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Liberty Heating & Air Conditioning vs RUSSELL heat pumps

Measured against models of the same size and duct type, Liberty Heating & Air Conditioning and RUSSELL split the 6 ratings 3–3. Liberty Heating & Air Conditioning has 61 outdoor models, RUSSELL has 60 outdoor models. Liberty Heating & Air Conditioning and RUSSELL have no QMID on file and are not ranked.

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CompareData as of updated · sources

Against comparable models

Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.
Liberty Heating & Air Conditioning and RUSSELL on every ratingPeer scores, 0–100 · grey ticks: every ranked manufacturer · shaded: the middle half of each one’s modelsMeasured against models of the same size and duct type, Liberty Heating & Air Conditioning and RUSSELL split the 6 ratings 3–3.
  • Liberty Heating & Air Conditioning
  • RUSSELL
  • Other ranked manufacturers
Liberty …RUSSELL

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingLiberty Heating & Air ConditioningRUSSELL
Efficiency index44%median —49%median —
COP at 5°F45%median 2.0080%median 2.20
Capacity retention at 5°F24%median 51%43%median 57%
HSPF229% (higher)median 7.525% (higher)median 7.2
SEER242% (higher)median 15.232% (higher)median 14.3
EER258% (higher)median 11.242% (higher)median 10.6
Heating capacity at 5°F22%median 16,900 Btu/h42%median 24,200 Btu/h
Outdoor models6160
AHRI certifications4,4141,231

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardLiberty Heating & Air ConditioningRUSSELL
CEE 2025 Tier 1 (Split ASHP)19.7%12 models16.7%10 models
CEE 2026 Tier 1 (Split ASHP)14.8%9 models16.7%10 models
CEE Advanced Tier (Split ASHP)0%0 models3.3%2 models
Xcel Energy Colorado cold-climate ASHP (2025)9.8%6 models13.3%8 models
DOE Cold Climate Heat Pump Challenge0%0 models3.3%2 models
ENERGY STAR Cold Climate0%0 models21.7%13 models

Sizes and duct types offered

Models in each peer group, with the efficiency index of those models against the rest of the group.
Side by side, inside each size and duct typeShape: every model of the group · bars: each manufacturer’s middle half, median dot, 10th–90th line · 5 groups where both have models
  • Liberty Heating & Air Conditioning
  • RUSSELL
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 modelsmedian

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeLiberty Heating & Air ConditioningRUSSELL
Ducted, up to 1.5 tons4 · index 40%2 · index 27%
Ducted, 2 tons11 · index 42%7 · index 52%
Ducted, 2.5–3 tons19 · index 43%17 · index 52%
Ducted, 3.5–4.5 tons25 · index 47%26 · index 50%
Ducted, 5 tons and up2 · index 36%8 · index 70%

Cold-climate and all-around picks, size class by size class

Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.

Cold-climate picks

Best cold-climate pick per size and duct type (keeps at least 70% of its heat at 5°F). Qualifies when its capacity retention at 5°F (capacity at 5°F as a share of capacity at 47°F) is at least 70% and Capacity retention at 5°F, COP at 5°F, HSPF2 are all rated. Score = the equal-weight mean of its peer percentiles on Capacity retention at 5°F, COP at 5°F, HSPF2 (share of the other models in its peer group it beats, 0–100), all from one certified pairing: in each duct type a model is sold in, its qualifying pairing of that type with the best score; equal scores (one decimal) go to the higher heating capacity at 5°F.
Size and duct typeLiberty Heating & Air ConditioningCold-climate score, best modelRUSSELLCold-climate score, best model
Ducted, up to 1.5 tons51.2(50 is the typical model of its size class)ASZS601810A*with ducted air handler AHVE24BP1400A1 of 4 models qualify · AHRI 211178339None on this board (0 of 2 models qualify)
Ducted, 2 tons51.3(50 is the typical model of its size class)ASZS60241EA*with ducted air handler AHVE36CP1400B1 of 11 models qualify · AHRI 21438963374.7(50 is the typical model of its size class) (higher)SP18AZ24AJVCwith indoor coil TCFZ2421HEAAM and furnace S951V0403A17UHU2 of 7 models qualify · AHRI 213372369
Ducted, 2.5–3 tons69.9(50 is the typical model of its size class)ASZS60361EA*with ducted air handler CA*EA6030*4A*+MBVK20DP1X00A2 of 19 models qualify · AHRI 21438964380.6(50 is the typical model of its size class) (higher)SP18AZ36AJVCwith ducted air handler SHMVZ6021SEACA2 of 17 models qualify · AHRI 210106900
Ducted, 3.5–4.5 tons72.9(50 is the typical model of its size class)ASZS60421EA*with indoor coil CA*EA6030*4A and furnace G*VC801005C*A2 of 25 models qualify · AHRI 21438964776.3(50 is the typical model of its size class) (higher)SP18AZ48AJVCwith indoor coil TCFZ6021SEAAM and furnace S962V1005A21M4S4 of 26 models qualify · AHRI 210106968
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)None on this board (0 of 8 models qualify)

