Comfort Zone portable air conditioners
4 Comfort Zone model numbers are certified to the U.S. Department of Energy, in 4 rating profiles. The most efficient is the CZ-PAC-10K-C/H-WF-6A at 7.9 CEER and 10,000 BTU of real cooling. The median Comfort Zone unit is rated 7.6 CEER; the median for all portable units is 7.3.
Units with identical ratings are also certified under Midea, Whynter, Frigidaire, Whirlpool, TCL, Pelonis, Serenelife, Soleusair and 83 other brands.
Comfort Zone models, ranked by CEER
| # | Comfort Zone model numbers | BTU (SACC) | CEER | Per year | Features |
|---|---|---|---|---|---|
| 1 | CZ-PAC-10K-C/H-WF-6A | 10,000 | 7.9 | $171 | Single-hose, Heat |
| 2 | CZ-PAC-8K-C/H-WF-6A | 8,250 | 7.6 | $147 | Single-hose, Heat |
| 3 | CZ-PAC-6K-WF-6A | 6,300 | 6.6 | $129 | Single-hose |
| 4 | CZ-PAC-5K-WF-6A | 5,000 | 6.2 | $109 | Single-hose |
Each row is one rating profile: all Comfort Zone model numbers certified at the same capacity, efficiency, hose design, heating, drain type and compressor. Yearly cost at 750 hours and 18.0¢/kWh. Size by SACC, the cooling the unit really delivers: how it differs from the box.
About Comfort Zone portable units
Sizes
- 5,000 BTU and under1 models · best 6.2 CEER
- 6,000 BTU1 models · best 6.6 CEER
- 8,000 BTU1 models · best 7.6 CEER
- 10,000 BTU1 models · best 7.9 CEER
Features
- Dual-hose0 of 4 model numbers
- Also heat2 of 4
- Inverter compressor0 of 4
Questions
- Which Comfort Zone portable air conditioner is the most efficient?
- By certified CEER, the CZ-PAC-10K-C/H-WF-6A (7.9 CEER, 10,000 BTU of real cooling, one hose). Efficiency can only be compared between units that cool about the same, so check the size class too.
- How efficient are Comfort Zone portable air conditioners?
- The median certified Comfort Zone model number is rated 7.6 CEER, against 7.3 for all certified portable units. None of its certified models has two hoses, which is the main reason one brand's average beats another's. The data measures efficiency and cooling; it says nothing about noise or reliability.
- What sizes do Comfort Zone portable air conditioners come in?
- Real cooling (SACC) from 5,000 to 10,000 BTU across 4 size classes: 5,000 BTU and under, 6,000 BTU, 8,000 BTU, 10,000 BTU. The BTU printed on a Comfort Zone box is usually higher than its SACC, so size your room by the SACC in the table.
- Are Comfort Zone portable air conditioners the same as other brands?
- Some are, as far as the data goes. 91 other brands have model numbers certified at exactly the same ratings as Comfort Zone units, including Midea, Whynter, Frigidaire, Whirlpool, TCL. Identical ratings often mean the same factory, though the DOE data has no dimensions to confirm it.