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KLIMAIRE vs VKIN heat pumps

Measured against models of the same size and duct type, VKIN scores higher on 4 of the 6 ratings. KLIMAIRE has 25 outdoor models, VKIN has 26 outdoor models. KLIMAIRE and VKIN 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.
KLIMAIRE and VKIN 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, VKIN scores higher on 4 of the 6 ratings.
  • KLIMAIRE
  • VKIN
  • Other ranked manufacturers
KLIMAIREVKIN

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingKLIMAIREVKIN
Efficiency index55%median —60%median —
COP at 5°F50%median 2.0057%median 2.00
Capacity retention at 5°F48%median 72%55%median 75%
HSPF260%median 10.060%median 9.8
SEER261%median 21.272%median 22.0
EER252%median 12.054%median 12.0
Heating capacity at 5°F55% (higher)median 18,900 Btu/h54% (higher)median 18,700 Btu/h
Outdoor models2526
AHRI certifications4534

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardKLIMAIREVKIN
CEE 2025 Tier 1 (Split ASHP)76%19 models96.2%25 models
CEE 2026 Tier 1 (Split ASHP)76%19 models96.2%25 models
CEE Advanced Tier (Split ASHP)0%0 models3.8%1 models
Xcel Energy Colorado cold-climate ASHP (2025)72%18 models92.3%24 models
DOE Cold Climate Heat Pump Challenge0%0 models3.8%1 models
ENERGY STAR Cold Climate0%0 models88.5%23 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 · 8 groups where both have models
  • KLIMAIRE
  • VKIN
  • All models of the group
Ducted, up to 1.5 tons1.901,783 modelsDucted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsDucted, 5 tons and up2.00321 modelsNon-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsNon-ducted, 3.5–4.5 tons2.00564 modelsNon-ducted, 5 tons and up2.0585 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 typeKLIMAIREVKIN
Ducted, up to 1.5 tons2 · index 76%1 · index 69%
Ducted, 2 tons1 · index 65%2 · index 76%
Ducted, 2.5–3 tons3 · index 77%4 · index 65%
Ducted, 3.5–4.5 tons3 · index 84%5 · index 63%
Ducted, 5 tons and up1 · index 63%None
Non-ducted, up to 1.5 tons10 · index 47%11 · index 61%
Non-ducted, 2 tons3 · index 40%3 · index 46%
Non-ducted, 2.5–3 tons7 · index 45%2 · index 58%
Non-ducted, 3.5–4.5 tons4 · index 53%2 · index 41%
Non-ducted, 5 tons and up1 · index 27%None

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 typeKLIMAIRECold-climate score, best modelVKINCold-climate score, best model
Ducted, up to 1.5 tons72.6(50 is the typical model of its size class) (higher)KMIR319-H221-42 of 2 models qualify · AHRI 21748926957.7(50 is the typical model of its size class)URHT-18FM2N41 of 1 models qualify · AHRI 218258554
Ducted, 2 tons48.6(50 is the typical model of its size class)KMIR427-H225-41 of 1 models qualify · AHRI 21748927280.9(50 is the typical model of its size class) (higher)UCHA-24HDCSN4with ducted air handler UCHA-24HDCN42 of 2 models qualify · AHRI 218385960
Ducted, 2.5–3 tons82.5(50 is the typical model of its size class) (higher)KMHR536-H224-43 of 3 models qualify · AHRI 21748929070.3(50 is the typical model of its size class)UCHA-36HDCTwith ducted air handler UCHA-36HDC4 of 4 models qualify · AHRI 218385958
Ducted, 3.5–4.5 tons82.7(50 is the typical model of its size class) (higher)KMHR648-H224-43 of 3 models qualify · AHRI 21748929376.6(50 is the typical model of its size class)UCHA-48HDCSN4with ducted air handler UCHA-48HDCN45 of 5 models qualify · AHRI 218385962
Ducted, 5 tons and upNone on this board (0 of 1 models qualify)No models in this size class
Non-ducted, up to 1.5 tons68.6(50 is the typical model of its size class)KMIP218-H225-47 of 10 models qualify · AHRI 21806707282.4(50 is the typical model of its size class) (higher)URHA-09WDCN4(O)with ductless indoor unit URHA-09WDCN4(I)10 of 11 models qualify · AHRI 216498652
Non-ducted, 2 tons41.1(50 is the typical model of its size class)KMIR427-H225-42 of 3 models qualify · AHRI 21748927148.1(50 is the typical model of its size class) (higher)URHA-24WDCN4(O)with ductless indoor unit URHA-24WDCN4(I)3 of 3 models qualify · AHRI 216498655
Non-ducted, 2.5–3 tons72.6(50 is the typical model of its size class) (higher)KMHR536-H224-45 of 7 models qualify · AHRI 21748929157.5(50 is the typical model of its size class)URHT-27FM3N42 of 2 models qualify · AHRI 218258550
Non-ducted, 3.5–4.5 tons69.9(50 is the typical model of its size class) (higher)KMHR660-H218-44 of 4 models qualify · AHRI 21748929731.2(50 is the typical model of its size class)URHT-42FM5N42 of 2 models qualify · AHRI 218258552
Non-ducted, 5 tons and upNone on this board (0 of 1 models qualify)No models in this size class

