Liberty Heating & Air Conditioning vs RUSSELL heat pumps

Measured against models of the same size and duct type, Liberty Heating & Air Conditioning scores higher on 6 of the 6 ratings. Liberty Heating & Air Conditioning has 6 outdoor models, RUSSELL has 111 outdoor models. Liberty Heating & Air Conditioning and RUSSELL have no QMID on file and are not ranked.

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CompareData as of Oct 11, 2026updated Oct 11, 2026 · 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 scores higher on 6 of the 6 ratings.

Liberty Heating & Air Conditioning
RUSSELL
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 11, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Liberty Heating & Air Conditioning	RUSSELL
Efficiency index	58% (higher)median —	33% (higher)median —
COP at 5°F	52% (higher)median 2.00	37% (higher)median 1.82
Capacity retention at 5°F	29% (higher)median 50%	21% (higher)median 45%
HSPF2	55% (higher)median 8.2	24% (higher)median 7.2
SEER2	51% (higher)median 15.6	28% (higher)median 14.3
EER2	91% (higher)median 12.5	36% (higher)median 10.6
Heating capacity at 5°F	31% (higher)median 26,300 Btu/h	21% (higher)median 18,000 Btu/h
Outdoor models	6	111
AHRI certifications	15	2,007

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Liberty Heating & Air Conditioning	RUSSELL
CEE 2025 Tier 1 (Split ASHP)	50%3 models	10.8%12 models
CEE 2026 Tier 1 (Split ASHP)	50%3 models	9%10 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	7.2%8 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 models	11.7%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 · 2 groups where both have models

Liberty Heating & Air Conditioning
RUSSELL
All models of the group

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

Source: AHRI Directory · as of Oct 11, 2026

Models per peer group · efficiency index within the group
Size and duct type	Liberty Heating & Air Conditioning	RUSSELL
Ducted, 3.5–4.5 tons	4 · index 56%	44 · index 36%
Ducted, 5 tons and up	2 · index 63%	20 · index 33%
Ducted, up to 1.5 tons	None	2 · index 27%
Ducted, 2 tons	None	12 · index 29%
Ducted, 2.5–3 tons	None	33 · index 31%

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 type	Liberty Heating & Air ConditioningCold-climate score, best model	RUSSELLCold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	None on this board (0 of 2 models qualify)
Ducted, 2 tons	No models in this size class	70.3(50 is the typical model of its size class)RD18AY24AJVCwith indoor coil TCFY2417STANM and furnace S962V0603A17M42 of 12 models qualify · AHRI 217906632
Ducted, 2.5–3 tons	No models in this size class	78.1(50 is the typical model of its size class)RD18AY36AJVCwith indoor coil TCFY3621MTANM and furnace S801V0504A17UHS2 of 33 models qualify · AHRI 216892076
Ducted, 3.5–4.5 tons	None on this board (0 of 4 models qualify)	80.9(50 is the typical model of its size class)SP19AY48AJVCwith indoor coil TCFY4821SEAAM and furnace S802V0754A17DZ4 of 44 models qualify · AHRI 216051255
Ducted, 5 tons and up	None on this board (0 of 2 models qualify)	None on this board (0 of 20 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 type	Liberty Heating & Air ConditioningAll-around score, best model	RUSSELLAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	38.2(50 is the typical model of its size class)SP15AY18AJ2Nwith ducted air handler RF2TY2421STANS2 of 2 models have all five ratings · AHRI 216533447
Ducted, 2 tons	No models in this size class	74.3(50 is the typical model of its size class)SP19AY24AJVCwith indoor coil TCFY2421HEAAM and furnace S972V0603A17UPS12 of 12 models have all five ratings · AHRI 218728661
Ducted, 2.5–3 tons	No models in this size class	84.1(50 is the typical model of its size class)RD18AY36AJVCwith ducted air handler SH2VY3621MTACN19 of 33 models have all five ratings · AHRI 217166015
Ducted, 3.5–4.5 tons	63.9(50 is the typical model of its size class)GLZT7CA4810A*with ducted air handler AMVT60DP1300A4 of 4 models have all five ratings · AHRI 216369314	84.1(50 is the typical model of its size class) (higher)SP19AY48AJVCwith indoor coil TCFY4821SEAAM and furnace S802V0754A17UH23 of 43 models have all five ratings · AHRI 216051262
Ducted, 5 tons and up	63.0(50 is the typical model of its size class) (higher)GLZS5BA6010A*with ducted air handler AMST60DU1300A2 of 2 models have all five ratings · AHRI 216369278	56.6(50 is the typical model of its size class)SP15AY60AJ2Nwith ducted air handler SH2CY6024STANN11 of 21 models have all five ratings · AHRI 215415481

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
Rating	Liberty Heating & Air Conditioning	RUSSELL
COP at 5°F	beats 54% · 2.00GLZS4BA6010A*Ducted, 3.5–4.5 tons	beats 91% · 2.40RD16AY36AJVCDucted, 2.5–3 tons
Capacity retention at 5°F	beats 50% · 53%GLZT7CA6010A*Ducted, 5 tons and up	beats 88% · 97%SP19AY60AJVCDucted, 3.5–4.5 tons
HSPF2	beats 66% · 8.2GLZS5BA6010A*Ducted, 5 tons and up	beats 86% · 10.0SP19AY48AJVCDucted, 3.5–4.5 tons
SEER2	beats 67% · 17.2GLZT7CA4810A*Ducted, 3.5–4.5 tons	beats 98% · 21.0SP19AY36AJVCDucted, 2.5–3 tons
EER2	beats 93% · 12.5GLZS4BA6010A*Ducted, 3.5–4.5 tons	beats 96% · 13.0RD18AY36AJVCDucted, 2.5–3 tons
Heating capacity at 5°F	beats 54% · 31,000 Btu/hGLZT7CA6010A*Ducted, 5 tons and up	beats 95% · 53,000 Btu/hSP19AY60AJVCDucted, 3.5–4.5 tons

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