Lennox heat pumps: how do their ratings compare?

A typical Lennox heat pump beats 56% of similar heat pumps (same size and type), which is above average. Lennox has 313 heat pump models in this list, also sold as Allied Commercial, AirEase, Allied, Armstrong Air, Comfort-Aire and 2 more names.

Covers older R-410A heat pumps, no longer installed new. See models sold today · Updated Oct 10, 2026

Overall score

56%

of similar heat pumps beaten by its typical model

Above average

Ranked 13 among brands with a QMID on file. Based on 281 models with every rating.

Lennox, rating by ratingStrongest on efficiency on a 5°f day (beats 58%), weakest on heating power kept at 5°f (beats 48%).

Efficiency on a 5°F dayCOP at 5°FBeats 58%
Heating power kept at 5°FCapacity at 5°F vs 47°FBeats 48%
Winter-long heating efficiencyHSPF2Beats 49%
Summer-long cooling efficiencySEER2Beats 49%
Hot-day cooling efficiencyEER2Beats 54%

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.

46%
meet CEE 2025 Tier 1, the level many utility rebates use.
144 models. All brands: 48%.
See them
29%
meet Xcel Energy Colorado’s cold-climate rebate levels.
92 models. All brands: 38%.
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1%
reach the cold-climate tier: full heating output and a COP of 2.1 or more at 5°F.
3 models. All brands: 1%.
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Top Lennox cold-climate picks, by size

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, 2 tons (21,000–26,999 Btu/h cooling). What size is my system?

14 of Lennox’s 22 models of this size and type qualify.

1MLB024S4S-1Pwith ductless indoor unit M33C024S4-1PLennoxAlso sold as Comfort-Aire A-VMH24SV-12 tons · 24,000 Btu/h · DuctlessKeeps 103% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
Heat kept at 5°F
103% (Capacity at 5°F vs 47°F)
Top 10%
Efficiency at 5°F
2.00 (COP at 5°F)
Good
Seasonal efficiency
11.5 (HSPF2)
Top 10%
86.1score / 100
2A-VMH24SU-1with ductless indoor unit B-VMH24SV-1Lennox (sold as Comfort-Aire)Also listed as A-KMH24SU-12 tons · 24,000 Btu/h · DuctlessKeeps 86% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
Heat kept at 5°F
86% (Capacity at 5°F vs 47°F)
Good
Efficiency at 5°F
2.21 (COP at 5°F)
Top 10%
Seasonal efficiency
11.4 (HSPF2)
Top 10%
84.5score / 100
3A-VMH24SU-1Awith ductless indoor unit B-VMH24SU-1ALennox (sold as Comfort-Aire)Also listed as A-KMH24SV-12 tons · 21,600 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets 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
2.07 (COP at 5°F)
Good
Seasonal efficiency
10.4 (HSPF2)
Great
82.7score / 100
4A-KMH24SU-1Awith ductless indoor unit B-KMH24SU-1ALennox (sold as Comfort-Aire)2 tons · 21,600 Btu/h · DuctlessKeeps 100% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
100% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
1.89 (COP at 5°F)
Good
Seasonal efficiency
10.4 (HSPF2)
Great
76.8score / 100
5LIZ024HO-210P432-1LennoxAlso sold as Comfort-Aire A-VFH24TC-12 tons · 23,200 Btu/h · DuctlessKeeps 90% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
Heat kept at 5°F
90% (Capacity at 5°F vs 47°F)
Great
Efficiency at 5°F
2.10 (COP at 5°F)
Great
Seasonal efficiency
10.0 (HSPF2)
Good
76.1score / 100

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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