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.

Clima Smart and Endura 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, Clima Smart scores higher on 5 of the 6 ratings.

Clima Smart
Endura
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Clima Smart	Endura
Efficiency index	73% (higher)median —	63% (higher)median —
COP at 5°F	35%median 1.90	47%median 1.99
Capacity retention at 5°F	79% (higher)median 98%	73% (higher)median 77%
HSPF2	68% (higher)median 10.0	57% (higher)median 9.0
SEER2	89% (higher)median 25.0	69% (higher)median 19.0
EER2	80% (higher)median 13.8	66% (higher)median 12.0
Heating capacity at 5°F	71% (higher)median 21,100 Btu/h	69% (higher)median 36,000 Btu/h
Outdoor models	8	9
AHRI certifications	10	25

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Clima Smart	Endura
CEE 2025 Tier 1 (Split ASHP)	100%8 models	100%9 models
CEE 2026 Tier 1 (Split ASHP)	100%8 models	100%9 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	100%8 models	100%9 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	100%8 models	100%9 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 · 3 groups where both have models

Clima Smart
Endura
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	Clima Smart	Endura
Ducted, up to 1.5 tons	None	1 · index 65%
Ducted, 2 tons	None	1 · index 44%
Ducted, 2.5–3 tons	None	4 · index 63%
Ducted, 3.5–4.5 tons	None	2 · index 71%
Ducted, 5 tons and up	None	1 · index 81%
Non-ducted, up to 1.5 tons	4 · index 74%	1 · index 69%
Non-ducted, 2 tons	1 · index 56%	None
Non-ducted, 2.5–3 tons	2 · index 80%	2 · index 63%
Non-ducted, 3.5–4.5 tons	1 · index 70%	1 · index 44%

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	Clima SmartCold-climate score, best model	EnduraCold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	66.2(50 is the typical model of its size class)HBEFLM2-OD181 of 1 models qualify · AHRI 218457862
Ducted, 2 tons	No models in this size class	82.1(50 is the typical model of its size class)HBEFU-24R454Bwith ducted air handler HBEC-FC24R454B1 of 1 models qualify · AHRI 218457845
Ducted, 2.5–3 tons	No models in this size class	87.9(50 is the typical model of its size class)HBEFU-36R454Bwith ducted air handler HBEC-FC36R454B4 of 4 models qualify · AHRI 218457846
Ducted, 3.5–4.5 tons	No models in this size class	77.3(50 is the typical model of its size class)HBEFU-48R454Bwith ducted air handler HBEC-FC48R454B2 of 2 models qualify · AHRI 218457847
Ducted, 5 tons and up	No models in this size class	88.7(50 is the typical model of its size class)HBEFU-60R454Bwith ducted air handler HBEC-FC60R454B1 of 1 models qualify · AHRI 218457848
Non-ducted, up to 1.5 tons	70.9(50 is the typical model of its size class) (higher)MU-CSU18HEI2NAM0T24-3PO4 of 4 models qualify · AHRI 218044807	69.5(50 is the typical model of its size class)HBEFLM2-OD181 of 1 models qualify · AHRI 218457861
Non-ducted, 2 tons	58.0(50 is the typical model of its size class)CSU24HEI2NAK0T24with ductless indoor unit CSU24HEI2NAK0T241 of 1 models qualify · AHRI 218043761	No models in this size class
Non-ducted, 2.5–3 tons	68.0(50 is the typical model of its size class) (higher)MU-CSU27HEI2NAM0T24-4PO2 of 2 models qualify · AHRI 218044808	53.7(50 is the typical model of its size class)HBEFLM4-OD362 of 2 models qualify · AHRI 218457871
Non-ducted, 3.5–4.5 tons	48.1(50 is the typical model of its size class) (higher)MU-CSU48HEI2NAM0T24-6PO1 of 1 models qualify · AHRI 218044810	16.4(50 is the typical model of its size class)HBEFLM5-OD421 of 1 models qualify · AHRI 218457868

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	Clima SmartAll-around score, best model	EnduraAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	64.6(50 is the typical model of its size class)HBEFLM2-OD181 of 1 models have all five ratings · AHRI 218457862
Ducted, 2 tons	No models in this size class	79.5(50 is the typical model of its size class)HBEFU-24R454Bwith ducted air handler HBEC-FC24R454B1 of 1 models have all five ratings · AHRI 218457845
Ducted, 2.5–3 tons	No models in this size class	82.3(50 is the typical model of its size class)HBEFU-36R454Bwith ducted air handler HBEC-FC36R454B4 of 4 models have all five ratings · AHRI 218457846
Ducted, 3.5–4.5 tons	No models in this size class	82.3(50 is the typical model of its size class)HBEFU-48R454Bwith ducted air handler HBEC-FC48R454B2 of 2 models have all five ratings · AHRI 218457847
Ducted, 5 tons and up	No models in this size class	81.1(50 is the typical model of its size class)HBEFU-60R454Bwith ducted air handler HBEC-FC60R454B1 of 1 models have all five ratings · AHRI 218457848
Non-ducted, up to 1.5 tons	82.6(50 is the typical model of its size class) (higher)MU-CSU18HEI2NAM0T24-3PO4 of 4 models have all five ratings · AHRI 218044807	69.2(50 is the typical model of its size class)HBEFLM2-OD181 of 1 models have all five ratings · AHRI 218457861
Non-ducted, 2 tons	56.1(50 is the typical model of its size class)CSU24HEI2NAK0T24with ductless indoor unit CSU24HEI2NAK0T241 of 1 models have all five ratings · AHRI 218043761	No models in this size class
Non-ducted, 2.5–3 tons	83.1(50 is the typical model of its size class) (higher)MU-CSU27HEI2NAM0T24-4PO2 of 2 models have all five ratings · AHRI 218044808	64.2(50 is the typical model of its size class)HBEFLM3-OD272 of 2 models have all five ratings · AHRI 218457864
Non-ducted, 3.5–4.5 tons	70.2(50 is the typical model of its size class) (higher)MU-CSU48HEI2NAM0T24-6PO1 of 1 models have all five ratings · AHRI 218044810	43.7(50 is the typical model of its size class)HBEFLM5-OD421 of 1 models have all five ratings · AHRI 218457868

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	Clima Smart	Endura
COP at 5°F	beats 63% · 2.00MU-CSU18HEI2NAM0T24-3PONon-ducted, up to 1.5 tons	beats 98% · 2.42HBEFU-60R454BDucted, 5 tons and up
Capacity retention at 5°F	beats 90% · 101%CSU09HEI2NAM0T24Non-ducted, up to 1.5 tons	beats 94% · 75%HBEFU-60R454BDucted, 5 tons and up
HSPF2	beats 80% · 10.5MU-CSU27HEI2NAM0T24-4PONon-ducted, 2.5–3 tons	beats 96% · 10.5HBEFU-36R454BDucted, 2.5–3 tons
SEER2	beats 99% · 26.5MU-CSU27HEI2NAM0T24-4PONon-ducted, 2.5–3 tons	beats 95% · 19.0HBEFU-60R454BDucted, 5 tons and up
EER2	beats 97% · 14.0MU-CSU27HEI2NAM0T24-4PONon-ducted, 2.5–3 tons	beats 94% · 12.9HBEFLM4-OD36Ducted, 2.5–3 tons
Heating capacity at 5°F	beats 98% · 19,800 Btu/hMU-CSU18HEI2NAM0T24-3PONon-ducted, up to 1.5 tons	beats 93% · 18,000 Btu/hHBEFLM2-OD18Non-ducted, up to 1.5 tons

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Clima Smart vs Endura heat pumps