to 550 sq ft with normal sun and two people, following the ENERGY STAR sizing guide. In a heavily shaded room that stretches to about 495-605 sq ft; in a very sunny one it shrinks to 405-495 sq ft. A kitchen needs 4,000 BTU more.
How many watts and amps does the Midea MAW12V1QWT use?
About 800 watts at full power (12,000 BTU/h divided by its CEER of 15.0), which is 7.0 amps at 115 V. That is 0 W less than the typical unit in its class (800 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 18% of the 34 units in the class.
Can the Midea MAW12V1QWT run on a standard outlet?
Yes. It runs on 115 V and draws about 7.0 A, well inside a standard 15 A outlet, but do not share the circuit with a space heater, microwave or other big load. 12% of certified units in this class need 230 V, so a 115 V model is the easy case.
What are the dimensions of the Midea MAW12V1QWT, and will it fit my window?
19.2" W × 13.5" H × 22" D, 53 lb. It is narrower than 70% of its 33 competitors and lighter than 85% 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 19.2" width between the frame sides.
Is the Midea MAW12V1QWT 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 Midea MAW12V1QWT also heat the room?
No, it only cools. If you also need heat, 5 certified units in this class can do both; see the list of air conditioners with heat.
Is the Midea MAW12V1QWT worth buying to replace an old air conditioner?
An old unit of the same size at 9 CEER would cost about $180 a year to run at 750 hours and 18.0¢/kWh; this one costs about $108, so it saves roughly $72 a year.
Is the Midea MAW12V1QWT the same as the Midea MAW12AV1QWT?
As far as the certified data goes, yes. ENERGY STAR lists 13 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 MAW12V1QWT
2. How you use it
Per year
$169
Per month of use
$31
Per day
$1.02
Per hour
12.8¢
Power draw
800 W

Electricity used: 1,056 kWh a yearAn old 9 CEER unit of the same size would cost $282

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 MAW12V1QWT.

ModelCEERCompared with this one
GE Profile PWDV12W15.0same CEER, 3 lb lighter, standard box
Richmond RMV12A10A15.0same CEER, 6 lb heavier, standard box
Friedrich CCV12A10A15.0same CEER, 1.5" wider, 6 lb heavier, standard box
Danby DAC120ECBIWDB15.0same CEER, 2.5" wider, standard box
Hisense LWCT12W25A15.0same CEER, 1.1" wider

See all 34 12,000 BTU window air conditioners, ranked

Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of September 26, 2024. How we use the data.