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.

HAXXAIR and Senville 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, HAXXAIR scores higher on 4 of the 6 ratings.

HAXXAIR
Senville
Other ranked manufacturers

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

Average peer percentile, raw median and rank among ranked manufacturers
Rating	HAXXAIR	Senville
Efficiency index	71% (higher)median —	64% (higher)median — · 2nd ranked
COP at 5°F	55%median 2.09	57%median 2.00 · 15th ranked
Capacity retention at 5°F	78% (higher)median 97%	68% (higher)median 91% · 1st ranked
HSPF2	69%median 10.0	72%median 10.0 · 2nd ranked
SEER2	78% (higher)median 22.0	68% (higher)median 21.1 · 1st ranked
EER2	73% (higher)median 12.9	61% (higher)median 12.0 · 5th ranked
Heating capacity at 5°F	70% (higher)median 19,800 Btu/h	66% (higher)median 21,200 Btu/h · 3rd ranked
Outdoor models	15	34
AHRI certifications	23	64

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
Standard	HAXXAIR	Senville
CEE 2025 Tier 1 (Split ASHP)	100%15 models	82.4%28 models
CEE 2026 Tier 1 (Split ASHP)	100%15 models	79.4%27 models
CEE Advanced Tier (Split ASHP)	13.3%2 models	2.9%1 models
Xcel Energy Colorado cold-climate ASHP (2025)	100%15 models	73.5%25 models
DOE Cold Climate Heat Pump Challenge	13.3%2 models	2.9%1 models
ENERGY STAR Cold Climate	100%15 models	70.6%24 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 · 8 groups where both have models

HAXXAIR
Senville
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	HAXXAIR	Senville
Ducted, up to 1.5 tons	1 · index 65%	4 · index 77%
Ducted, 2 tons	1 · index 80%	4 · index 77%
Ducted, 2.5–3 tons	3 · index 71%	5 · index 69%
Ducted, 3.5–4.5 tons	2 · index 71%	6 · index 62%
Ducted, 5 tons and up	1 · index 81%	None
Non-ducted, up to 1.5 tons	7 · index 79%	15 · index 62%
Non-ducted, 2 tons	1 · index 58%	2 · index 55%
Non-ducted, 2.5–3 tons	2 · index 63%	5 · index 47%
Non-ducted, 3.5–4.5 tons	1 · index 44%	2 · index 67%

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	HAXXAIRCold-climate score, best model	SenvilleCold-climate score, best model
Ducted, up to 1.5 tons	66.2(50 is the typical model of its size class)HVHMZ-18V2D1 of 1 models qualify · AHRI 216707866	80.0(50 is the typical model of its size class) (higher)SENA-09HF-OGwith ducted air handler SENA-09HF-IDG4 of 4 models qualify · AHRI 215735300
Ducted, 2 tons	82.1(50 is the typical model of its size class)HVHDZ-24V2Dwith ducted air handler HAHDZ-24V2D1 of 1 models qualify · AHRI 216014850	85.7(50 is the typical model of its size class) (higher)SENA-24HF-OGwith ducted air handler SENA-24HF-IDG4 of 4 models qualify · AHRI 215735303
Ducted, 2.5–3 tons	87.9(50 is the typical model of its size class) (higher)HVHDZ-36V2Dwith ducted air handler HAHDZ-36V2D3 of 3 models qualify · AHRI 216014851	82.5(50 is the typical model of its size class)SENA-36HF-MOA4 of 5 models qualify · AHRI 215735318
Ducted, 3.5–4.5 tons	77.3(50 is the typical model of its size class)HVHDZ-48V2Dwith ducted air handler HAHDZ-48V2D2 of 2 models qualify · AHRI 216014852	82.7(50 is the typical model of its size class) (higher)SENA-48HF-MOA4 of 6 models qualify · AHRI 215735321
Ducted, 5 tons and up	88.7(50 is the typical model of its size class)HVHDZ-60V2Dwith ducted air handler HAHDZ-60V2D1 of 1 models qualify · AHRI 216014853	No models in this size class
Non-ducted, up to 1.5 tons	89.7(50 is the typical model of its size class)HVHZ-09A2Uwith ductless indoor unit HAHZ-09A2U7 of 7 models qualify · AHRI 217731091	96.7(50 is the typical model of its size class) (higher)SENA-06HF-OGwith ductless indoor unit SENA-06HF-IGG9 of 15 models qualify · AHRI 215735294
Non-ducted, 2 tons	48.1(50 is the typical model of its size class)HVHZ-24V2Dwith ductless indoor unit HAHZ-24V2D1 of 1 models qualify · AHRI 215887342	89.4(50 is the typical model of its size class) (higher)SENA-24HF-OGwith ductless indoor unit SENA-24HF-ICG2 of 2 models qualify · AHRI 215735307
Non-ducted, 2.5–3 tons	53.7(50 is the typical model of its size class)HVHMZ-36V2D2 of 2 models qualify · AHRI 216707875	78.0(50 is the typical model of its size class) (higher)SENA-36HF-MOA3 of 5 models qualify · AHRI 215735319
Non-ducted, 3.5–4.5 tons	16.4(50 is the typical model of its size class)HVHMZ-42V2D1 of 1 models qualify · AHRI 216707872	73.4(50 is the typical model of its size class) (higher)SENA-48HF-MOA2 of 2 models qualify · AHRI 215735322

