Model
Midea MAT08R1SWTK
Rank #120 means 119 of the 404 room air conditioner models we track cost less to run each year; the 70th efficiency percentile means it uses less energy for its size than 70% of those models.
What does the Midea MAT08R1SWTK cost to run per year?
The Midea MAT08R1SWTK costs about $79 a year to run, which beats most of the 404 room air conditioner models we track; it ranks #120. It uses 47% less energy than the U.S. federal standard model in its class, which would cost about $149/yr to run, a saving of roughly $70 a year. Capacity-normalized, it ranks ahead of 70% of room air conditioner models we track, a reasonably strong result for the class. The CEER figure of 14.1 on this model captures combined energy efficiency ratio, the main efficiency lever ENERGY STAR tracks for this class.
Immediately around it on the leaderboard, the Midea MAT08R1FWTK at $79/yr runs a little cheaper and the Midea MWEUTW-08CRFN8-BCN1 at $79/yr runs a little more, a sense of how tightly models are packed at this point in the ranking. A room air conditioner typically stays in service for somewhere around 10 years; over that span, the Midea MAT08R1SWTK's $79/yr adds up to roughly $790 in electricity alone, before purchase price or repairs.
Also sold as: Midea MAT08R1FWTK.
By the numbers
The Midea MAT08R1SWTK normalized against its whole class, so each figure means something.
What it costs you over time
Running cost is an every-year number, so it compounds. At $79/yr, here is what the Midea MAT08R1SWTK adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Midea MAT08R1SWTK costs about $790. That is roughly $700 less than a standard model in its class, which would run closer to $1490 over the same ten years.
How the Midea MAT08R1SWTK compares
The room air conditioner class we track runs from $51 to $389 a year. At $79/yr, it runs about $20 a year cheaper than the class median of $99, and it is about $28 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $149/yr, the Midea MAT08R1SWTK uses 47% less energy.
What drives its running cost
At 8000 BTU/hr, the Midea MAT08R1SWTK is a small room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, and smaller room air conditioner models generally cost less to run for the same job, all else being equal. Its CEER of 14.1, below the class median of 15, reflects combined energy efficiency ratio: a higher figure means it wrings more useful work out of every kilowatt-hour, so it is the efficiency lever to weigh against raw size.
- Combined Energy Efficiency Ratio (CEER). Two units with the same BTU rating can post very different running costs, and CEER is the figure that explains most of that gap.
- BTU cooling capacity. BTU rating scales with room size, and it is usually the first driver of an air conditioner's running cost, ahead of its CEER figure.
- Thermostat and mode usage. How the unit is actually operated, thermostat cycling versus a fixed setting, moves real electricity use more than the rated BTU or CEER figure alone.
Common questions
Is the Midea MAT08R1SWTK cheap to run?
Yes. Its $79/yr running cost puts it at rank #120 of 404, below what most room air conditioner models we track cost to run.
How much does the Midea MAT08R1SWTK cost per month?
About $6.58 a month, which is the $79 annual estimate spread across twelve months at the US average rate of $0.1856/kWh. Your own bill scales with your local electricity rate and how heavily you use it.
How is this running-cost figure calculated?
The formula is annual kWh times price per kWh: 426 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $79 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea MAT08R1SWTK for its size?
70th percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 120 | Midea MAT08R1FWTK8000 BTU/hr | $79 |
| 119 | Lg LW8024IVSM8500 BTU/hr | $79 |
| 118 | Gradient CCHP119300 BTU/hr | $77 |
| 117 | Midea MWAUQB-08HRFN8-BCL08000 BTU/hr | $77 |
| 116 | Midea MAW08HV1CWT8000 BTU/hr | $77 |
Source
ES_1138537_MAT08R1SWTK_06192026111311_80299303View certified room air conditioner listingsENERGY STAR data as of July 2026Midea and MAT08R1SWTK are used here for identification only and are not endorsements. Figures are computed by WattWise Labs from public ENERGY STAR data, not measured in our own lab.