Everwell vs TEMP SHIFT heat pumps

Measured against models of the same size and duct type, TEMP SHIFT scores higher on 6 of the 6 ratings. Everwell has 27 outdoor models, TEMP SHIFT has 28 outdoor models. Everwell and TEMP SHIFT have no QMID on file and are not ranked.

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CompareData as of Oct 11, 2026updated Oct 11, 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.

Everwell and TEMP SHIFT 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, TEMP SHIFT scores higher on 6 of the 6 ratings.

Everwell
TEMP SHIFT
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	Everwell	TEMP SHIFT
Efficiency index	14%median —	59%median —
COP at 5°F	22%median 1.80	47%median 1.91
Capacity retention at 5°F	16%median 61%	73%median 84%
HSPF2	16%median 7.8	74%median 9.6
SEER2	22%median 17.0	60%median 17.5
EER2	27%median 10.0	47%median 10.6
Heating capacity at 5°F	62%median 11,600 Btu/h	69%median 25,400 Btu/h
Outdoor models	27	28
AHRI certifications	31	66

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Everwell	TEMP SHIFT
CEE 2025 Tier 1 (Split ASHP)	0%0 models	67.9%19 models
CEE 2026 Tier 1 (Split ASHP)	0%0 models	64.3%18 models
CEE Advanced Tier (Split ASHP)	0%0 models	0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	67.9%19 models
DOE Cold Climate Heat Pump Challenge	0%0 models	0%0 models
ENERGY STAR Cold Climate	0%0 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 · 7 groups where both have models

Everwell
TEMP SHIFT
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	Everwell	TEMP SHIFT
Ducted, up to 1.5 tons	1 · index —	6 · index 57%
Ducted, 2 tons	2 · index —	3 · index 59%
Ducted, 2.5–3 tons	3 · index —	8 · index 57%
Ducted, 3.5–4.5 tons	5 · index —	6 · index 57%
Non-ducted, up to 1.5 tons	10 · index 14%	5 · index 70%
Non-ducted, 2 tons	2 · index —	1 · index 66%
Non-ducted, 2.5–3 tons	4 · index —	6 · index 58%
Non-ducted, 3.5–4.5 tons	None	3 · index 53%

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	EverwellCold-climate score, best model	TEMP SHIFTCold-climate score, best model
Ducted, up to 1.5 tons	None on this board (0 of 1 models qualify)	74.9(50 is the typical model of its size class)TSMOX33009HFN1MY5Wwith ducted air handler TSMTIU09HWFN1M5 of 6 models qualify · AHRI 213479385
Ducted, 2 tons	None on this board (0 of 2 models qualify)	79.4(50 is the typical model of its size class)TSMOD3024HFN1MU0Wwith ducted air handler TSMTIU24HWFN1M3 of 3 models qualify · AHRI 213479388
Ducted, 2.5–3 tons	None on this board (0 of 3 models qualify)	80.4(50 is the typical model of its size class)TSM3OK27HFN1M6 of 8 models qualify · AHRI 213479393
Ducted, 3.5–4.5 tons	None on this board (0 of 5 models qualify)	74.9(50 is the typical model of its size class)TSM5OG48HFN1M[X]4 of 6 models qualify · AHRI 213479399
Non-ducted, up to 1.5 tons	None on this board (0 of 10 models qualify)	74.8(50 is the typical model of its size class)TSMOX33009HFN1MY5Wwith ductless indoor unit TSMSAG11B09HRFN1MX7W(GA)5 of 5 models qualify · AHRI 216014856
Non-ducted, 2 tons	None on this board (0 of 2 models qualify)	86.1(50 is the typical model of its size class)TSMOD3024HFN1MU0Wwith ductless indoor unit TSMCD124HRFN1MT0W(GA)1 of 1 models qualify · AHRI 213479382
Non-ducted, 2.5–3 tons	None on this board (0 of 4 models qualify)	87.0(50 is the typical model of its size class)TSM4OX63036HFN1M1X4 of 6 models qualify · AHRI 213479395
Non-ducted, 3.5–4.5 tons	No models in this size class	80.5(50 is the typical model of its size class)TSM5OG48HFN1M[X]3 of 3 models qualify · AHRI 213479398

