Skip to content
Rebate.Blue

Friedrich vs Lennox: heat pump ratings compared

Against heat pumps of the same size and type, a typical Friedrich model beats 46% and a typical Lennox model 56%. Lennox rates higher overall.

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

Friedrich

46%

of similar heat pumps beaten by its typical model

About average

117 models listed

Lennox

56%

of similar heat pumps beaten by its typical model

Above average

313 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°FFriedrich: Beats 58%Lennox: Beats 58%
  • Heating power kept at 5°FCapacity at 5°F vs 47°FFriedrich: Beats 45%Lennox: Beats 48%
  • Winter-long heating efficiencyHSPF2Friedrich: Beats 31%Lennox: Beats 49%
  • Summer-long cooling efficiencySEER2Friedrich: Beats 36%Lennox: Beats 49%
  • Hot-day cooling efficiencyEER2Friedrich: Beats 39%Lennox: Beats 54%

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

    Friedrich
    38%
    Lennox
    46%

  • Xcel CC

    Friedrich
    32%
    Lennox
    29%

  • CEE Advanced

    Friedrich
    2%
    Lennox
    1%

  • ENERGY STAR CC

    Friedrich
    28%
    Lennox
    20%

Top cold-climate picks, ducted 2.5–3 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, 2.5–3 tons (27,000–38,999 Btu/h cooling), the most-listed ducted size. Pick yours above. What size is my system?

Friedrich

  1. 1FRP18AZ36AJVCwith indoor coil TCFZ3621MEAAM and furnace FR801V0504A17UHUFriedrich3 tons · 34,200 Btu/h · DuctedKeeps 121% of its heat at 5°FMeets CEE 2025, CEE 2026, CEE Advanced, Xcel CC, DOE CCHP, ENERGY STAR CC
    Heat kept at 5°F
    121% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    8.5 (HSPF2)
    Good
    80.6score / 100
  2. 2FPHFR36A3Awith ducted air handler FPHSD36A3AFriedrich3 tons · 36,000 Btu/h · DuctedKeeps 76% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC
    Heat kept at 5°F
    76% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.20 (COP at 5°F)
    Great
    Seasonal efficiency
    9.5 (HSPF2)
    Great
    78.1score / 100
  3. 3WFPU18Z363Cwith ducted air handler DC37A44-210LFriedrich2.5 tons · 30,000 Btu/h · DuctedKeeps 81% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    81% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.08 (COP at 5°F)
    Great
    Seasonal efficiency
    9.4 (HSPF2)
    Great
    75.5score / 100

Lennox

  1. 1MLB036S4S-1Pwith ducted air handler MMDB036S4-2PLennoxAlso listed as MLB036S4S-2P3 tons · 36,000 Btu/h · DuctedKeeps 90% of its heat at 5°FMeets ENERGY STAR CC
    Heat kept at 5°F
    90% (Capacity at 5°F vs 47°F)
    Top 10%
    Efficiency at 5°F
    1.98 (COP at 5°F)
    Good
    Seasonal efficiency
    11.0 (HSPF2)
    Top 10%
    83.4score / 100
  2. 2A-VMH36QV-1ALennox (sold as Comfort-Aire)3 tons · 36,000 Btu/h · DuctedKeeps 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)
    Top 10%
    Efficiency at 5°F
    1.90 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Top 10%
    79.9score / 100
  3. 3A-VCD36SA-1with ducted air handler MCD30/36C1ALennox (sold as Comfort-Aire)3 tons · 35,000 Btu/h · DuctedKeeps 82% of its heat at 5°FMeets CEE 2025, CEE 2026, Xcel CC, ENERGY STAR CC
    Heat kept at 5°F
    82% (Capacity at 5°F vs 47°F)
    Good
    Efficiency at 5°F
    2.00 (COP at 5°F)
    Good
    Seasonal efficiency
    10.0 (HSPF2)
    Top 10%
    78.6score / 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