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	HAXXAIRAll-around score, best model	SenvilleAll-around score, best model
Ducted, up to 1.5 tons	64.6(50 is the typical model of its size class)HVHMZ-18V2D1 of 1 models have all five ratings · AHRI 216707866	86.7(50 is the typical model of its size class) (higher)SENA-09HF-OGwith ducted air handler SENA-09HF-IDG4 of 4 models have all five ratings · AHRI 215735300
Ducted, 2 tons	79.5(50 is the typical model of its size class)HVHDZ-24V2Dwith ducted air handler HAHDZ-24V2D1 of 1 models have all five ratings · AHRI 216014850	89.9(50 is the typical model of its size class) (higher)SENE-24EL-OHwith ducted air handler SENE-24EL-IHH4 of 4 models have all five ratings · AHRI 218069801
Ducted, 2.5–3 tons	82.3(50 is the typical model of its size class)HVHDZ-36V2Dwith ducted air handler HAHDZ-36V2D3 of 3 models have all five ratings · AHRI 216014851	83.6(50 is the typical model of its size class) (higher)SENA-36HF-MOA5 of 5 models have all five ratings · AHRI 215735318
Ducted, 3.5–4.5 tons	82.3(50 is the typical model of its size class)HVHDZ-48V2Dwith ducted air handler HAHDZ-48V2D2 of 2 models have all five ratings · AHRI 216014852	83.9(50 is the typical model of its size class) (higher)SENA-48HF-MOA6 of 6 models have all five ratings · AHRI 215735321
Ducted, 5 tons and up	81.1(50 is the typical model of its size class)HVHDZ-60V2Dwith ducted air handler HAHDZ-60V2D1 of 1 models have all five ratings · AHRI 216014853	No models in this size class
Non-ducted, up to 1.5 tons	94.5(50 is the typical model of its size class)HVHZ-09A2Uwith ductless indoor unit HAHZ-09A2U7 of 7 models have all five ratings · AHRI 217731091	96.2(50 is the typical model of its size class) (higher)SENA-06HF-OGwith ductless indoor unit SENA-06HF-IGG13 of 15 models have all five ratings · AHRI 215735294
Non-ducted, 2 tons	58.3(50 is the typical model of its size class)HVHZ-24V2Dwith ductless indoor unit HAHZ-24V2D1 of 1 models have all five ratings · AHRI 215887342	76.4(50 is the typical model of its size class) (higher)SENA-24HF-OGwith ductless indoor unit SENA-24HF-IGG2 of 2 models have all five ratings · AHRI 215735298
Non-ducted, 2.5–3 tons	64.2(50 is the typical model of its size class)HVHMZ-27V2D2 of 2 models have all five ratings · AHRI 216707868	78.3(50 is the typical model of its size class) (higher)SENA-36HF-MOA5 of 5 models have all five ratings · AHRI 215735317
Non-ducted, 3.5–4.5 tons	43.7(50 is the typical model of its size class)HVHMZ-42V2D1 of 1 models have all five ratings · AHRI 216707872	75.6(50 is the typical model of its size class) (higher)SENA-48HF-MOA2 of 2 models have all five ratings · AHRI 215735320

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	HAXXAIR	Senville
COP at 5°F	beats 98% · 2.42HVHDZ-60V2DDucted, 5 tons and up	beats 97% · 2.40SENA-06HF-OGNon-ducted, up to 1.5 tons
Capacity retention at 5°F	beats 94% · 75%HVHDZ-60V2DDucted, 5 tons and up	beats 97% · 112%SENA-09HF-OGDucted, up to 1.5 tons
HSPF2	beats 96% · 10.5HVHDZ-36V2DDucted, 2.5–3 tons	beats 99% · 14.8SENA-06HF-OGNon-ducted, up to 1.5 tons
SEER2	beats 99% · 32.0HVHZ-09A2UNon-ducted, up to 1.5 tons	beats 100% · 25.0SENE-24EL-OHDucted, 2 tons
EER2	beats 100% · 18.4HVHZ-09A2UNon-ducted, up to 1.5 tons	beats 99% · 18.0SENA-06HF-OGNon-ducted, up to 1.5 tons
Heating capacity at 5°F	beats 93% · 18,000 Btu/hHVHZ-18V2DNon-ducted, up to 1.5 tons	beats 99% · 22,600 Btu/hSENE-18EL-IHHAlso listed as SENE-18EL-OHNon-ducted, up to 1.5 tons

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HAXXAIR vs Senville heat pumps