APOWER vs Ozone Spirit heat pumps

Measured against models of the same size and duct type, APOWER scores higher on 5 of the 6 ratings. APOWER has 19 outdoor models, Ozone Spirit has 19 outdoor models. APOWER and Ozone Spirit have no QMID on file and are not ranked.

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CompareData as of Oct 9, 2026updated Oct 10, 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.

APOWER and Ozone Spirit 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, APOWER scores higher on 5 of the 6 ratings.

APOWER
Ozone Spirit
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	APOWER	Ozone Spirit
Efficiency index	58% (higher)median —	47% (higher)median —
COP at 5°F	49%median 2.00	72%median 2.15
Capacity retention at 5°F	65% (higher)median 90%	15% (higher)median 66%
HSPF2	43% (higher)median 9.2	14% (higher)median 8.3
SEER2	61% (higher)median 21.0	23% (higher)median 19.0
EER2	67% (higher)median 12.0	17% (higher)median 9.5
Heating capacity at 5°F	62% (higher)median 14,600 Btu/h	19% (higher)median 6,700 Btu/h
Outdoor models	19	19
AHRI certifications	55	19

Share of models meeting each standard

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

APOWER
Ozone Spirit
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	APOWER	Ozone Spirit
Ducted, up to 1.5 tons	5 · index 72%	None
Ducted, 2 tons	2 · index 64%	None
Ducted, 2.5–3 tons	4 · index 61%	None
Ducted, 3.5–4.5 tons	2 · index 74%	None
Non-ducted, up to 1.5 tons	9 · index 45%	10 · index 46%
Non-ducted, 2 tons	3 · index 55%	4 · index 48%
Non-ducted, 2.5–3 tons	4 · index 60%	5 · index —
Non-ducted, 3.5–4.5 tons	1 · index 68%	None

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	APOWERCold-climate score, best model	Ozone SpiritCold-climate score, best model
Ducted, up to 1.5 tons	69.9(50 is the typical model of its size class)AP24HP230VBOwith ducted air handler APDE09HP230VAIAlso listed as AP09HP230VBO5 of 5 models qualify · AHRI 215832423	No models in this size class
Ducted, 2 tons	49.0(50 is the typical model of its size class)AP3M24HP230VMO1 of 1 models qualify · AHRI 215832436	No models in this size class
Ducted, 2.5–3 tons	76.9(50 is the typical model of its size class)APFH36HP230VAO-R32with ducted air handler APF36HP230VAI-R325 of 5 models qualify · AHRI 217655829	No models in this size class
Ducted, 3.5–4.5 tons	85.1(50 is the typical model of its size class)APFH60HP230VAO-R32with ducted air handler APF60HP230VAI-R322 of 2 models qualify · AHRI 217655831	No models in this size class
Non-ducted, up to 1.5 tons	62.2(50 is the typical model of its size class)AP09HP230VBOwith ductless indoor unit AP09HP230VBI9 of 9 models qualify · AHRI 215832408	None on this board (0 of 10 models qualify)
Non-ducted, 2 tons	67.5(50 is the typical model of its size class)AP3M24HP230VMO2 of 3 models qualify · AHRI 215832435	None on this board (0 of 4 models qualify)
Non-ducted, 2.5–3 tons	77.2(50 is the typical model of its size class)AP5M36HP230VMOAlso listed as AP4M36HP230VMO4 of 4 models qualify · AHRI 215832441	None on this board (0 of 5 models qualify)
Non-ducted, 3.5–4.5 tons	66.5(50 is the typical model of its size class)AP5M42HP230VMO1 of 1 models qualify · AHRI 215832444	No models in this size class

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	APOWERAll-around score, best model	Ozone SpiritAll-around score, best model
Ducted, up to 1.5 tons	83.6(50 is the typical model of its size class)AP24HP230VBOwith ducted air handler APDE09HP230VAIAlso listed as AP09HP230VBO5 of 5 models have all five ratings · AHRI 215832423	No models in this size class
Ducted, 2 tons	72.4(50 is the typical model of its size class)APFH36HP230VAO-R32with ducted air handler APF24HP230VAI-R322 of 2 models have all five ratings · AHRI 217655828	No models in this size class
Ducted, 2.5–3 tons	64.6(50 is the typical model of its size class)AP36HP230VAOwith ducted air handler AP36HP230VDAI4 of 4 models have all five ratings · AHRI 215832432	No models in this size class
Ducted, 3.5–4.5 tons	83.1(50 is the typical model of its size class)APFH60HP230VAO-R32with ducted air handler APF48HP230VAI-R322 of 2 models have all five ratings · AHRI 217655830	No models in this size class
Non-ducted, up to 1.5 tons	78.0(50 is the typical model of its size class) (higher)AP09HP230VBOwith ductless indoor unit AP09HP230VBI9 of 9 models have all five ratings · AHRI 215832408	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
Non-ducted, 2 tons	72.2(50 is the typical model of its size class) (higher)AP24HP230VBOwith ductless indoor unit AP24HP230VBI3 of 3 models have all five ratings · AHRI 215832411	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
Non-ducted, 2.5–3 tons	70.5(50 is the typical model of its size class)AP4M30HP230VMO4 of 4 models have all five ratings · AHRI 215832438	None on this board (0 of 5 models have all five ratings)
Non-ducted, 3.5–4.5 tons	67.7(50 is the typical model of its size class)AP5M42HP230VMO1 of 1 models have all five ratings · AHRI 215832444	No models in this size class

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	APOWER	Ozone Spirit
COP at 5°F	beats 88% · 2.10AP5M36HP230VMOAlso listed as AP4M36HP230VMONon-ducted, 2.5–3 tons	beats 96% · 2.21COPIH362ANon-ducted, 2.5–3 tons
Capacity retention at 5°F	beats 94% · 100%APFH60HP230VAO-R32Ducted, 3.5–4.5 tons	beats 16% · 67%COPXIH122ANon-ducted, up to 1.5 tons
HSPF2	beats 90% · 10.5APFH60HP230VAO-R32Ducted, 3.5–4.5 tons	beats 69% · 10.0COPXIH242ANon-ducted, 2 tons
SEER2	beats 99% · 22.5AP18HP230VBODucted, up to 1.5 tons	beats 47% · 21.0COPXIH242ANon-ducted, 2 tons
EER2	beats 97% · 14.2AP24HP230VBOAlso listed as AP09HP230VBODucted, up to 1.5 tons	beats 52% · 12.0COPXIH242ANon-ducted, 2 tons
Heating capacity at 5°F	beats 98% · 54,000 Btu/hAPFH60HP230VAO-R32Ducted, 3.5–4.5 tons	beats 66% · 11,600 Btu/hCOPXIH182ANon-ducted, up to 1.5 tons

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