Model
Midea MAW08HV1CWT
Rank #115 means 114 of the 404 room air conditioner models we track cost less to run each year; the 71st efficiency percentile means it uses less energy for its size than 71% of those models.
What does the Midea MAW08HV1CWT cost to run per year?
At about $77 a year, the Midea MAW08HV1CWT undercuts most room air conditioner models we track on running cost, rank #115 of 404. It uses 48% less energy than the U.S. federal standard model in its class, which would cost about $148/yr to run, a saving of roughly $71 a year. Size-adjusted, this model beats 71% of room air conditioner models we track on efficiency, better than most of its class. Its CEER of 14.5 reflects combined energy efficiency ratio, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Keystone KSTAW08INV-HC at $77/yr runs a little cheaper and the Midea MWAUQB-08HRFN8-BCL0 at $77/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 MAW08HV1CWT's $77/yr adds up to roughly $770 in electricity alone, before purchase price or repairs.
Also sold as: Keystone KSTAW08INV-HC.
By the numbers
The Midea MAW08HV1CWT 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 $77/yr, here is what the Midea MAW08HV1CWT 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 MAW08HV1CWT costs about $770. That is roughly $710 less than a standard model in its class, which would run closer to $1480 over the same ten years.
How the Midea MAW08HV1CWT compares
The room air conditioner class we track runs from $51 to $389 a year. At $77/yr, it runs about $22 a year cheaper than the class median of $99, and it is about $26 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $148/yr, the Midea MAW08HV1CWT uses 48% less energy.
What drives its running cost
At 8000 BTU/hr, the Midea MAW08HV1CWT 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 14.5, 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 MAW08HV1CWT cheap to run?
Yes. Its $77/yr running cost puts it at rank #115 of 404, below what most room air conditioner models we track cost to run.
How much does the Midea MAW08HV1CWT cost per month?
About $6.4 a month, which is the $77 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: 414 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $77 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Midea MAW08HV1CWT for its size?
71st percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
Source
ES_1138537_MAW08HV1CWT_010220240946718_4545013View certified room air conditioner listingsENERGY STAR data as of July 2026Midea and MAW08HV1CWT 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.