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Bosch vs Kepler heat pumps

Measured against models of the same size and duct type, Bosch scores higher on 4 of the 6 ratings. Bosch has 50 outdoor models, Kepler has 51 outdoor models. Kepler has no QMID on file and is not ranked. They share hardware: 36 equipment families appear under both names.

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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.
Bosch and Kepler 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, Bosch scores higher on 4 of the 6 ratings.
  • Bosch
  • Kepler
  • Other ranked manufacturers
BoschKepler

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingBoschKepler
Efficiency index65% (higher)median — · 4th ranked60% (higher)median —
COP at 5°F55% (higher)median 2.00 · 12th ranked50% (higher)median 1.91
Capacity retention at 5°F60% (higher)median 73% · 8th ranked59% (higher)median 78%
HSPF269%median 9.3 · 4th ranked70%median 9.5
SEER270% (higher)median 19.2 · 2nd ranked66% (higher)median 19.5
EER258% (higher)median 11.7 · 8th ranked53% (higher)median 11.7
Heating capacity at 5°F56%median 20,000 Btu/h · 12th ranked59%median 20,200 Btu/h
Outdoor models5051
AHRI certifications1,560145

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardBoschKepler
CEE 2025 Tier 1 (Split ASHP)76%38 models70.6%36 models
CEE 2026 Tier 1 (Split ASHP)76%38 models66.7%34 models
CEE Advanced Tier (Split ASHP)2%1 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)64%32 models56.9%29 models
DOE Cold Climate Heat Pump Challenge2%1 models0%0 models
ENERGY STAR Cold Climate30%15 models58.8%30 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
  • Bosch
  • Kepler
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 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 typeBoschKepler
Ducted, up to 1.5 tons11 · index 65%11 · index 61%
Ducted, 2 tons9 · index 72%4 · index 66%
Ducted, 2.5–3 tons12 · index 58%15 · index 53%
Ducted, 3.5–4.5 tons7 · index 68%10 · index 55%
Ducted, 5 tons and up5 · index 60%None
Non-ducted, up to 1.5 tons11 · index 68%15 · index 62%
Non-ducted, 2 tons2 · index 81%3 · index 63%
Non-ducted, 2.5–3 tons10 · index 61%9 · index 67%
Non-ducted, 3.5–4.5 tons4 · index 58%4 · index 57%

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 typeBoschCold-climate score, best modelKeplerCold-climate score, best model
Ducted, up to 1.5 tons75.2(50 is the typical model of its size class) (higher)BMS500-AAS009-1CSXHBwith ducted air handler BMS500-AAU009-1AHDXB10 of 11 models qualify · AHRI 20401446774.9(50 is the typical model of its size class)ODUMOX330-09HFN1MY5Wwith ducted air handler IDUMTIU-09HWFN1-M8 of 10 models qualify · AHRI 214377767
Ducted, 2 tons82.3(50 is the typical model of its size class) (higher)BMS500-AAS024-1CSXHBwith ducted air handler BMS500-AAU024-1AHDXB8 of 8 models qualify · AHRI 20401447080.3(50 is the typical model of its size class)ODUMOD33-24HFN1-MT0Wwith ducted air handler IDUMTIU-24HWFN1-M5 of 5 models qualify · AHRI 214610367
Ducted, 2.5–3 tons89.0(50 is the typical model of its size class) (higher)BOVD-36HDN1-M20Gwith indoor coil D(A,C,E)36C44+TDR and furnace BGH96M100C5B5 of 12 models qualify · AHRI 21537543880.4(50 is the typical model of its size class)ODUM3OK-27HFN1-M9 of 15 models qualify · AHRI 214377780
Ducted, 3.5–4.5 tons88.1(50 is the typical model of its size class) (higher)BOVA-60HDN1-M20Gwith ducted air handler L(E,G)M48G45 of 8 models qualify · AHRI 21267569074.9(50 is the typical model of its size class)ODUM5OG-48HFN1-M-[X]6 of 10 models qualify · AHRI 214377789
Ducted, 5 tons and up70.2(50 is the typical model of its size class)BRB-60HWD1N1-M19Also listed as BRBA-60HWD1N1-M182 of 5 models qualify · AHRI 202680590No models in this size class
Non-ducted, up to 1.5 tons89.3(50 is the typical model of its size class)BMS500-AAS009-1CSXRCwith ductless indoor unit BMS500-AAU006-1AHWXC7 of 11 models qualify · AHRI 20775999389.3(50 is the typical model of its size class)ODUMOX230-09HFN1MW5Wwith ductless indoor unit IDUMSEPB-06HRFN1MY5W9 of 15 models qualify · AHRI 213608172
Non-ducted, 2 tons86.1(50 is the typical model of its size class)BMS500-AAS024-1CSXHCwith ductless indoor unit BMS500-AAU024-1AHCXC2 of 2 models qualify · AHRI 20776001886.1(50 is the typical model of its size class)ODUMOD30-24HFN1MU0Wwith ductless indoor unit IDUMCD1-24HRFN1-MT0W(GA)2 of 3 models qualify · AHRI 214377774
Non-ducted, 2.5–3 tons79.3(50 is the typical model of its size class)BMS500-AAM036-1CSXHC3 of 10 models qualify · AHRI 20776003990.9(50 is the typical model of its size class) (higher)ODUM4OX630-36HFN1-M1X5 of 9 models qualify · AHRI 214377785
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class)BMS500-AAM048-1CSXHC1 of 4 models qualify · AHRI 20776004276.2(50 is the typical model of its size class)ODUM5OG-48HFN1-M-[X]2 of 4 models qualify · AHRI 214377788

