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.

ROVSUN and TGM 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, TGM scores higher on 6 of the 6 ratings.

ROVSUN
TGM
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	ROVSUN	TGM
Efficiency index	32%median —	52%median —
COP at 5°F	22%median 1.80	43%median 1.83
Capacity retention at 5°F	34%median 66%	47%median 70%
HSPF2	15%median 8.0	46%median 8.5
SEER2	30%median 19.0	47%median 16.6
EER2	21%median 10.0	47%median 11.3
Heating capacity at 5°F	45%median 11,600 Btu/h	51%median 15,750 Btu/h
Outdoor models	21	54
AHRI certifications	21	87

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	ROVSUN	TGM
CEE 2025 Tier 1 (Split ASHP)	33.3%7 models	31.5%17 models
CEE 2026 Tier 1 (Split ASHP)	33.3%7 models	31.5%17 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	23.8%5 models	24.1%13 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	14.3%3 models	13%7 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 · 3 groups where both have models

ROVSUN
TGM
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	ROVSUN	TGM
Ducted, up to 1.5 tons	None	5 · index 66%
Ducted, 2 tons	None	6 · index 73%
Ducted, 2.5–3 tons	None	10 · index 57%
Ducted, 3.5–4.5 tons	None	11 · index 53%
Ducted, 5 tons and up	None	1 · index 75%
Non-ducted, up to 1.5 tons	19 · index 33%	13 · index 41%
Non-ducted, 2 tons	1 · index —	3 · index 75%
Non-ducted, 2.5–3 tons	1 · index 28%	11 · index 49%
Non-ducted, 3.5–4.5 tons	None	3 · index 46%

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	ROVSUNCold-climate score, best model	TGMCold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	67.8(50 is the typical model of its size class)MRSVHT12ASwith ducted air handler MFCHT12S2 of 5 models qualify · AHRI 209843017
Ducted, 2 tons	No models in this size class	82.4(50 is the typical model of its size class)MRSVHT24ASwith ducted air handler MFCHT24S1 of 5 models qualify · AHRI 209843019
Ducted, 2.5–3 tons	No models in this size class	55.3(50 is the typical model of its size class)GTS18HN036Awith ducted air handler GTA18H036A1 of 11 models qualify · AHRI 210627721
Ducted, 3.5–4.5 tons	No models in this size class	58.1(50 is the typical model of its size class)GTS18HN060Awith ducted air handler GTA18H048A1 of 11 models qualify · AHRI 210627723
Ducted, 5 tons and up	No models in this size class	70.2(50 is the typical model of its size class)MRB60HWD1 of 1 models qualify · AHRI 203258672
Non-ducted, up to 1.5 tons	47.5(50 is the typical model of its size class)TSC-12HA2/I3XI23-Owith ductless indoor unit TSC-12HA2/I3XI23-I5 of 19 models qualify · AHRI 213927362	77.5(50 is the typical model of its size class) (higher)MRAPT12ASwith ductless indoor unit MWAPT12S8 of 13 models qualify · AHRI 209550324
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	74.2(50 is the typical model of its size class)MRSVHT24ASwith ductless indoor unit MUVHT24S2 of 3 models qualify · AHRI 209843024
Non-ducted, 2.5–3 tons	None on this board (0 of 1 models qualify)	49.3(50 is the typical model of its size class)MMRSHT27AS32 of 11 models qualify · AHRI 209843048
Non-ducted, 3.5–4.5 tons	No models in this size class	56.3(50 is the typical model of its size class)MRSVHT48ASwith ductless indoor unit MUVHT48S2 of 3 models qualify · AHRI 209843026

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	ROVSUNAll-around score, best model	TGMAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	78.5(50 is the typical model of its size class)MRSVHT18ASwith ducted air handler MFCHT18S3 of 5 models have all five ratings · AHRI 209843018
Ducted, 2 tons	No models in this size class	84.9(50 is the typical model of its size class)MRSVHT24ASwith ducted air handler MFCHT24S2 of 6 models have all five ratings · AHRI 209843019
Ducted, 2.5–3 tons	No models in this size class	75.4(50 is the typical model of its size class)MMRSHT27AS33 of 10 models have all five ratings · AHRI 209843049
Ducted, 3.5–4.5 tons	No models in this size class	63.5(50 is the typical model of its size class)MMRSHT48AS53 of 11 models have all five ratings · AHRI 209843055
Ducted, 5 tons and up	No models in this size class	75.1(50 is the typical model of its size class)MRB60HWD1 of 1 models have all five ratings · AHRI 203258672
Non-ducted, up to 1.5 tons	60.2(50 is the typical model of its size class)TSC-12HA2/I3XI23-Owith ductless indoor unit TSC-12HA2/I3XI23-I10 of 19 models have all five ratings · AHRI 213927362	83.0(50 is the typical model of its size class) (higher)MRAPT12ASwith ductless indoor unit MWAPT12S13 of 13 models have all five ratings · AHRI 209550324
Non-ducted, 2 tons	None on this board (0 of 1 models have all five ratings)	77.5(50 is the typical model of its size class)MRAPT24ASwith ductless indoor unit MWAPT24S2 of 3 models have all five ratings · AHRI 209550325
Non-ducted, 2.5–3 tons	28.1(50 is the typical model of its size class)TMSC-27HA2/I2XI19-O1 of 1 models have all five ratings · AHRI 213927368	66.7(50 is the typical model of its size class) (higher)MMRSHT27AS36 of 11 models have all five ratings · AHRI 209843048
Non-ducted, 3.5–4.5 tons	No models in this size class	51.7(50 is the typical model of its size class)MMRSHT48AS52 of 3 models have all five ratings · AHRI 209843054

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	ROVSUN	TGM
COP at 5°F	beats 22% · 1.80TSC-18HA2/I2AXI19-OAlso listed as TSC-18HA2/I2XI19-ONon-ducted, up to 1.5 tons	beats 91% · 2.27MRSVHT12ASNon-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 60% · 76%TSC-12HA2/I3XI23-ONon-ducted, up to 1.5 tons	beats 92% · 70%MRB60HWDDucted, 5 tons and up
HSPF2	beats 57% · 9.5TSC-12HA2/I3XI23-ONon-ducted, up to 1.5 tons	beats 98% · 11.2MRSVHT24ASDucted, 2 tons
SEER2	beats 73% · 23.0TSC-09HA1/I3XI22-ONon-ducted, up to 1.5 tons	beats 98% · 21.0MMRSHT27AS3Ducted, 2.5–3 tons
EER2	beats 68% · 13.0TSC-12HA2/I3XI23-ONon-ducted, up to 1.5 tons	beats 97% · 14.0MRAPT24ASNon-ducted, 2 tons
Heating capacity at 5°F	beats 78% · 13,000 Btu/hTMSC-18HA2/I2XI20-ONon-ducted, up to 1.5 tons	beats 91% · 40,000 Btu/hMRB60HWDDucted, 5 tons and up

More comparisons

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ROVSUN vs TGM heat pumps