PURE heat pump efficiency: 6 outdoor models compared

PURE has 6 heat pump outdoor models certified with this refrigerant group, in 6 AHRI-certified combinations. Each model is compared with models of the same size and duct type, so the scores below do not depend on which sizes PURE makes. PURE has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

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ManufacturerData as of Oct 9, 2026updated Oct 10, 2026 · sources

Outdoor models: 6
AHRI certifications: 6
Efficiency index: 27%; Typical model vs same-size, same-type peers (1 model)
Meet CEE 2025: 16.7%; 1 model

How PURE compares with comparable models

For each rating: the share of same-size, same-type models that a typical model of this manufacturer beats (50% is typical), its rank, and the raw median for context. Raw medians are not comparable across manufacturers that make different sizes.

PURE against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of PURE’s own modelsPURE is strongest on heating capacity at 5°F (its typical model beats 78% of comparable models) and weakest on HSPF2 (4%).

PURE
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of PURE’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index1 model scored	27%	Not ranked	—
COP at 5°F1 model scored	22%	Not ranked	1.80
Capacity retention at 5°F1 model scored	23%	Not ranked	65%
HSPF26 models scored	4%	Not ranked	7.8
SEER26 models scored	24%	Not ranked	19.0
EER26 models scored	16%	Not ranked	10.0
Heating capacity at 5°F1 model scored	78%	Not ranked	13,000 Btu/h

Standards met

Share of PURE’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	16.7%	1
CEE 2026 Tier 1 (Split ASHP)	16.7%	1
CEE Advanced Tier (Split ASHP)	0%	0
Xcel Energy Colorado cold-climate ASHP (2025)	0%	0
DOE Cold Climate Heat Pump Challenge	0%	0
ENERGY STAR Cold Climate	0%	0

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.

PURE’s models inside each size and duct typeShape: every model of the group · blue: the middle half of this manufacturer’s models there, median dot, 10th–90th percentile line

PURE (median, middle 50%, 10th–90th)
All models of the group

Source: AHRI Directory · as of Oct 9, 2026

Share of comparable models beaten, per peer group
Size and duct type	Models	Index	COP@5°F	HSPF2	SEER2
Non-ducted, up to 1.5 tons	5	27%	22%	5%	26%
Non-ducted, 2 tons	1	—	—	2%	16%

Every PURE model in the market

PURE’s 6 models with a known size and duct type, over the shape of the whole catalog.

PURE models by size and ratingColoured: PURE · grey shapes: all 11,475 models · lines: catalog medians by size

PURE models
Ducted median by size
Non-ducted median by size
Every model at each size (width = count)
Standard threshold

Dots: 6 pure models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 11,475 models, half a ton at a time.

Show the data as a table

COP at 5°F by size and duct type (every model, by rated cooling capacity)
Duct type, size	Models	10th pct.	25th	Median	75th	90th
Ducted, 0.5 tons	175	1.70	1.85	1.90	2.10	2.26
Ducted, 1 ton	340	1.85	1.90	2.00	2.40	2.65
Ducted, 1.5 tons	789	1.75	1.85	2.00	2.20	2.55
Ducted, 2 tons	782	1.73	1.80	2.00	2.10	2.33
Ducted, 2.5 tons	735	1.71	1.80	1.90	2.09	2.48
Ducted, 3 tons	652	1.68	1.70	1.90	2.06	2.36
Ducted, 3.5 tons	641	1.61	1.80	1.95	2.20	2.50
Ducted, 4 tons	367	1.70	1.80	1.91	2.02	2.52
Ducted, 4.5 tons	544	1.70	1.80	1.91	2.08	2.34
Ducted, 5 tons	25	1.80	1.80	1.90	1.90	2.15
Non-ducted, 0.5 tons	717	1.75	1.81	1.97	2.10	2.19
Non-ducted, 1 ton	1,064	1.75	1.80	1.90	2.07	2.25
Non-ducted, 1.5 tons	886	1.80	1.80	1.87	2.07	2.21
Non-ducted, 2 tons	564	1.80	1.80	1.83	2.04	2.21
Non-ducted, 2.5 tons	275	1.80	1.81	1.84	1.86	2.03
Non-ducted, 3 tons	502	1.80	1.80	1.90	2.00	2.09
Non-ducted, 3.5 tons	70	1.82	1.83	1.90	2.00	2.28
Non-ducted, 4 tons	263	1.80	1.80	1.98	2.00	2.10
Non-ducted, 4.5 tons	103	1.77	1.77	1.80	1.97	2.02
Non-ducted, 5 tons	29	1.98	2.00	2.10	2.30	2.47

Source: AHRI Directory · as of Oct 9, 2026

Top PURE models

Its top five cold-climate picks and its top five all-around models across sizes (both scores compare each model with models of its own size and duct type, so sizes compare), then, on each single rating, the model that beats the largest share of comparable models.

