WCVT12B30B (Wallmaster, ENERGY STAR Most Efficient) uses 636.7 kWh per year, an estimated $108.24/yr to run, ranking 56th cheapest of 80 sampled room air conditioners, 19% above the $90.70/yr median of the 80 sampled models.
Certification: ENERGY STAR Most Efficient
WCVT12B30B
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| Cost rank in category | 56th of 80 |
| Cost percentile | bottom 69% |
| Vs category median | 19% above ($90.70/yr) |
| Rank within same status | 30th of 48 (Median $96.39/yr) |
| Rank within similar capacity | 31st of 43 · cooling capacity btu hour 9440~14160 (Median $95.62/yr) |
| Category low to high | $44.27/yr ~ $313.99/yr |
| Spec | Value |
|---|---|
| height inches | 15.8 |
| width inches | 26.5 |
| depth inches | 21.0 |
| weight lbs | 110.0 |
| cooling capacity btu hour | 11800 |
| voltage volts | 230 |
| type | Through the Wall |
| installation mounting type | Does Not Straddle Window or Windowsill |
| support bracket | No |
| heating mode | No |
| casement window | None |
| product class | 8b. Without reverse cycle, without louvered sides, and 11,000 to 13,999 Btu/h |
| variable speed compressor | Yes |
| refrigerant type | R-32 |
| refrigerant with gwp | R-32 (GWP:675 | Lower GWP) |
| combined energy efficiency ratio ceer | 13.9 |
| Model | Certification | Est. energy cost |
|---|---|---|
| MT12VB1 | ENERGY STAR Certified | $110.08/yr |
| MT12VB2 | ENERGY STAR Certified | $110.08/yr |
| MAW12HV1KWT-A | ENERGY STAR Most Efficient | $106.25/yr |
| MWAUQB-12HRFN8-BCN4 | ENERGY STAR Most Efficient | $106.25/yr |
| MAW12RV1KWT | ENERGY STAR Certified | $95.62/yr |
The Wallmaster WCVT12B30B is certified at 636.7 kWh per year, which works out to about $108.24/yr at the flat rate assumed on this site. Certified figures come from standardized test procedures, so your actual bill varies with usage and your local electricity rate.
Among the 80 room air conditioners compared on this site, the Wallmaster WCVT12B30B ranks 56th cheapest to run and sits in the bottom 69% of the cost range. That is 19% above the category median of $90.70/yr. The cheapest sampled model runs at $44.27/yr and the most expensive at $313.99/yr.
The Wallmaster WCVT12B30B is listed as ENERGY STAR Most Efficient. Among the 48 sampled room air conditioners with that status the median running cost is $96.39/yr, and the Wallmaster WCVT12B30B ranks 30th cheapest within that group. Certification status reflects efficiency relative to product class, not absolute energy use.
Using the certified cooling capacity btu hour value of 11800.0, 43 sampled models fall within +/-20% (9440 to 14160), and the Wallmaster WCVT12B30B ranks 31st cheapest among them. The median for that size band is $95.62/yr. Comparing within a size band is more meaningful than comparing certification labels.
Simple estimate, 30 days per month (assuming $0.17/kWh)