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 typeKLIMAIREAll-around score, best modelVKINAll-around score, best model
Ducted, up to 1.5 tons77.4(50 is the typical model of its size class) (higher)KMHR319-H221-42 of 2 models have all five ratings · AHRI 21748928469.0(50 is the typical model of its size class)URHT-18FM2N41 of 1 models have all five ratings · AHRI 218258554
Ducted, 2 tons64.5(50 is the typical model of its size class)KMIR427-H225-41 of 1 models have all five ratings · AHRI 21748927279.3(50 is the typical model of its size class) (higher)UCHA-24HDCTwith ducted air handler UCHA-24HDC2 of 2 models have all five ratings · AHRI 218385956
Ducted, 2.5–3 tons83.6(50 is the typical model of its size class) (higher)KMHR536-H224-43 of 3 models have all five ratings · AHRI 21748929069.9(50 is the typical model of its size class)URHT-27FM3N44 of 4 models have all five ratings · AHRI 218258555
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class) (higher)KMIR648-H224-43 of 3 models have all five ratings · AHRI 21748927868.3(50 is the typical model of its size class)UCHA-48HDCTwith ducted air handler UCHA-48HDC5 of 5 models have all five ratings · AHRI 218385957
Ducted, 5 tons and up62.5(50 is the typical model of its size class)KMIR660-H218-41 of 1 models have all five ratings · AHRI 217489281No models in this size class
Non-ducted, up to 1.5 tons72.2(50 is the typical model of its size class)KMIP218-H225-410 of 10 models have all five ratings · AHRI 21806707283.9(50 is the typical model of its size class) (higher)URHA-09WDCN4(O)with ductless indoor unit URHA-09WDCN4(I)11 of 11 models have all five ratings · AHRI 216498652
Non-ducted, 2 tons56.7(50 is the typical model of its size class)KMIR427-H225-43 of 3 models have all five ratings · AHRI 21748927158.3(50 is the typical model of its size class) (higher)URHA-24WDCN4(O)with ductless indoor unit URHA-24WDCN4(I)3 of 3 models have all five ratings · AHRI 216498655
Non-ducted, 2.5–3 tons66.3(50 is the typical model of its size class) (higher)KMHR536-H224-47 of 7 models have all five ratings · AHRI 21748928965.1(50 is the typical model of its size class)URHT-27FM3N42 of 2 models have all five ratings · AHRI 218258550
Non-ducted, 3.5–4.5 tons62.6(50 is the typical model of its size class) (higher)KMHR660-H218-44 of 4 models have all five ratings · AHRI 21748929542.4(50 is the typical model of its size class)URHT-42FM5N42 of 2 models have all five ratings · AHRI 218258552
Non-ducted, 5 tons and up32.5(50 is the typical model of its size class)KMIR660-H218-41 of 1 models have all five ratings · AHRI 217489280No models in this size class

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
RatingKLIMAIREVKIN
COP at 5°Fbeats 89% · 2.25KMIR319-H221-4Non-ducted, up to 1.5 tonsbeats 98% · 2.49URHA-18WDCNX-ONon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 95% · 104%KMHR536-H224-4Non-ducted, 2.5–3 tonsbeats 92% · 100%UCHA-24HDCSN4Ducted, 2 tons
HSPF2beats 99% · 11.0KMHR648-H224-4Ducted, 3.5–4.5 tonsbeats 85% · 11.0URHA-09WDCN4(O)Non-ducted, up to 1.5 tons
SEER2beats 96% · 20.4KMIR648-H224-4Ducted, 3.5–4.5 tonsbeats 99% · 22.0URHT-27FM3N4Ducted, 2.5–3 tons
EER2beats 85% · 13.0KMHR319-H221-4Ducted, up to 1.5 tonsbeats 98% · 14.0UCHA-24HDCTDucted, 2 tons
Heating capacity at 5°Fbeats 94% · 37,400 Btu/hKMHR536-H224-4Non-ducted, 2.5–3 tonsbeats 93% · 18,000 Btu/hURHA-18WDCN4(O)Non-ducted, up to 1.5 tons

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