Skip to content
Rebate.Blue

Lennox vs Trane: heat pump ratings compared

Against heat pumps of the same size and type, a typical Lennox model beats 56% and a typical Trane model 52%. Lennox rates slightly higher overall.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated

Lennox

56%

of similar heat pumps beaten by its typical model

Above average

313 models listed

Trane

52%

of similar heat pumps beaten by its typical model

About average

309 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°FLennox: Beats 58%Trane: Beats 69%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FLennox: Beats 48%Trane: Beats 43%
  • Winter-long heating efficiencyHSPF2Lennox: Beats 49%Trane: Beats 35%
  • Summer-long cooling efficiencySEER2Lennox: Beats 49%Trane: Beats 36%
  • Hot-day cooling efficiencyEER2Lennox: Beats 54%Trane: Beats 65%

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

    Lennox
    46%
    Trane
    31%

  • Xcel CC

    Lennox
    29%
    Trane
    22%

  • CEE Advanced

    Lennox
    1%
    Trane
    0%

  • ENERGY STAR CC

    Lennox
    20%
    Trane
    10%

Top cold-climate picks, ducted 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 Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

Lennox

  1. 1MLB048S4S-1Pwith ducted air handler MMDB048S4-2PLennox4 tons · 48,000 Btu/h · DuctedKeeps 96% of its heat at 5°FMeets ENERGY STAR CC
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.02 (COP at 5°F)
    Good
    Seasonal efficiency
    10.3 (HSPF2)
    Top 10%
    88.9score / 100
  2. 2MLB048S4S-2Pwith ducted air handler MMDB048S4-*PLennox4 tons · 48,000 Btu/h · DuctedKeeps 96% of its heat at 5°FMeets none of the standards tracked here
    Heat kept at 5°F
    96% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.02 (COP at 5°F)
    Good
    Seasonal efficiency
    10.2 (HSPF2)
    Top 10%
    88.6score / 100
  3. 3SL25XPV-048-230A**with ducted air handler CBA38MV-048-230*+TDRLennox4 tons · 46,000 Btu/h · DuctedKeeps 80% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    80% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Good
    Seasonal efficiency
    9.8 (HSPF2)
    Top 10%
    76.8score / 100

Trane

  1. 14A6C7048A3with ducted air handler 4PX*DU60BS3+P0V0C000M50SCTrane (sold as American Standard)Also listed as 4A6C7048A44 tons · 46,500 Btu/h · DuctedKeeps 101% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    101% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    3.60 (COP at 5°F)
    Top 10%
    Seasonal efficiency
    8.1 (HSPF2)
    Good
    84.1score / 100
  2. 24TWV0X48A1with indoor coil D(A,C,E)60B44+TDR and furnace S9V2B060U4PSB+RPTrane3.5 tons · 43,000 Btu/h · DuctedKeeps 99% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    99% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.32 (COP at 5°F)
    Great
    Seasonal efficiency
    8.2 (HSPF2)
    Good
    80.4score / 100
  3. 34TWV8X48A1with indoor coil D(A,C,E)60B44+TDR and furnace S9V2C080U5PSC+RPTrane4 tons · 45,000 Btu/h · DuctedKeeps 97% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    97% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.23 (COP at 5°F)
    Great
    Seasonal efficiency
    8.2 (HSPF2)
    Good
    78.9score / 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