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.

KANIONco and MRCOOL 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, MRCOOL scores higher on 5 of the 6 ratings.

KANIONco
MRCOOL
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	KANIONco	MRCOOL
Efficiency index	46%median —	54%median — · 15th ranked
COP at 5°F	49%median 1.92	49%median 1.94 · 18th ranked
Capacity retention at 5°F	37%median 66%	41%median 64% · 24th ranked
HSPF2	45%median 8.8	51%median 8.6 · 15th ranked
SEER2	48%median 19.0	50%median 16.6 · 12th ranked
EER2	38%median 10.3	56%median 11.7 · 12th ranked
Heating capacity at 5°F	37%median 11,600 Btu/h	43%median 17,800 Btu/h · 21st ranked
Outdoor models	91	111
AHRI certifications	107	361

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	KANIONco	MRCOOL
CEE 2025 Tier 1 (Split ASHP)	57.1%52 models	46.8%52 models
CEE 2026 Tier 1 (Split ASHP)	52.7%48 models	43.2%48 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	33%30 models	25.2%28 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	17.6%16 models	22.5%25 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 · 9 groups where both have models

KANIONco
MRCOOL
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	KANIONco	MRCOOL
Ducted, up to 1.5 tons	5 · index 64%	8 · index 55%
Ducted, 2 tons	1 · index 80%	13 · index 57%
Ducted, 2.5–3 tons	7 · index 59%	24 · index 55%
Ducted, 3.5–4.5 tons	4 · index 57%	27 · index 55%
Ducted, 5 tons and up	1 · index 57%	4 · index 41%
Non-ducted, up to 1.5 tons	53 · index 42%	23 · index 56%
Non-ducted, 2 tons	12 · index 38%	7 · index 56%
Non-ducted, 2.5–3 tons	14 · index 47%	10 · index 45%
Non-ducted, 3.5–4.5 tons	2 · index 48%	2 · index 49%

