Cooper & Hunter CH-STLS-14AC vs Keystone KSTAP121HINV
Two of the portable air conditioners in our best portable air conditioners comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: Official DOE SACC 12000 Btu/h, CEER 14.2, certified as dual-duct, variable-speed compressor
Check price at AmazonBest for: Official DOE SACC 12000 Btu/h, CEER 14.2, certified as dual-duct, variable-speed compressor
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Cooper & Hunter CH-STLS-14AC | Keystone KSTAP121HINV | Weight |
|---|---|---|---|
| DOE SACCOfficial DOE seasonally adjusted cooling capacity in Btu/h. Missing values take the category minimum. | 12000 Btu/h | 12000 Btu/h | 30% |
| DOE CEEROfficial DOE combined energy efficiency ratio in Btu/Wh. Higher is more efficient. Missing values take the category minimum. | 14.2 | 14.2 | 32% |
| Dual-duct certificationYes when the official DOE record lists a dual-duct configuration used for testing. Single-duct or unstated counts as no. | Yes | Yes | 20% |
| Variable-speed compressorYes when the official DOE record marks a variable-speed compressor as Yes. Unstated counts as no. | Yes | Yes | 10% |
| Heating functionYes when the official DOE record lists a heating function. Unstated counts as no. | Yes | Yes | 8% |
| Seasonally adjusted cooling capacity (DOE SACC) | 12000 Btu/h | 12000 Btu/h | info |
| Combined energy efficiency ratio (DOE CEER) | 14.2 Btu/Wh | 14.2 Btu/Wh | info |
| Duct configuration used for testing (DOE) | Dual-duct | Dual-duct | info |
| Presence of heating function (DOE) | Yes | Yes | info |
| Variable-speed compressor (DOE) | Yes | Yes | info |
| Primary condensate removal (DOE) | Auto-evaporation | Auto-evaporation | info |
| Full-load SACC, if listed (DOE) | 12000 Btu/h | 12000 Btu/h | info |
| Estimated cooling power (computed) | 845 watts, computed as certified capacity ÷ CEER | 845 watts, computed as certified capacity ÷ CEER | info |
| Certified individual model number | CH-STLS-14AC | KSTAP121HINV | info |
| Basic model number (DOE) | CH-STLS-14AC | KSTAP121HINV | info |
| CoolPick score | 9.8/10 | 9.8/10 | 100% |
Where each one comes out ahead
Cooper & Hunter CH-STLS-14AC
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Official DOE CEER of 14.2
- Highest official DOE SACC in this comparison (12000 Btu/h)
- Certified to DOE as a dual-duct configuration
- DOE record lists a variable-speed compressor
- DOE record lists a heating function
Watch out for
- No additional scored gaps in the official record we used
Keystone KSTAP121HINV
No scored spec where it is strictly ahead; its case rests on the strengths below.
What we like
- Official DOE CEER of 14.2
- Highest official DOE SACC in this comparison (12000 Btu/h)
- Certified to DOE as a dual-duct configuration
- DOE record lists a variable-speed compressor
- DOE record lists a heating function
Watch out for
- No additional scored gaps in the official record we used
Verdict
On published specs these two score the same. Specs don't capture sound character or feel, so weigh the pros and cons above too.
- Choose the Cooper & Hunter CH-STLS-14AC if this sounds like you: official DOE SACC 12000 Btu/h, CEER 14.2, certified as dual-duct, variable-speed compressor.
- Choose the Keystone KSTAP121HINV if this sounds like you: official DOE SACC 12000 Btu/h, CEER 14.2, certified as dual-duct, variable-speed compressor.
- Cooper & Hunter CH-STLS-14AC: U.S. DOE CCMS: CH-STLS-14AC
- Cooper & Hunter CH-STLS-14AC: U.S. DOE CCMS: Portable Air Conditioners
- Keystone KSTAP121HINV: U.S. DOE CCMS: KSTAP121HINV
- Keystone KSTAP121HINV: U.S. DOE CCMS: Portable Air Conditioners