CARRIER CORPORATION vs KLIMAIRE heat pumps

Measured against models of the same size and duct type, KLIMAIRE scores higher on 5 of the 6 ratings. CARRIER CORPORATION has 8 outdoor models, KLIMAIRE has 25 outdoor models. CARRIER CORPORATION and KLIMAIRE 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.

CARRIER CORPORATION and KLIMAIRE 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, KLIMAIRE scores higher on 5 of the 6 ratings.

CARRIER CORPORATION
KLIMAIRE
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	CARRIER CORPORATION	KLIMAIRE
Efficiency index	19%median —	55%median —
COP at 5°F	3%median 1.47	50%median 2.00
Capacity retention at 5°F	3%median 34%	48%median 72%
HSPF2	10%median 6.7	60%median 10.0
SEER2	9%median 13.4	61%median 21.2
EER2	58% (higher)median 11.5	52% (higher)median 12.0
Heating capacity at 5°F	5%median 14,450 Btu/h	55%median 18,900 Btu/h
Outdoor models	8	25
AHRI certifications	8	45

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	CARRIER CORPORATION	KLIMAIRE
CEE 2025 Tier 1 (Split ASHP)	0%0 models	76%19 models
CEE 2026 Tier 1 (Split ASHP)	0%0 models	76%19 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	72%18 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 models	0%0 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

CARRIER CORPORATION
KLIMAIRE
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	CARRIER CORPORATION	KLIMAIRE
Ducted, 2.5–3 tons	4 · index 17%	3 · index 77%
Ducted, 5 tons and up	4 · index 21%	1 · index 63%
Ducted, up to 1.5 tons	None	2 · index 76%
Ducted, 2 tons	None	1 · index 65%
Ducted, 3.5–4.5 tons	None	3 · index 84%
Non-ducted, up to 1.5 tons	None	10 · index 47%
Non-ducted, 2 tons	None	3 · index 40%
Non-ducted, 2.5–3 tons	None	7 · index 45%
Non-ducted, 3.5–4.5 tons	None	4 · index 53%
Non-ducted, 5 tons and up	None	1 · index 27%

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	CARRIER CORPORATIONCold-climate score, best model	KLIMAIRECold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	72.6(50 is the typical model of its size class)KMIR319-H221-42 of 2 models qualify · AHRI 217489269
Ducted, 2 tons	No models in this size class	48.6(50 is the typical model of its size class)KMIR427-H225-41 of 1 models qualify · AHRI 217489272
Ducted, 2.5–3 tons	None on this board (0 of 4 models qualify)	82.5(50 is the typical model of its size class)KMHR536-H224-43 of 3 models qualify · AHRI 217489290
Ducted, 3.5–4.5 tons	No models in this size class	82.7(50 is the typical model of its size class)KMHR648-H224-43 of 3 models qualify · AHRI 217489293
Ducted, 5 tons and up	None on this board (0 of 4 models qualify)	None on this board (0 of 1 models qualify)
Non-ducted, up to 1.5 tons	No models in this size class	68.6(50 is the typical model of its size class)KMIP218-H225-47 of 10 models qualify · AHRI 218067072
Non-ducted, 2 tons	No models in this size class	41.1(50 is the typical model of its size class)KMIR427-H225-42 of 3 models qualify · AHRI 217489271
Non-ducted, 2.5–3 tons	No models in this size class	72.6(50 is the typical model of its size class)KMHR536-H224-45 of 7 models qualify · AHRI 217489291
Non-ducted, 3.5–4.5 tons	No models in this size class	69.9(50 is the typical model of its size class)KMHR660-H218-44 of 4 models qualify · AHRI 217489297
Non-ducted, 5 tons and up	No models in this size class	None on this board (0 of 1 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	CARRIER CORPORATIONAll-around score, best model	KLIMAIREAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	77.4(50 is the typical model of its size class)KMHR319-H221-42 of 2 models have all five ratings · AHRI 217489284
Ducted, 2 tons	No models in this size class	64.5(50 is the typical model of its size class)KMIR427-H225-41 of 1 models have all five ratings · AHRI 217489272
Ducted, 2.5–3 tons	17.3(50 is the typical model of its size class)50FEQ043****1 of 4 models have all five ratings · AHRI 216574944	83.6(50 is the typical model of its size class) (higher)KMHR536-H224-43 of 3 models have all five ratings · AHRI 217489290
Ducted, 3.5–4.5 tons	No models in this size class	85.1(50 is the typical model of its size class)KMIR648-H224-43 of 3 models have all five ratings · AHRI 217489278
Ducted, 5 tons and up	21.3(50 is the typical model of its size class)50FEQ063****1 of 4 models have all five ratings · AHRI 216574945	62.5(50 is the typical model of its size class) (higher)KMIR660-H218-41 of 1 models have all five ratings · AHRI 217489281
Non-ducted, up to 1.5 tons	No models in this size class	72.2(50 is the typical model of its size class)KMIP218-H225-410 of 10 models have all five ratings · AHRI 218067072
Non-ducted, 2 tons	No models in this size class	56.7(50 is the typical model of its size class)KMIR427-H225-43 of 3 models have all five ratings · AHRI 217489271
Non-ducted, 2.5–3 tons	No models in this size class	66.3(50 is the typical model of its size class)KMHR536-H224-47 of 7 models have all five ratings · AHRI 217489289
Non-ducted, 3.5–4.5 tons	No models in this size class	62.6(50 is the typical model of its size class)KMHR660-H218-44 of 4 models have all five ratings · AHRI 217489295
Non-ducted, 5 tons and up	No models in this size class	32.5(50 is the typical model of its size class)KMIR660-H218-41 of 1 models have all five ratings · AHRI 217489280

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	CARRIER CORPORATION	KLIMAIRE
COP at 5°F	beats 5% · 1.6050FEQ043****Ducted, 2.5–3 tons	beats 89% · 2.25KMIR319-H221-4Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 5% · 39%50FEQ043****Ducted, 2.5–3 tons	beats 95% · 104%KMHR536-H224-4Non-ducted, 2.5–3 tons
HSPF2	beats 10% · 6.750FEQ061***Also listed as 50FEQ06**5, 50FEQ06***6Ducted, 5 tons and up	beats 99% · 11.0KMHR648-H224-4Ducted, 3.5–4.5 tons
SEER2	beats 9% · 13.450FEQ061***Also listed as 50FEQ06**5, 50FEQ06***6Ducted, 5 tons and up	beats 96% · 20.4KMIR648-H224-4Ducted, 3.5–4.5 tons
EER2	beats 60% · 11.550FEQ061***Also listed as 50FEQ06**5, 50FEQ06***6Ducted, 5 tons and up	beats 85% · 13.0KMHR319-H221-4Ducted, up to 1.5 tons
Heating capacity at 5°F	beats 8% · 13,400 Btu/h50FEQ043****Ducted, 2.5–3 tons	beats 94% · 37,400 Btu/hKMHR536-H224-4Non-ducted, 2.5–3 tons

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