Century vs ECO-AIR: heat pump ratings compared
Against heat pumps of the same size and type, a typical Century model beats 50% and a typical ECO-AIR model 65%. ECO-AIR rates higher overall.
Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated
Century
50%
of similar heat pumps beaten by its typical model
About average59 models listed
ECO-AIR
65%
of similar heat pumps beaten by its typical model
Well above average60 models listed
- Efficiency on a 5°F dayCOP at 5°FCentury: Beats 50%ECO-AIR: Beats 62%
- Heating power kept at 5°FCapacity at 5°F vs 47°FCentury: Beats 49%ECO-AIR: Beats 61%
- Winter-long heating efficiencyHSPF2Century: Beats 52%ECO-AIR: Beats 73%
- Summer-long cooling efficiencySEER2Century: Beats 45%ECO-AIR: Beats 69%
- Hot-day cooling efficiencyEER2Century: Beats 53%ECO-AIR: Beats 59%
Average (50%)Dashed outline: the other brand, for comparison
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Rebate standards
CEE 2025
- Century
- 44%
- ECO-AIR
- 90%
Xcel CC
- Century
- 41%
- ECO-AIR
- 80%
CEE Advanced
- Century
- 3%
- ECO-AIR
- 2%
ENERGY STAR CC
- Century
- 32%
- ECO-AIR
- 82%
All-around best, ductless 3.5–4.5 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?
Century
- 1A-VHP486A-1Century4 tons · 47,000 Btu/h · DuctlessCold-climate pick, score 73.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 96% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Below the middle
- Winter efficiency
- 11.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 23.0 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Good
- 2A-VHP556A-1Century4.5 tons · 51,000 Btu/h · DuctlessCold-climate pick, score 66.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 85% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.5 (HSPF2)
- Good
- Cooling efficiency
- 22.2 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Good
ECO-AIR
- 1EDMO-48HECO-AIRAlso sold as Eco Air EDMO-48H-6GX4 tons · 47,000 Btu/h · DuctlessCold-climate pick, score 73.4Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 96% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Below the middle
- Winter efficiency
- 11.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 23.0 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Good
- 2EDMO-48EECO-AIRAlso sold as Eco Air EDMO-48E-6GX4 tons · 46,000 Btu/h · DuctlessCold-climate pick, score 56.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 78% (Capacity at 5°F vs 47°F)
- Below the middle
- Efficiency at 5°F
- 2.05 (COP at 5°F)
- Good
- Winter efficiency
- 10.5 (HSPF2)
- Good
- Cooling efficiency
- 22.2 (SEER2)
- Great
- Hot-day cooling
- 12.3 (EER2)
- Great
- 3EDMO-53HECO-AIRAlso sold as Eco Air EDMO-53H-6GX4.5 tons · 51,000 Btu/h · DuctlessCold-climate pick, score 66.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 85% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Below the middle
- Winter efficiency
- 10.5 (HSPF2)
- Good
- Cooling efficiency
- 22.2 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Good
These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.
Next steps
The advanced view adds ranks, both brands’ models inside every size class, standout models per rating and cold-weather curves.
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