Cold-climate picks

No PURE model keeps at least 70% of its heat at 5°F with all three cold-climate ratings.

All-around best

Top 1 PURE models on the all-around score across sizes. 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.
# · Outdoor model	Size · type	Cap. 5/47	COP@5°F	HSPF2	SEER2	EER2	Meets	Combos	AHRI ref.	Compared with	Score	Heating half	Cooling half	Cold-climate score
1PIN18H2V51(O)PURE	1.5 tons18,000 Btu/h · Non-ducted	65%	1.80	8.5	20.0	11.0	CEE 25CEE 26	1	207236344	Non-ducted, up to 1.5 tons	27.2	20.4	34.0	Not a pick

Best model on each rating

PURE’s model with the highest peer percentile on each rating, ranked by that one rating only
Rating	Model	Value	Compared with	Beats	AHRI ref.
COP at 5°F	PIN18H2V51(O)	1.80	Non-ducted, up to 1.5 tons	22%	207236344
Capacity retention at 5°F	PIN18H2V51(O)	65%	Non-ducted, up to 1.5 tons	22%	207236344
HSPF2	PIN18H2V51(O)	8.5	Non-ducted, up to 1.5 tons	16%	207236344
SEER2	PIN18H2V51(O)	20.0	Non-ducted, up to 1.5 tons	33%	207236344
EER2	PIN18H2V51(O)	11.0	Non-ducted, up to 1.5 tons	32%	207236344
Heating capacity at 5°F	PIN18H2V51(O)	13,000 Btu/h	Non-ducted, up to 1.5 tons	78%	207236344

All 6 PURE models in Explore

PURE size class by size class: cold-climate and all-around

Its best model on each board in every size and duct type it makes. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there). Cold-climate picks must keep at least 70% of their heat at 5°F; the all-around score needs all five ratings and has no such bar.

PURE: best cold-climate pick and best all-around model per size and duct type, with how many of its models are on each board (top 5 and 5 per class are in the snapshot)
Size and duct type	Cold-climate pickCold-climate score, best model	All-around bestAll-around score, best model
Non-ducted, up to 1.5 tons	None on this board (0 of 5 models qualify)	27.2(50 is the typical model of its size class)PIN18H2V51(O)1 of 5 models have all five ratings · AHRI 207236344
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	None on this board (0 of 1 models have all five ratings)

All-around board, every manufacturer

Newest PURE certifications

By AHRI reference number; AHRI issues references in increasing order.

The 5 most recently certified PURE outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
PIN24H2V51(O)PUREwith ductless indoor unit PIN24H2V51(I)	2 tons24,000 Btu/h · Non-ducted	—	—	7.8	18.0	None	1	207236345
PIN18H2V51(O)PURE	1.5 tons18,000 Btu/h · Non-ducted	1.80	65%	8.5	20.0	CEE 25CEE 26	1	207236344
PIN12H2V51(O)PUREwith ductless indoor unit PIN12H2V51(I)	1 ton12,000 Btu/h · Non-ducted	—	—	7.8	19.0	None	1	207236343
PIN12H1V51(O)PUREwith ductless indoor unit PIN12H1V51(I)	1 ton12,000 Btu/h · Non-ducted	—	—	7.8	19.0	None	1	207236342
PIN09H2V51(O)PUREwith ductless indoor unit PIN09H2V51(I)	1 ton9,000 Btu/h · Non-ducted	—	—	7.8	19.0	None	1	207236341

Shares hardware with

Manufacturers whose models are the same equipment under another badge. About OEM families

No shared hardware found for PURE in this group.

Compare PURE

Manufacturers of a similar size, side by side.

Compare with any manufacturer

PURE includes these brand names as listed in AHRI: PURE. Standards are checked against published thresholds; program rules beyond ratings are not checked.