Skip to content
Rebate.Blue

AIR-CON vs Century: heat pump ratings compared

Against heat pumps of the same size and type, a typical AIR-CON model beats 45% and a typical Century model 50%. Century rates slightly higher overall.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

AIR-CON

45%

of similar heat pumps beaten by its typical model

About average

41 models listed

Century

50%

of similar heat pumps beaten by its typical model

About average

59 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°FAIR-CON: Beats 57%Century: Beats 50%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FAIR-CON: Beats 33%Century: Beats 49%
  • Winter-long heating efficiencyHSPF2AIR-CON: Beats 45%Century: Beats 52%
  • Summer-long cooling efficiencySEER2AIR-CON: Beats 43%Century: Beats 45%
  • Hot-day cooling efficiencyEER2AIR-CON: Beats 39%Century: Beats 53%

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

    AIR-CON
    44%
    Century
    44%

  • Xcel CC

    AIR-CON
    34%
    Century
    41%

  • CEE Advanced

    AIR-CON
    0%
    Century
    3%

  • ENERGY STAR CC

    AIR-CON
    0%
    Century
    32%

All-around best, ductless 2.5–3 tons

Balances heating (5°F output and efficiency, HSPF2) and cooling (SEER2, EER2), each rating against units their size.

Showing Ductless, 2.5–3 tons (27,000–38,999 Btu/h cooling). What size is my system?

AIR-CON

  1. 1CH7H6C36KN-AEAIR-CON3 tons · 37,600 Btu/h · DuctlessNot a cold-climate pick: keeps 45% of its heat at 5°FMeets CEE 2025
    Heat kept at 5°F
    45% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Top 10%
    Winter efficiency
    9.6 (HSPF2)
    Below the middle
    Cooling efficiency
    24.0 (SEER2)
    Top 10%
    Hot-day cooling
    14.0 (EER2)
    Top 10%
    69.7score / 100Heating 46 · Cooling 94
  2. 2ASGCI8H4M36with ductless indoor unit ASGEC8H4M36AIR-CON3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 62.8Meets Xcel CC
    Heat kept at 5°F
    70% (Capacity at 5°F vs 47°F)
    Below the middle
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Top 10%
    Winter efficiency
    10.3 (HSPF2)
    Good
    Cooling efficiency
    20.0 (SEER2)
    Below the middle
    Hot-day cooling
    9.6 (EER2)
    Below the middle
    43.9score / 100Heating 63 · Cooling 25

Century

  1. 1A-VHP365A-1Century3 tons · 36,000 Btu/h · DuctlessCold-climate pick, score 78.0Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.7 (HSPF2)
    Great
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    13.0 (EER2)
    Great
    78.3score / 100Heating 76 · Cooling 81
  2. 2A-VHP284A-1Century2.5 tons · 27,000 Btu/h · DuctlessCold-climate pick, score 72.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    100% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    23.0 (SEER2)
    Great
    Hot-day cooling
    12.5 (EER2)
    Great
    74.4score / 100Heating 73 · Cooling 76
  3. 3A-VHP33SA-1with ductless indoor unit B-VHP33SA-1Century3 tons · 33,000 Btu/h · DuctlessCold-climate pick, score 61.3Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Below the middle
    Winter efficiency
    10.5 (HSPF2)
    Great
    Cooling efficiency
    19.5 (SEER2)
    Below the middle
    Hot-day cooling
    12.0 (EER2)
    Good
    48.9score / 100Heating 61 · Cooling 37

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