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	EverwellAll-around score, best model	TEMP SHIFTAll-around score, best model
Ducted, up to 1.5 tons	None on this board (0 of 1 models have all five ratings)	85.2(50 is the typical model of its size class)TSMOX33009HFN1MY5Wwith ducted air handler TSMTIU09HWFN1M6 of 6 models have all five ratings · AHRI 213479385
Ducted, 2 tons	None on this board (0 of 2 models have all five ratings)	80.1(50 is the typical model of its size class)TSMOD3024HFN1MU0Wwith ducted air handler TSMTIU24HWFN1M3 of 3 models have all five ratings · AHRI 213479388
Ducted, 2.5–3 tons	None on this board (0 of 3 models have all five ratings)	83.7(50 is the typical model of its size class)TSM4OX63036HFN1M1X8 of 8 models have all five ratings · AHRI 213479396
Ducted, 3.5–4.5 tons	None on this board (0 of 5 models have all five ratings)	82.0(50 is the typical model of its size class)TSM5OG48HFN1M[X]5 of 5 models have all five ratings · AHRI 213479399
Ducted, 5 tons and up	No models in this size class	41.7(50 is the typical model of its size class)TSMOE30U60HFN1MR0with ducted air handler TSMVC60HWFN1M1 of 1 models have all five ratings · AHRI 212925591
Non-ducted, up to 1.5 tons	14.2(50 is the typical model of its size class)MGTH1823C-20with ductless indoor unit MGTH1823E-201 of 10 models have all five ratings · AHRI 205415927	84.4(50 is the typical model of its size class) (higher)TSMOX33009HFN1MY5Wwith ductless indoor unit TSMSAG11B09HRFN1MX7W(GA)5 of 5 models have all five ratings · AHRI 216014856
Non-ducted, 2 tons	None on this board (0 of 2 models have all five ratings)	70.7(50 is the typical model of its size class)TSMOD3024HFN1MU0Wwith ductless indoor unit TSMSAG11D23HRFN1MU0W1 of 1 models have all five ratings · AHRI 216014859
Non-ducted, 2.5–3 tons	None on this board (0 of 4 models have all five ratings)	76.8(50 is the typical model of its size class)TSM4OX63036HFN1M1X6 of 6 models have all five ratings · AHRI 213479395
Non-ducted, 3.5–4.5 tons	No models in this size class	73.8(50 is the typical model of its size class)TSM5OG48HFN1M[X]3 of 3 models have all five ratings · AHRI 213479398

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	Everwell	TEMP SHIFT
COP at 5°F	beats 22% · 1.80MGTH1823C-20Non-ducted, up to 1.5 tons	beats 87% · 2.01TSMOD3136HFN1MP0WNon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 16% · 61%MGTH1823C-20Non-ducted, up to 1.5 tons	beats 96% · 101%TSM3OK27HFN1MDucted, 2.5–3 tons
HSPF2	beats 49% · 8.1CAC4813H18Ducted, 3.5–4.5 tons	beats 98% · 12.0TSMOX33009HFN1MY5WDucted, up to 1.5 tons
SEER2	beats 65% · 16.0CAC4813H18Ducted, 3.5–4.5 tons	beats 99% · 20.9TSM5OG48HFN1M[X]Ducted, 3.5–4.5 tons
EER2	beats 76% · 12.2CAC2413H18Ducted, 2 tons	beats 95% · 15.8TSMOX33009HFN1MY5WNon-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 61% · 11,600 Btu/hMGTH1823C-20Non-ducted, up to 1.5 tons	beats 98% · 41,000 Btu/hTSMOE30U36HFN1M(GA)Non-ducted, 2.5–3 tons

More comparisons

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