Model
K�Hl KCVS08B10B
Rank #42 means 41 of the 404 room air conditioner models we track cost less to run each year; the 100th efficiency percentile means it uses less energy for its size than 100% of those models.
What does the K�Hl KCVS08B10B cost to run per year?
Among the 404 room air conditioner models we track, the K�Hl KCVS08B10B's $71/yr running cost ranks it #42, comfortably in the cheap-to-run group. It uses 56% less energy than the U.S. federal standard model in its class, which would cost about $162/yr to run, a saving of roughly $91 a year. Its size-adjusted efficiency percentile of 100 means the low running cost is not just a function of size; almost nothing in the class beats it on efficiency once capacity is accounted for. At a CEER of 17, 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 Tcl W8WC72-B at $70/yr runs a little cheaper and the Lg LW8022IVSM at $72/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 K�Hl KCVS08B10B's $71/yr adds up to roughly $710 in electricity alone, before purchase price or repairs.
By the numbers
The K�Hl KCVS08B10B 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 $71/yr, here is what the K�Hl KCVS08B10B adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the K�Hl KCVS08B10B costs about $710. That is roughly $910 less than a standard model in its class, which would run closer to $1620 over the same ten years.
How the K�Hl KCVS08B10B compares
The room air conditioner class we track runs from $51 to $389 a year. At $71/yr, it runs about $28 a year cheaper than the class median of $99, and it is about $20 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $162/yr, the K�Hl KCVS08B10B uses 56% less energy.
What drives its running cost
At 8700 BTU/hr, the K�Hl KCVS08B10B 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 17, above 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 K�Hl KCVS08B10B cheap to run?
Yes. Its $71/yr running cost puts it at rank #42 of 404, below what most room air conditioner models we track cost to run.
How much does the K�Hl KCVS08B10B cost per month?
About $5.94 a month, which is the $71 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: 384 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $71 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the K�Hl KCVS08B10B for its size?
100th percentile once size is factored in. That means its size-adjusted efficiency is a real factor in the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 41 | Tcl W8WC72-B8000 BTU/hr | $70 |
| 40 | Tcl W8WC728000 BTU/hr | $70 |
| 39 | Tcl T08WV9SB8000 BTU/hr | $70 |
| 38 | Tcl T08WV9S8000 BTU/hr | $70 |
| 37 | Tcl T08WV3S8000 BTU/hr | $70 |
Source
ES_31705_KCVS08B10B_061720260320511_5070856View certified room air conditioner listingsENERGY STAR data as of July 2026K�Hl and KCVS08B10B 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.