Century vs ECO-AIR: heat pump ratings compared
Against heat pumps of the same size and type, a typical Century model beats 54% and a typical ECO-AIR model 56%. ECO-AIR rates slightly higher overall.
Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated
Century
54%
of similar heat pumps beaten by its typical model
About average63 models listed
ECO-AIR
56%
of similar heat pumps beaten by its typical model
Above average58 models listed
- Efficiency on a 5°F dayCOP at 5°FCentury: Beats 57%ECO-AIR: Beats 51%
- Heating power kept at 5°FCapacity at 5°F vs 47°FCentury: Beats 52%ECO-AIR: Beats 53%
- Winter-long heating efficiencyHSPF2Century: Beats 44%ECO-AIR: Beats 69%
- Summer-long cooling efficiencySEER2Century: Beats 40%ECO-AIR: Beats 62%
- Hot-day cooling efficiencyEER2Century: Beats 53%ECO-AIR: Beats 47%
Average (50%)Dashed outline: the other brand, for comparison
Want ranks, distributions per size class and cold-weather curves? Switch to Advanced
Rebate standards
CEE 2025
- Century
- 44%
- ECO-AIR
- 62%
Xcel CC
- Century
- 27%
- ECO-AIR
- 45%
CEE Advanced
- Century
- 0%
- ECO-AIR
- 2%
ENERGY STAR CC
- Century
- 30%
- ECO-AIR
- 50%
All-around best, ducted 2.5–3 tons
Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.
Showing Ducted, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?
Century
- 1A-VMH36QV-1ACentury3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 79.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 100% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.90 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.4 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Great
- 2A-VMH28TV-1Century2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 66.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 89% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Great
- Cooling efficiency
- 20.0 (SEER2)
- Top 10%
- Hot-day cooling
- 11.7 (EER2)
- Good
- 3HRG1536S1R-**Awith indoor coil C(A,C,D,E)48D34+TDR and furnace GUH96T110C5MCentury3 tons · 35,400 Btu/h · DuctedNot a cold-climate pick: keeps 65% of its heat at 5°FMeets CEE 2025, CEE 2026
- Heat kept at 5°F
- 65% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.71 (COP at 5°F)
- Top 10%
- Winter efficiency
- 8.2 (HSPF2)
- Good
- Cooling efficiency
- 16.2 (SEER2)
- Good
- Hot-day cooling
- 12.8 (EER2)
- Top 10%
ECO-AIR
- 1M4OX630-36HFN1-M1XECO-AIR3 tons · 36,000 Btu/h · DuctedCold-climate pick, score 79.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 100% (Capacity at 5°F vs 47°F)
- Top 10%
- Efficiency at 5°F
- 1.90 (COP at 5°F)
- Good
- Winter efficiency
- 10.0 (HSPF2)
- Top 10%
- Cooling efficiency
- 19.4 (SEER2)
- Great
- Hot-day cooling
- 12.0 (EER2)
- Great
- 2M3OJ-27HFN1-MECO-AIR2.5 tons · 28,000 Btu/h · DuctedNot a cold-climate pick: keeps 66% of its heat at 5°FMeets CEE 2025, CEE 2026
- Heat kept at 5°F
- 67% (Capacity at 5°F vs 47°F)
- Good
- Efficiency at 5°F
- 2.00 (COP at 5°F)
- Good
- Winter efficiency
- 9.2 (HSPF2)
- Good
- Cooling efficiency
- 21.0 (SEER2)
- Top 10%
- Hot-day cooling
- 11.7 (EER2)
- Good
- 3M3OI-28HFN1-MECO-AIR (sold as Eco Air)2.5 tons · 28,000 Btu/h · DuctedCold-climate pick, score 66.7Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
- Heat kept at 5°F
- 89% (Capacity at 5°F vs 47°F)
- Great
- Efficiency at 5°F
- 1.80 (COP at 5°F)
- Below the middle
- Winter efficiency
- 9.5 (HSPF2)
- Great
- Cooling efficiency
- 20.0 (SEER2)
- Top 10%
- Hot-day cooling
- 11.7 (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.
Open the advanced view