Model
K�Hl KCVM18B30B
Rank #372 means 371 of the 404 room air conditioner models we track cost less to run each year; the 11th efficiency percentile means it uses less energy for its size than 11% of those models.
What does the K�Hl KCVM18B30B cost to run per year?
Do the math and the K�Hl KCVM18B30B's $199/yr puts it at rank #372 of 404, one of the costlier room air conditioner models we track to keep running. It uses 55% less energy than the U.S. federal standard model in its class, which would cost about $443/yr to run, a saving of roughly $244 a year. Adjusted for size, it is only more efficient than 11% of room air conditioner models we track, so its headline cost is mostly a function of its capacity rather than efficiency. The CEER figure of 14.6 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 Friedrich WCVT16B30A at $186/yr runs a little cheaper and the Hisense AW2223TW3W at $204/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 KCVM18B30B's $199/yr adds up to roughly $1990 in electricity alone, before purchase price or repairs.
By the numbers
The K�Hl KCVM18B30B 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 $199/yr, here is what the K�Hl KCVM18B30B 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 KCVM18B30B costs about $1990. That is roughly $2440 less than a standard model in its class, which would run closer to $4430 over the same ten years.
How the K�Hl KCVM18B30B compares
The room air conditioner class we track runs from $51 to $389 a year. At $199/yr, it runs about $100 a year above the class median of $99, and it is about $148 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $443/yr, the K�Hl KCVM18B30B uses 55% less energy.
What drives its running cost
At 20900 BTU/hr, the K�Hl KCVM18B30B is a large room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, size is usually the single biggest lever behind a running-cost figure, and at this end of the range there is more capacity to service, which tends to push the number up. Its CEER of 14.6, 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 K�Hl KCVM18B30B cheap to run?
Not especially. At $199 a year it ranks #372 of 404 room air conditioner models we track, in the pricier part of its class to run, though its size and features may still justify that for your needs.
How much does the K�Hl KCVM18B30B cost per month?
Roughly $16.61/mo, spreading the $199/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 1,074 kWh from ENERGY STAR and multiply it by the US average residential electricity rate of $0.1856/kWh, giving about $199 a year. It is an electricity-only estimate and does not include purchase price, water, or installation.
How efficient is the K�Hl KCVM18B30B for its size?
11th percentile once size is factored in. That means its size-adjusted efficiency is not the main reason for the running-cost figure above; its capacity plays a large role too.
Cheaper to run in the same class
Source
ES_31705_KCVM18B30B_061720260320464_9259930View certified room air conditioner listingsENERGY STAR data as of July 2026K�Hl and KCVM18B30B 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.