Model
Wallmaster WHVT14B33B
Rank #350 means 349 of the 404 room air conditioner models we track cost less to run each year; the 6th efficiency percentile means it uses less energy for its size than 6% of those models.
What does the Wallmaster WHVT14B33B cost to run per year?
The Wallmaster WHVT14B33B costs about $156 a year to run, well up the cost table for its class at rank #350 of 404. It uses 47% less energy than the U.S. federal standard model in its class, which would cost about $293/yr to run, a saving of roughly $137 a year. Its size-adjusted efficiency percentile of 6 means the low running cost, where it exists, is driven almost entirely by capacity rather than efficiency. Its CEER of 12.8 reflects combined energy efficiency ratio, one of the class's core efficiency levers.
Immediately around it on the leaderboard, the Whirlpool WHAW-151IN at $145/yr runs a little cheaper and the Friedrich KCVS16B30A at $157/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 Wallmaster WHVT14B33B's $156/yr adds up to roughly $1560 in electricity alone, before purchase price or repairs.
By the numbers
The Wallmaster WHVT14B33B 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 $156/yr, here is what the Wallmaster WHVT14B33B adds up to before purchase price, water, or repairs enter the math.
Left running for a decade at today's US average rate, the Wallmaster WHVT14B33B costs about $1560. That is roughly $1370 less than a standard model in its class, which would run closer to $2930 over the same ten years.
How the Wallmaster WHVT14B33B compares
The room air conditioner class we track runs from $51 to $389 a year. At $156/yr, it runs about $57 a year above the class median of $99, and it is about $105 a year more than the cheapest room air conditioner to run at $51. Against the US federal standard model for its class at about $293/yr, the Wallmaster WHVT14B33B uses 47% less energy.
What drives its running cost
At 14300 BTU/hr, the Wallmaster WHVT14B33B 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. Beyond size, its CEER of 12.8, below the class median of 15, is the class's own efficiency yardstick, combined energy efficiency ratio, and it is what separates two similarly sized models with different running costs.
- 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 Wallmaster WHVT14B33B cheap to run?
Its $156/yr running cost, rank #350 of 404, is above what most room air conditioner models we track cost to run, so this is not one of the cheaper picks on electricity alone.
How much does the Wallmaster WHVT14B33B cost per month?
About $12.96 a month, which is the $156 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: 838 kWh from ENERGY STAR times the US average of $0.1856/kWh comes to about $156 a year. It covers electricity only, not the purchase price, water, or installation.
How efficient is the Wallmaster WHVT14B33B for its size?
6th 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
| Rank | Model | Cost/yr |
|---|---|---|
| 349 | Whirlpool WHAW-151IN15000 BTU/hr | $145 |
| 348 | Tcl T15WQ2S15000 BTU/hr | $145 |
| 347 | Tcl H15W4KW-CA15000 BTU/hr | $145 |
| 346 | Tcl H15W4KW15000 BTU/hr | $145 |
| 345 | Friedrich CCV15A10A15000 BTU/hr | $145 |
Source
ES_31705_WHVT14B33B_061720260321622_2016071View certified room air conditioner listingsENERGY STAR data as of July 2026Wallmaster and WHVT14B33B 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.