GCHV vs KeplerX heat pumps

Measured against models of the same size and duct type, KeplerX scores higher on 4 of the 6 ratings. GCHV has 20 outdoor models, KeplerX has 20 outdoor models. GCHV and KeplerX have no QMID on file and are not ranked.

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CompareData as of Oct 9, 2026updated Oct 10, 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.

GCHV and KeplerX 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, KeplerX scores higher on 4 of the 6 ratings.

GCHV
KeplerX
Other ranked manufacturers

Source: AHRI Directory, NEEP · as of Oct 9, 2026

Average peer percentile, raw median and rank among ranked manufacturers
Rating	GCHV	KeplerX
Efficiency index	38%median —	42%median —
COP at 5°F	39% (higher)median 1.84	34% (higher)median 1.80
Capacity retention at 5°F	37%median 70%	41%median 60%
HSPF2	28%median 7.5	52%median 8.5
SEER2	30%median 14.3	58%median 17.4
EER2	51% (higher)median 11.7	26% (higher)median 10.5
Heating capacity at 5°F	45%median 11,100 Btu/h	46%median 23,200 Btu/h
Outdoor models	20	20
AHRI certifications	48	20

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	GCHV	KeplerX
CEE 2025 Tier 1 (Split ASHP)	20%4 models	35%7 models
CEE 2026 Tier 1 (Split ASHP)	20%4 models	35%7 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	20%4 models	25%5 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	10%2 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 · 4 groups where both have models

GCHV
KeplerX
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 9, 2026

Models per peer group · efficiency index within the group
Size and duct type	GCHV	KeplerX
Ducted, up to 1.5 tons	6 · index 14%	2 · index 34%
Ducted, 2 tons	5 · index 57%	4 · index 50%
Ducted, 2.5–3 tons	4 · index —	6 · index 39%
Ducted, 3.5–4.5 tons	5 · index 59%	8 · index 43%

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	GCHVCold-climate score, best model	KeplerXCold-climate score, best model
Ducted, up to 1.5 tons	8.8(50 is the typical model of its size class)CPT-DD09AGR4-VTA1 of 6 models qualify · AHRI 218724431	None on this board (0 of 2 models qualify)
Ducted, 2 tons	67.2(50 is the typical model of its size class)COT-D36HNR8-EA01(J0)with ducted air handler CAH-D24HNR8-FMC(J0)Also listed as COT-D24HNR8-EA01(J0)2 of 5 models qualify · AHRI 215223218	70.4(50 is the typical model of its size class) (higher)K18HVH24WD2R2 of 4 models qualify · AHRI 217894015
Ducted, 2.5–3 tons	None on this board (0 of 4 models qualify)	43.5(50 is the typical model of its size class)K18HVH36WD2R1 of 6 models qualify · AHRI 217894016
Ducted, 3.5–4.5 tons	64.7(50 is the typical model of its size class) (higher)COT-D60HNR8-GA01(J0)with ducted air handler CAH-D60HNR8-FMD(J0)Also listed as COT-D48HNR8-GA01(J0)2 of 5 models qualify · AHRI 215223221	60.3(50 is the typical model of its size class)K18HVH48WD2R2 of 8 models qualify · AHRI 217894017

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	GCHVAll-around score, best model	KeplerXAll-around score, best model
Ducted, up to 1.5 tons	18.3(50 is the typical model of its size class)CPT-DD12AGR4-VTA4 of 6 models have all five ratings · AHRI 217175307	38.9(50 is the typical model of its size class) (higher)K18HVH18WD2UN3with ducted air handler K18HVH18WD2HN32 of 2 models have all five ratings · AHRI 217894009
Ducted, 2 tons	79.6(50 is the typical model of its size class) (higher)COT-D36HNR8-EA01(J0)with ducted air handler CAH-D24HNR8-FMC(J0)Also listed as COT-D24HNR8-EA01(J0)3 of 5 models have all five ratings · AHRI 215223218	76.9(50 is the typical model of its size class)K20HVH24WD2VN3with ducted air handler K20HVH24WD2HN34 of 4 models have all five ratings · AHRI 218043800
Ducted, 2.5–3 tons	None on this board (0 of 4 models have all five ratings)	54.1(50 is the typical model of its size class)K20HVH36WD2VN3with ducted air handler K20HVH36WD2HN36 of 6 models have all five ratings · AHRI 218043801
Ducted, 3.5–4.5 tons	64.4(50 is the typical model of its size class)COT-D60HNR8-GA01(J0)with ducted air handler CAH-D48HNR8-FMD(J0)2 of 5 models have all five ratings · AHRI 215223220	65.5(50 is the typical model of its size class) (higher)K18HVH48WD2R8 of 8 models have all five ratings · AHRI 217894017

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	GCHV	KeplerX
COP at 5°F	beats 69% · 2.10COT-D60HNR8-GA01(J0)Ducted, 3.5–4.5 tons	beats 90% · 2.35K20HVH48WD2VN3Ducted, 3.5–4.5 tons
Capacity retention at 5°F	beats 66% · 83%COT-D36HNR8-EA01(J0)Also listed as COT-D24HNR8-EA01(J0)Ducted, 2 tons	beats 97% · 103%K18HVH24WD2RDucted, 2 tons
HSPF2	beats 69% · 9.0COT-D60HNR8-GA01(J0)Ducted, 3.5–4.5 tons	beats 69% · 9.0K18HVH48WD2RDucted, 3.5–4.5 tons
SEER2	beats 87% · 20.0COT-D36HNR8-EA01(J0)Also listed as COT-D24HNR8-EA01(J0)Ducted, 2 tons	beats 86% · 19.3K20HVH36WD2VN3Ducted, 2.5–3 tons
EER2	beats 93% · 13.3COT-D36HNR8-EA01(J0)Also listed as COT-D24HNR8-EA01(J0)Ducted, 2 tons	beats 81% · 12.5K20HVH24WD2VN3Ducted, 2 tons
Heating capacity at 5°F	beats 74% · 42,500 Btu/hCOT-D60HNR8-GA01(J0)Also listed as COT-D48HNR8-GA01(J0)Ducted, 3.5–4.5 tons	beats 97% · 25,800 Btu/hK18HVH24WD2RDucted, 2 tons

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