Ozone Spirit vs TEMP SHIFT heat pumps

Measured against models of the same size and duct type, TEMP SHIFT scores higher on 5 of the 6 ratings. Ozone Spirit has 19 outdoor models, TEMP SHIFT has 19 outdoor models. Ozone Spirit 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.

Ozone Spirit 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 5 of the 6 ratings.

Ozone Spirit
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	Ozone Spirit	TEMP SHIFT
Efficiency index	47%median —	66%median —
COP at 5°F	72% (higher)median 2.15	52% (higher)median 2.00
Capacity retention at 5°F	15%median 66%	79%median 95%
HSPF2	14%median 8.3	79%median 10.2
SEER2	23%median 19.0	61%median 19.4
EER2	17%median 9.5	62%median 12.0
Heating capacity at 5°F	19%median 6,700 Btu/h	76%median 24,000 Btu/h
Outdoor models	19	19
AHRI certifications	19	51

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	Ozone Spirit	TEMP SHIFT
CEE 2025 Tier 1 (Split ASHP)	15.8%3 models	94.7%18 models
CEE 2026 Tier 1 (Split ASHP)	15.8%3 models	94.7%18 models
CEE Advanced Tier (Split ASHP)	0%0 models	5.3%1 models
Xcel Energy Colorado cold-climate ASHP (2025)	0%0 models	89.5%17 models
DOE Cold Climate Heat Pump Challenge	0%0 models	5.3%1 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 · 3 groups where both have models

Ozone Spirit
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	Ozone Spirit	TEMP SHIFT
Ducted, up to 1.5 tons	None	5 · index 76%
Ducted, 2 tons	None	2 · index 70%
Ducted, 2.5–3 tons	None	4 · index 73%
Ducted, 3.5–4.5 tons	None	4 · index 65%
Non-ducted, up to 1.5 tons	10 · index 46%	5 · index 74%
Non-ducted, 2 tons	4 · index 48%	1 · index 68%
Non-ducted, 2.5–3 tons	5 · index —	4 · index 44%
Non-ducted, 3.5–4.5 tons	None	3 · index 52%

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	Ozone SpiritCold-climate score, best model	TEMP SHIFTCold-climate score, best model
Ducted, up to 1.5 tons	No models in this size class	82.3(50 is the typical model of its size class)TSSZHH182R5with ducted air handler TSDT182R55 of 5 models qualify · AHRI 218426393
Ducted, 2 tons	No models in this size class	85.7(50 is the typical model of its size class)TSSZHH242R5with ducted air handler TSDT242R52 of 2 models qualify · AHRI 218426394
Ducted, 2.5–3 tons	No models in this size class	82.5(50 is the typical model of its size class)TSMZHH365Z2R54 of 4 models qualify · AHRI 218426402
Ducted, 3.5–4.5 tons	No models in this size class	82.7(50 is the typical model of its size class)TSMZHH486Z2R54 of 4 models qualify · AHRI 218426405
Non-ducted, up to 1.5 tons	None on this board (0 of 10 models qualify)	93.8(50 is the typical model of its size class)TSSZHH062R5with ductless indoor unit TSHW062R55 of 5 models qualify · AHRI 218426379
Non-ducted, 2 tons	None on this board (0 of 4 models qualify)	89.4(50 is the typical model of its size class)TSSZHH242R5with ductless indoor unit TSCS242R51 of 1 models qualify · AHRI 218426389
Non-ducted, 2.5–3 tons	None on this board (0 of 5 models qualify)	72.6(50 is the typical model of its size class)TSMZHH365Z2R52 of 4 models qualify · AHRI 218426403
Non-ducted, 3.5–4.5 tons	No models in this size class	69.9(50 is the typical model of its size class)TSMZHH556Z2R53 of 3 models qualify · AHRI 218426409

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	Ozone SpiritAll-around score, best model	TEMP SHIFTAll-around score, best model
Ducted, up to 1.5 tons	No models in this size class	86.5(50 is the typical model of its size class)TSSZHH092R5with ducted air handler TSDT092R55 of 5 models have all five ratings · AHRI 218426391
Ducted, 2 tons	No models in this size class	78.4(50 is the typical model of its size class)TSSZHH242R5with ducted air handler TSDT242R52 of 2 models have all five ratings · AHRI 218426394
Ducted, 2.5–3 tons	No models in this size class	83.6(50 is the typical model of its size class)TSMZHH365Z2R54 of 4 models have all five ratings · AHRI 218426402
Ducted, 3.5–4.5 tons	No models in this size class	83.9(50 is the typical model of its size class)TSMZHH486Z2R54 of 4 models have all five ratings · AHRI 218426405
Non-ducted, up to 1.5 tons	49.2(50 is the typical model of its size class)COPXIH122Awith ductless indoor unit EOPXIH122A2 of 10 models have all five ratings · AHRI 214660278	93.8(50 is the typical model of its size class) (higher)TSSZHH062R5with ductless indoor unit TSHW062R55 of 5 models have all five ratings · AHRI 218426379
Non-ducted, 2 tons	47.9(50 is the typical model of its size class)COPXIH242Awith ductless indoor unit EOPXIH242A1 of 4 models have all five ratings · AHRI 214660280	72.9(50 is the typical model of its size class) (higher)TSSZHH242R5with ductless indoor unit TSHW242R51 of 1 models have all five ratings · AHRI 218426383
Non-ducted, 2.5–3 tons	None on this board (0 of 5 models have all five ratings)	66.3(50 is the typical model of its size class)TSMZHH365Z2R54 of 4 models have all five ratings · AHRI 218426401
Non-ducted, 3.5–4.5 tons	No models in this size class	62.6(50 is the typical model of its size class)TSMZHH556Z2R53 of 3 models have all five ratings · AHRI 218426407

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	Ozone Spirit	TEMP SHIFT
COP at 5°F	beats 96% · 2.21COPIH362ANon-ducted, 2.5–3 tons	beats 91% · 2.29TSSZHH062R5Non-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 16% · 67%COPXIH122ANon-ducted, up to 1.5 tons	beats 98% · 120%TSSZHH092R5Ducted, up to 1.5 tons
HSPF2	beats 69% · 10.0COPXIH242ANon-ducted, 2 tons	beats 99% · 11.0TSMZHH486Z2R5Ducted, 3.5–4.5 tons
SEER2	beats 47% · 21.0COPXIH242ANon-ducted, 2 tons	beats 96% · 20.4TSMZHH486Z2R5Ducted, 3.5–4.5 tons
EER2	beats 52% · 12.0COPXIH242ANon-ducted, 2 tons	beats 96% · 16.0TSSZHH062R5Non-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 66% · 11,600 Btu/hCOPXIH182ANon-ducted, up to 1.5 tons	beats 97% · 39,000 Btu/hTSHCHH362R5Ducted, 2.5–3 tons

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