Model
Midea MAT08R1FWTK
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 MAT08R1FWTK cost to run per year?
The Midea MAT08R1FWTK is a relatively cheap runner for its class: about $79 a year, rank #120 of 404. 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. Its 70th size-adjusted efficiency percentile is a step ahead of the class median, though not among the very top results. At a CEER of 14.1, its combined energy efficiency ratio is the single figure that best explains how it earns its running-cost number.
Immediately around it on the leaderboard, the Lg LW8024IVSM at $79/yr runs a little cheaper and the Midea MAT08R1SWTK 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 MAT08R1FWTK's $79/yr adds up to roughly $790 in electricity alone, before purchase price or repairs.
Also sold as: Midea MAT08R1SWTK, Midea MWEUTW-08CRFN8-BCN1, Seasons ST08VB1.
By the numbers
The Midea MAT08R1FWTK 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 MAT08R1FWTK 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 MAT08R1FWTK 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 MAT08R1FWTK 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 MAT08R1FWTK uses 47% less energy.
What drives its running cost
At 8000 BTU/hr, the Midea MAT08R1FWTK is a small room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, at the small end of the class, capacity itself is doing a lot of the work to keep that figure down, separate from how efficient the unit actually is. 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). CEER captures cooling output per watt, including standby power; a higher CEER means less electricity for the same BTU of cooling.
- BTU cooling capacity. A higher-BTU unit is sized for a bigger room and generally uses more electricity per hour of operation than a smaller unit, regardless of efficiency.
- Thermostat and mode usage. Running on a fixed low temperature around the clock uses far more energy than using a thermostat setting, eco mode, or a timer to match cooling to when the room is actually occupied.
Common questions
Is the Midea MAT08R1FWTK cheap to run?
Yes, relatively. At $79 a year it ranks #120 of 404 room air conditioner models we track, in the cheaper part of its class to run.
How much does the Midea MAT08R1FWTK cost per month?
Roughly $6.58/mo, spreading the $79/yr estimate evenly across twelve months at $0.1856/kWh. Actual monthly bills swing with your rate and usage pattern.
How is this running-cost figure calculated?
We take the model's published annual energy use of 426 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $79 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the Midea MAT08R1FWTK 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 |
|---|---|---|
| 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 |
| 115 | Keystone KSTAW08INV-HC8000 BTU/hr | $77 |
Source
ES_1138537_MAT08R1FWTK_06192026111311_80299303View certified room air conditioner listingsENERGY STAR data as of July 2026Midea and MAT08R1FWTK 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.