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 typeBoschAll-around score, best modelKeplerAll-around score, best model
Ducted, up to 1.5 tons85.2(50 is the typical model of its size class)BMS500-AAS009-1CSXHCwith ducted air handler BMS500-AAU009-1AHDXB11 of 11 models have all five ratings · AHRI 20776000185.2(50 is the typical model of its size class)ODUMOX330-09HFN1MY5Wwith ducted air handler IDUMTIU-09HWFN1-M10 of 10 models have all five ratings · AHRI 214377767
Ducted, 2 tons87.9(50 is the typical model of its size class) (higher)BOVA-36HDN1-M20Gwith ducted air handler AE(D,N,U)+CM36B34+TDR9 of 9 models have all five ratings · AHRI 21388583183.8(50 is the typical model of its size class)ODUMOD33-24HFN1-MT0Wwith ducted air handler IDUMTIU-24HWFN1-M5 of 5 models have all five ratings · AHRI 214610367
Ducted, 2.5–3 tons85.5(50 is the typical model of its size class) (higher)BOVD-36HDN1-M20Gwith indoor coil D(A,C,E)36C44+TDR and furnace BGH96M100C5B11 of 12 models have all five ratings · AHRI 21537543883.7(50 is the typical model of its size class)ODUM4OX630-36HFN1-M1X15 of 15 models have all five ratings · AHRI 214377786
Ducted, 3.5–4.5 tons88.4(50 is the typical model of its size class) (higher)BOVA-60HDN1-M20Gwith ducted air handler L(E,G)M48G46 of 7 models have all five ratings · AHRI 21267569082.0(50 is the typical model of its size class)ODUM5OG-48HFN1-M-[X]9 of 9 models have all five ratings · AHRI 214377789
Ducted, 5 tons and up75.1(50 is the typical model of its size class) (higher)BRB-60HWD1N1-M19Also listed as BRBA-60HWD1N1-M185 of 5 models have all five ratings · AHRI 20268059042.8(50 is the typical model of its size class)AZPNS/60RODwith ducted air handler AZPN/60WAH1 of 1 models have all five ratings · AHRI 213062304
Non-ducted, up to 1.5 tons92.0(50 is the typical model of its size class)BMS500-AAS009-1CSXRCwith ductless indoor unit BMS500-AAU006-1AHWXC11 of 11 models have all five ratings · AHRI 20775999392.0(50 is the typical model of its size class)ODUMOX230-09HFN1MW5Wwith ductless indoor unit IDUMSEPB-06HRFN1MY5W15 of 15 models have all five ratings · AHRI 213608172
Non-ducted, 2 tons84.3(50 is the typical model of its size class)BMS500-AAS024-1CSXHCwith ductless indoor unit BMS500-AAU024-1AHWXC2 of 2 models have all five ratings · AHRI 20775999784.3(50 is the typical model of its size class)ODUMOD30-24HFN1MU0Wwith ductless indoor unit IDUMSEPD-24HRFN1MU0W3 of 3 models have all five ratings · AHRI 213608176
Non-ducted, 2.5–3 tons82.8(50 is the typical model of its size class)BMS500-AAM036-1CSXHC8 of 10 models have all five ratings · AHRI 20776003986.4(50 is the typical model of its size class) (higher)ODUM4OX630-36HFN1-M1X9 of 9 models have all five ratings · AHRI 214377785
Non-ducted, 3.5–4.5 tons77.9(50 is the typical model of its size class)BMS500-AAM048-1CSXHC3 of 4 models have all five ratings · AHRI 20776004277.9(50 is the typical model of its size class)ODUM5OG-48HFN1-M-[X]4 of 4 models have all five ratings · AHRI 214377788

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
RatingBoschKepler
COP at 5°Fbeats 99% · 3.03BOVD-36HDN1-M20GDucted, 2.5–3 tonsbeats 98% · 2.45ODUMOX230-12HFN1-MV5WNon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 100% · 126%BOVD-36HDN1-M20GDucted, 2.5–3 tonsbeats 97% · 103%ODUM3OK-27HFN1-MNon-ducted, 2.5–3 tons
HSPF2beats 98% · 13.6BMS500-AAS009-1CSXRCNon-ducted, up to 1.5 tonsbeats 98% · 13.6ODUMOX230-09HFN1MW5WNon-ducted, up to 1.5 tons
SEER2beats 99% · 24.6BMS500-AAM027-1CSXRCNon-ducted, 2.5–3 tonsbeats 99% · 24.6ODUM3OJ-27HFN1-MNon-ducted, 2.5–3 tons
EER2beats 98% · 16.2BMS500-AAS009-1CSXHCNon-ducted, up to 1.5 tonsbeats 98% · 16.2ODUMOX330-09HFN1MY5WNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 96% · 20,000 Btu/hBMS500-AAM018-1CSXHCNon-ducted, up to 1.5 tonsbeats 96% · 20,000 Btu/hODUM2OI-18HFN1-MNon-ducted, up to 1.5 tons

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