Model
Vissani VWL1225T
Rank #231 means 230 of the 404 room air conditioner models we track cost less to run each year; the 43rd efficiency percentile means it uses less energy for its size than 43% of those models.
What does the Vissani VWL1225T cost to run per year?
The Vissani VWL1225T holds rank #231 of 404 on running cost, at about $111 a year, an unremarkable but typical figure for the class. It uses 38% less energy than the U.S. federal standard model in its class, which would cost about $180/yr to run, a saving of roughly $69 a year. Capacity-normalized, it ranks ahead of 43% of room air conditioner models we track, right in the class's middle band. At a CEER of 15, 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 Vissani VAWA12V4HWT at $111/yr runs a little cheaper and the Whirlpool WHAW-121IN at $111/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 Vissani VWL1225T's $111/yr adds up to roughly $1110 in electricity alone, before purchase price or repairs.
Also sold as: Black+Decker BD12NWES.
By the numbers
The Vissani VWL1225T 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 $111/yr, here is what the Vissani VWL1225T adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Vissani VWL1225T costs about $1110. That is roughly $690 less than a standard model in its class, which would run closer to $1800 over the same ten years.
How the Vissani VWL1225T compares
The room air conditioner class we track runs from $51 to $389 a year. At $111/yr, it runs about $12 a year above the class median of $99, and it is about $60 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $180/yr, the Vissani VWL1225T uses 38% less energy.
What drives its running cost
At 12000 BTU/hr, the Vissani VWL1225T is a mid-size room air conditioner for its class, which spans 5000 to 34100 BTU/hr with a median of 10100 BTU/hr, right in the middle of the capacity range, so capacity is roughly a wash compared with the rest of the class. Its CEER of 15, 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 Vissani VWL1225T cheap to run?
Roughly, yes. Its $111/yr figure is close to the class median, ranking #231 of 404, neither a bargain nor a splurge on running cost.
How much does the Vissani VWL1225T cost per month?
About $9.28 a month, which is the $111 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: 600 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $111 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Vissani VWL1225T for its size?
43rd percentile once size is factored in, a fairly typical result for the class.
Cheaper to run in the same class
| Rank | Model | Cost/yr |
|---|---|---|
| 287 | Vissani VAWA12V4HWT12000 BTU/hr | $111 |
| 286 | Tcl T12WQ2S12000 BTU/hr | $111 |
| 285 | Tcl H12W4MW12000 BTU/hr | $111 |
| 284 | Tcl H12W4KW-CA12000 BTU/hr | $111 |
| 283 | Tcl H12W4KW12000 BTU/hr | $111 |
Source
ES_31912_VWL1225T_12042024104518_1522470View certified room air conditioner listingsENERGY STAR data as of July 2026Vissani and VWL1225T 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.