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Lennox heat pumps: how do their ratings compare?

A typical Lennox heat pump beats 48% of similar heat pumps (same size and type), which is about average. Lennox has 331 heat pump models in this list, also sold as Airease, Allied, Allied Commercial, Armstrong Air, Concord and 2 more names.

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

Overall score

48%

of similar heat pumps beaten by its typical model

About average

Ranked 22 among brands with a QMID on file. Based on 366 models with every rating.

Lennox, rating by ratingStrongest on hot-day cooling efficiency (beats 57%), weakest on heating power kept at 5°f (beats 43%).
  • Efficiency on a 5°F dayCOP at 5°FBeats 46%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 43%
  • Winter-long heating efficiencyHSPF2Beats 44%
  • Summer-long cooling efficiencySEER2Beats 45%
  • Hot-day cooling efficiencyEER2Beats 57%

Average (50%)

Each bar: the share of similar heat pumps a typical model beats on that rating.

Want Lennox’s ranks and its models inside every size class? Switch to Advanced

Rebate standards

Share of this brand’s models that meet the efficiency levels rebate programs use. Programs can have other rules too.

  • 44%

    meet CEE 2025 Tier 1, the level many utility rebates use.

    145 models. All brands: 57%.

    See them

  • 36%

    meet Xcel Energy Colorado’s cold-climate rebate levels.

    118 models. All brands: 53%.

    See them

  • 3%

    reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.

    9 models. All brands: 3%.

    See them

Lennox all-around best, by size

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

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

97 of Lennox’s 97 models of this size and type have all five ratings.

  1. 1SL22KLV-048-230A**with indoor coil CK40[C,U]T-60C-**+TDR and furnace SL280UH080NV60CLennox4 tons · 46,000 Btu/h · DuctedCold-climate pick, score 84.9Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    98% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.02 (COP at 5°F)
    Good
    Winter efficiency
    9.4 (HSPF2)
    Great
    Cooling efficiency
    20.5 (SEER2)
    Top 10%
    Hot-day cooling
    12.4 (EER2)
    Top 10%
    86.7score / 100Heating 76 · Cooling 97
  2. 2EL21KLV-048-230A**with indoor coil CK40[C,U]T-60C-**+TDR and furnace EL280UH110E48CLennoxAlso sold as Armstrong Air A7CP21V48P-**A4 tons · 47,500 Btu/h · DuctedCold-climate pick, score 73.1Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    73% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.14 (COP at 5°F)
    Great
    Winter efficiency
    9.6 (HSPF2)
    Great
    Cooling efficiency
    20.5 (SEER2)
    Top 10%
    Hot-day cooling
    12.2 (EER2)
    Top 10%
    84.1score / 100Heating 72 · Cooling 97
  3. 3A-VHP486A-1Lennox (sold as Comfort-Aire)4 tons · 47,000 Btu/h · DuctedCold-climate pick, score 82.7Meets 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
    2.00 (COP at 5°F)
    Good
    Winter efficiency
    11.0 (HSPF2)
    Top 10%
    Cooling efficiency
    20.4 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    83.9score / 100Heating 83 · Cooling 85
  4. 4SL22KLV-060-230A**with indoor coil D(A,C,E)60D3J+TDR and furnace SLP99UH110XV60CLennox4.5 tons · 52,500 Btu/h · DuctedCold-climate pick, score 90.8Meets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    115% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    3.09 (COP at 5°F)
    Top 10%
    Winter efficiency
    9.0 (HSPF2)
    Good
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    11.2 (EER2)
    Good
    82.1score / 100Heating 91 · Cooling 73
  5. 5A-VHP556A-1Lennox (sold as Comfort-Aire)4.5 tons · 53,000 Btu/h · DuctedCold-climate pick, score 81.2Meets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    87% (Capacity at 5°F vs 47°F)
    Great
    Efficiency at 5°F
    2.10 (COP at 5°F)
    Good
    Winter efficiency
    10.7 (HSPF2)
    Top 10%
    Cooling efficiency
    20.0 (SEER2)
    Top 10%
    Hot-day cooling
    11.7 (EER2)
    Good
    82.0score / 100Heating 81 · Cooling 83

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What to do next

The advanced view has Lennox’s ranks on each rating, its models inside every size and type, cold-weather curves and its newest certifications.

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