Through-wallENERGY STAR
Frigidaire WallFit 12K
Cooling
12,000 BTU
Covers
550 ft²
Efficiency
10.5 CEER
Noise
59 dB
$570 est.
via partner retailers Through-wall ENERGY STAR
Keystone 14K Through-Wall
by Keystone · Model KSTAT14-2C
Biggest coverage of the group: 14,000 BTU for rooms up to 700 sq ft with a temperature-sensing remote.
Cooling
14,000 BTU
Covers
700 ft²
Efficiency
10.5 EER
Noise
57 dB
$600 est.
typical street price · via Amazon Is 14,000 BTU right for your room? Run the sizing calculator
Strengths & trade-offs
Pros
- Cools up to 700 sq ft
- Follow Me temperature remote
- Strong value per BTU
Cons
- Requires 230V/20A outlet
- Basic controls, no app
What the Keystone 14K Through-Wall costs to run
Estimated from this unit's 10.5 EER rating at 8 hours/day of cooling, using average residential electricity rates for each US climate zone. Your usage and utility rate will shift these numbers — run the calculator for your exact room.
| Climate zone | Example regions | Est. cost / month |
|---|---|---|
| Cool North | Pacific NW, Upper Midwest, New England | $51 /mo |
| Mixed / Temperate | Mid-Atlantic, Midwest, Mountain | $54 /mo |
| Hot & Humid | Southeast, Gulf Coast, Texas | $45 /mo |
| Hot & Dry | Southwest, Desert | $48 /mo |
Full specifications
| Type | Through-wall air conditioner |
| Cooling capacity | 14,000 BTU |
| Rated coverage | 700 ft² |
| Efficiency | 10.5 EER |
| Noise (low) | 57 dB |
| Smart features | None |
| ENERGY STAR | Yes |
| Model number | KSTAT14-2C |
| Typical street price | $600 |
Specs from manufacturer data; price and ratings are snapshots and may vary. See how we evaluate.
Similar units
Full comparison table Compare it against
Through-wallENERGY STAR
GE 12K Heat/Cool SmartHQ
Cooling
12,000 BTU
Covers
550 ft²
Efficiency
9.5 CEER
Noise
60 dB
$849 est.
via partner retailersThrough-wallENERGY STAR
LG LT1016CER Through-Wall
Cooling
9,800 BTU
Covers
450 ft²
Efficiency
10.6 CEER
Noise
56 dB
$549 est.
via partner retailers