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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 average

63 models listed

ECO-AIR

56%

of similar heat pumps beaten by its typical model

Above average

58 models listed

Rating by ratingEach bar is the share of same-size, same-type heat pumps that a typical model beats, so the two brands compare fairly even if they make different sizes.
  • 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

Share of each brand’s models that meet the level. Programs can have other rules too.

  • 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%

Top cold-climate picks, ductless 3.5–4.5 tons

Only units that keep at least 70% of their heat at 5°F, ranked on heat kept, efficiency at 5°F and seasonal efficiency (HSPF2), against units their size.

Showing Ductless, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Century

  1. 1A-VMH48PV-1Century4 tons · 48,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    76.2score / 100
  2. 2A-VMH55PV-1Century4.5 tons · 55,000 Btu/h · DuctlessKeeps 85% of its heat at 5°FMeets 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
    1.77 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    38.9score / 100

ECO-AIR

  1. 1M5OG-48HFN1-M-[X]ECO-AIR (sold as Eco Air)4 tons · 48,000 Btu/h · DuctlessKeeps 92% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    92% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Good
    76.2score / 100
  2. 2MOE30U-48HFN1-M-[X](GA)with ductless indoor unit MCD1-48HRFN1-M(GA)ECO-AIR4 tons · 48,000 Btu/h · DuctlessKeeps 91% of its heat at 5°FMeets ENERGY STAR CC
    Heat kept at 5°F
    91% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Good
    Seasonal efficiency
    10.7 (HSPF2)
    Top 10%
    76.0score / 100
  3. 3M5OA-55HFN1-M-[X]ECO-AIR (sold as Eco Air)4.5 tons · 55,000 Btu/h · DuctlessKeeps 85% of its heat at 5°FMeets 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
    1.77 (COP at 5°F)
    Below the middle
    Seasonal efficiency
    9.5 (HSPF2)
    Below the middle
    38.9score / 100

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