All-around best

Best all-around model per size and duct type. Score = 50% heating, the mean of its peer percentiles on COP at 5°F, Capacity retention at 5°F, HSPF2, plus 50% cooling, the mean of its peer percentiles on SEER2 and EER2 (share of the other models in its peer group it beats, 0–100). All five ratings are required; there is no minimum heat kept at 5°F. In each duct type a model is sold in, it is scored on its pairing of that type with the best score; equal scores (one decimal) go to the higher cold-climate score, then the higher heating capacity at 5°F.
Size and duct typeLiberty Heating & Air ConditioningAll-around score, best modelRUSSELLAll-around score, best model
Ducted, up to 1.5 tons41.3(50 is the typical model of its size class) (higher)ASZS601810A*with ducted air handler AHVE24BP1400A4 of 4 models have all five ratings · AHRI 21117833934.5(50 is the typical model of its size class)SP15AZ18AJ2Nwith ducted air handler SH2CZ2417STANN2 of 2 models have all five ratings · AHRI 211627516
Ducted, 2 tons68.6(50 is the typical model of its size class)ASZV902410A*with indoor coil CA*F3743*6D*+TXV and furnace G*VC800604B*A9 of 11 models have all five ratings · AHRI 21069328283.6(50 is the typical model of its size class) (higher)SP18AZ24AJVCwith indoor coil TCFZ2421HEAAM and furnace S951V0403A17UHU4 of 7 models have all five ratings · AHRI 213372369
Ducted, 2.5–3 tons68.5(50 is the typical model of its size class)ASZV903610A*with ducted air handler CA*F3743*6D*+MBVB16CP1X00A*+TX15 of 19 models have all five ratings · AHRI 21381510687.2(50 is the typical model of its size class) (higher)SP18AZ36AJVCwith indoor coil TCFZ6021SEAAM and furnace S802VA100521Z6 of 17 models have all five ratings · AHRI 210589394
Ducted, 3.5–4.5 tons68.2(50 is the typical model of its size class)GSZC704810A*with ducted air handler CAPT4961*4A*+MBVC2001**-1A17 of 25 models have all five ratings · AHRI 21194659380.3(50 is the typical model of its size class) (higher)SP18AZ48AJVCwith indoor coil TCFZ6021SEAAM and furnace S802VA100521Z9 of 26 models have all five ratings · AHRI 210589350
Ducted, 5 tons and up51.5(50 is the typical model of its size class)GPHH56041A*2 of 2 models have all five ratings · AHRI 21194600370.2(50 is the typical model of its size class) (higher)SP15AZ60AJ2Nwith indoor coil TCFZ6024STANM and furnace S97MV1005A21DHS1 of 8 models have all five ratings · AHRI 212387320

All-around board, every manufacturer

Standout model on each rating

Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.
Top model per rating by peer percentile, with its AHRI-certified value and peer group
RatingLiberty Heating & Air ConditioningRUSSELL
COP at 5°Fbeats 94% · 2.51GPHH56041A*Ducted, 5 tons and upbeats 98% · 2.60SP15AZ60AJ2NDucted, 5 tons and up
Capacity retention at 5°Fbeats 77% · 88%ASZS60361EA*Ducted, 2.5–3 tonsbeats 100% · 105%SP18AZ48AJVCDucted, 3.5–4.5 tons
HSPF2beats 66% · 8.6ASZS60421EA*Ducted, 3.5–4.5 tonsbeats 75% · 9.5RD17AZ24AJ3NDucted, 2 tons
SEER2beats 99% · 22.5ASZV902410A*Ducted, 2 tonsbeats 94% · 20.0SP18AZ24AJVCDucted, 2 tons
EER2beats 92% · 12.5GSZB404810A*Ducted, 3.5–4.5 tonsbeats 91% · 12.5SP18AZ36AJVCDucted, 2.5–3 tons
Heating capacity at 5°Fbeats 79% · 30,000 Btu/hASZS60361EA*Ducted, 2.5–3 tonsbeats 100% · 43,500 Btu/hSP18AZ36AJVCDucted, 2.5–3 tons

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