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6,000 BTU U-shaped window air conditioner

TCL W6WC72

Below average efficiency for its size: a CEER of 13.7 ranks #10 of 12 5,000-6,000 BTU window air conditioners.

It cools a room of about 150-250 sq ft, draws about 438 watts and costs about $59 a year to run at typical U.S. use and prices.

CEER
13.7 Combined efficiency, higher is better
Below average · beats 29%
Cooling
6,000 BTU/hFor about 150-250 sq ft
Energy use
329 kWh/yr25% less than the federal minimum
Unit size
18.6" wide 13.3" high, 17.7" deep, 40 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.
  • You install it yourself - at 40 lb one person can lift it into a window.

Think twice if…

  • Running cost matters most - its CEER is below average for 5,000-6,000 BTU window air conditioners.
  • You also need heat - it cools only.

Calculate my running costCheck the size for my room

Details

Specifications6,000 BTU, 115 V
General
BrandTCL
Model numberW6WC72
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 11, 2025
Last certifiedNovember 11, 2025
Performance
Cooling capacity6,000 BTU/h
CEERCombined energy efficiency ratio, includes standby power13.7
Yearly energy useENERGY STAR test: 750 hours329 kWh
Better than federal minimum25% less energy
ENERGY STAR Most EfficientNo
Size
Width × height × depth18.6" W × 13.3" H × 17.7" D
Weight40 lb
How it compares with 11 other 5,000-6,000 BTU window units#10 of 12
  • CEER (class median 14.4)13.7, tied with 4 others
  • Yearly cost vs. class median ($54)$5 more
  • Width 18.6" (class median 16")narrower than 45%
  • Weight 40 lb (class median 42 lb)lighter than 64%
  • Rank among 6 similar designs (U-shaped)#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 numbers3

These model numbers have the same capacity, efficiency, energy use, dimensions and weight as the TCL W6WC72: 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 TCL W6WC72 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 TCL W6WC72 use?
About 438 watts at full power (6,000 BTU/h divided by its CEER of 13.7), which is 3.8 amps at 115 V. That is 41 W more than the typical unit in its class (397 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 8% of the 12 units in the class.
Can the TCL W6WC72 run on a standard outlet?
Yes. It runs on 115 V and draws about 3.8 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 TCL W6WC72, and will it fit my window?
18.6" W × 13.3" H × 17.7" D, 40 lb. It is narrower than 45% of its 11 competitors and lighter than 64% 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 18.6" width between the frame sides.
Is the TCL W6WC72 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 TCL W6WC72 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 TCL W6WC72 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 $59, so it saves roughly $31 a year.
Is the TCL W6WC72 the same as the TCL T06WV9R?
As far as the certified data goes, yes. ENERGY STAR lists 4 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 TCL W6WC72
2. How you use it
Per year
$92
Per month of use
$17
Per day
$0.56
Per hour
7.0¢
Power draw
438 W

Electricity used: 578 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 TCL W6WC72.

ModelCEERCompared with this one
Midea MAW06S1VWBL-T13.7same CEER, 2.6" narrower, 8 lb lighter, standard box
Whirlpool WHAW061CX13.7same CEER, 2.6" narrower, 7 lb lighter
TCL H6W4KW13.7same CEER, 2.1" wider, 12 lb heavier
TCL W5WC7213.7same CEER, 2.6" narrower
Midea MAW05R1KWT-B14.40.7 CEER higher, 2.6" narrower, 10 lb lighter, standard box

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

Source: ENERGY STAR Certified Room Air Conditioners (U.S. EPA), certification of November 11, 2025. How we use the data.