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	KANIONcoCold-climate score, best model	MRCOOLCold-climate score, best model
Ducted, up to 1.5 tons	74.9(50 is the typical model of its size class) (higher)KD-09IR410AHSODUwith ducted air handler KD-09IR410AHSIDU5 of 5 models qualify · AHRI 212615045	73.5(50 is the typical model of its size class)DIYH-18-HP-C-230C25with ducted air handler DIYH-18-HP-MUAH-230C252 of 8 models qualify · AHRI 210295926
Ducted, 2 tons	79.4(50 is the typical model of its size class) (higher)KD-24IR410AHSODUwith ducted air handler KD-24IR410AHSIDU1 of 1 models qualify · AHRI 212615048	69.5(50 is the typical model of its size class)CENTRAL-24-HP-C-230A00with ducted air handler CENTRAL-24-HP-MUAH230A005 of 11 models qualify · AHRI 211497151
Ducted, 2.5–3 tons	57.4(50 is the typical model of its size class)KWSMO-30R410AIHMVAlso listed as KWSMO-27R410AIHH2 of 7 models qualify · AHRI 207691850	74.8(50 is the typical model of its size class) (higher)CENTRAL-36-HP-C-230A00with ducted air handler CENTRAL-36-HP-MUAH230A006 of 26 models qualify · AHRI 210279122
Ducted, 3.5–4.5 tons	None on this board (0 of 4 models qualify)	77.1(50 is the typical model of its size class)CENTRAL-60-HP-C-230A00with ducted air handler CENTRAL-60-HP-MUAH230A006 of 27 models qualify · AHRI 210279124
Ducted, 5 tons and up	None on this board (0 of 1 models qualify)	None on this board (0 of 4 models qualify)
Non-ducted, up to 1.5 tons	89.3(50 is the typical model of its size class) (higher)KWSM-06IR410AHS26.5ODUwith ductless indoor unit KWSM-06IR410AHS26.5IDU22 of 53 models qualify · AHRI 213160460	86.0(50 is the typical model of its size class)O-ES-09-HP-C-230Bwith ductless indoor unit O-09-HP-WMAH-230B8 of 23 models qualify · AHRI 208552810
Non-ducted, 2 tons	84.5(50 is the typical model of its size class)KWSM-24IR410AHS21.5ODUwith ductless indoor unit KWSM-24IR410AHS21.5IDU1 of 12 models qualify · AHRI 213160464	84.5(50 is the typical model of its size class)O-HH-24-HP-C-230Awith ductless indoor unit O-24-HP-WMAH-230BAlso listed as O-HH-24-HP-C-230B3 of 7 models qualify · AHRI 207339164
Non-ducted, 2.5–3 tons	49.3(50 is the typical model of its size class)KWSMO-30R410AIHMVAlso listed as KWSMO-27R410AIHH2 of 14 models qualify · AHRI 207691849	53.7(50 is the typical model of its size class) (higher)DIY-MULTI3-27HP230C1 of 10 models qualify · AHRI 207339195
Non-ducted, 3.5–4.5 tons	None on this board (0 of 2 models qualify)	None on this board (0 of 2 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	KANIONcoAll-around score, best model	MRCOOLAll-around score, best model
Ducted, up to 1.5 tons	85.2(50 is the typical model of its size class) (higher)KD-09IR410AHSODUwith ducted air handler KD-09IR410AHSIDU5 of 5 models have all five ratings · AHRI 212615045	59.4(50 is the typical model of its size class)MULTI2-18HP230B4 of 8 models have all five ratings · AHRI 208552830
Ducted, 2 tons	80.1(50 is the typical model of its size class) (higher)KD-24IR410AHSODUwith ducted air handler KD-24IR410AHSIDU1 of 1 models have all five ratings · AHRI 212615048	68.2(50 is the typical model of its size class)DIYH-24-HP-C-230C25with ducted air handler DIYH-24-HP-MUAH-230C2510 of 13 models have all five ratings · AHRI 210288098
Ducted, 2.5–3 tons	71.5(50 is the typical model of its size class)KWSMO-30R410AIHMVAlso listed as KWSMO-27R410AIHH5 of 7 models have all five ratings · AHRI 207691850	75.4(50 is the typical model of its size class) (higher)MULTI3-27HP230B14 of 24 models have all five ratings · AHRI 208552953
Ducted, 3.5–4.5 tons	63.5(50 is the typical model of its size class)KWSMO-48R410AIHMVAlso listed as KWSMO-48R410AIHH3 of 4 models have all five ratings · AHRI 207691853	69.0(50 is the typical model of its size class) (higher)MHP17048A-*Awith indoor coil MCHP51CNPA+TDR+TXV and furnace MGM80SE090C5A16 of 27 models have all five ratings · AHRI 211737253
Ducted, 5 tons and up	57.1(50 is the typical model of its size class)KD-60IR410AHSODUwith ducted air handler KD-60IR410AHSIDU1 of 1 models have all five ratings · AHRI 212615044	62.6(50 is the typical model of its size class) (higher)MHP17060A-**Awith indoor coil MCVP60CNPA+TDR and furnace MGM80SE090C5A2 of 4 models have all five ratings · AHRI 212619860
Non-ducted, up to 1.5 tons	92.0(50 is the typical model of its size class) (higher)KWSM-06IR410AHS26.5ODUwith ductless indoor unit KWSM-06IR410AHS26.5IDU48 of 53 models have all five ratings · AHRI 213160460	88.4(50 is the typical model of its size class)O-ES-09-HP-C-230Bwith ductless indoor unit O-09-HP-WMAH-230B23 of 23 models have all five ratings · AHRI 208552810
Non-ducted, 2 tons	84.3(50 is the typical model of its size class)KWSM-24IR410AHS21.5ODUwith ductless indoor unit KWSM-24IR410AHS21.5IDU11 of 12 models have all five ratings · AHRI 213160464	84.3(50 is the typical model of its size class)O-HH-24-HP-C-230Awith ductless indoor unit O-24-HP-WMAH-230BAlso listed as O-HH-24-HP-C-230B7 of 7 models have all five ratings · AHRI 207339164
Non-ducted, 2.5–3 tons	66.7(50 is the typical model of its size class)KWSMO-30R410AIHMVAlso listed as KWSMO-27R410AIHH11 of 14 models have all five ratings · AHRI 207691849	78.2(50 is the typical model of its size class) (higher)MULTI3-27HP230B7 of 10 models have all five ratings · AHRI 208552834
Non-ducted, 3.5–4.5 tons	48.3(50 is the typical model of its size class)KWSMO-48R410AIHMVAlso listed as KWSMO-48R410AIHH2 of 2 models have all five ratings · AHRI 207691852	56.1(50 is the typical model of its size class) (higher)MULTI5-48HP230B2 of 2 models have all five ratings · AHRI 208552838

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	KANIONco	MRCOOL
COP at 5°F	beats 98% · 2.27KWSMO-27IR410AHSPNon-ducted, 2 tons	beats 97% · 2.39O-ES-12-HP-C-230BNon-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 93% · 108%KD-09IR410AHSODUDucted, up to 1.5 tons	beats 97% · 98%MDPH180484Ducted, 3.5–4.5 tons
HSPF2	beats 98% · 13.6KWSM-06IR410AHS26.5ODUNon-ducted, up to 1.5 tons	beats 98% · 9.8DIY-MULTI5-48HP230CDucted, 3.5–4.5 tons
SEER2	beats 98% · 28.1KWSM-09IR410AHS28.1ODUNon-ducted, up to 1.5 tons	beats 99% · 24.6MULTI3-27HP230BNon-ducted, 2.5–3 tons
EER2	beats 98% · 16.2KWSM-09IR410AHS28.1ODUNon-ducted, up to 1.5 tons	beats 99% · 14.0MHP17024A-**ADucted, 2 tons
Heating capacity at 5°F	beats 93% · 27,000 Btu/hKD-24IR410AHSODUDucted, 2 tons	beats 99% · 54,356 Btu/hCENTRAL-60-HP-C-230A00Ducted, 3.5–4.5 tons

More comparisons

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KANIONco vs MRCOOL heat pumps