IAIR heat pump efficiency: 35 outdoor models compared

IAIR has 35 heat pump outdoor models certified with this refrigerant group, in 103 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 IAIR makes. IAIR has no QMID (IRS Qualified Manufacturer ID) on file, so it is not ranked against other manufacturers.

New to heat pump ratings? The Simple view explains them in plain words →

ManufacturerData as of Oct 11, 2026updated Oct 11, 2026 · sources

Outdoor models: 35
AHRI certifications: 103
Efficiency index: 18%; Typical model vs same-size, same-type peers (12 models)
Meet CEE 2025: 0%; 0 models

How IAIR 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.

IAIR against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of IAIR’s own modelsIAIR is strongest on EER2 (its typical model beats 60% of comparable models) and weakest on COP at 5°F (2%).

IAIR
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of IAIR’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index12 models scored	18%	Not ranked	—
COP at 5°F12 models scored	2%	Not ranked	1.40
Capacity retention at 5°F12 models scored	4%	Not ranked	36%
HSPF235 models scored	19%	Not ranked	7.5
SEER235 models scored	15%	Not ranked	14.3
EER235 models scored	60%	Not ranked	11.5
Heating capacity at 5°F12 models scored	4%	Not ranked	13,300 Btu/h

Standards met

Share of IAIR’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	0%	0
CEE 2026 Tier 1 (Split ASHP)	0%	0
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.

IAIR’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

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

Source: AHRI Directory · as of Oct 11, 2026

Share of comparable models beaten, per peer group
Size and duct type	Models	Index	COP@5°F	HSPF2	SEER2
Ducted, up to 1.5 tons	3	—	—	12%	10%
Ducted, 2 tons	5	12%	1%	16%	11%
Ducted, 2.5–3 tons	10	16%	2%	17%	11%
Ducted, 3.5–4.5 tons	15	21%	1%	24%	21%
Ducted, 5 tons and up	2	19%	4%	9%	12%

Every IAIR model in the market

IAIR’s 35 models with a known size and duct type, over the shape of the whole catalog.

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

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

Dots: 35 iair 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 11, 2026

Top IAIR 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 IAIR model keeps at least 70% of its heat at 5°F with all three cold-climate ratings.

All-around best

Top 5 IAIR 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
1APH3048E100AIAIRAlso listed as IPH3048E100A	4 tons46,500 Btu/h · Ducted	37%	1.40	6.7	13.4	11.4	None	1	212255588	Ducted, 3.5–4.5 tons	21.5	4.6	38.3	Not a pick
2APH3042E100AIAIRAlso listed as IPH3042E100A	3.5 tons40,500 Btu/h · Ducted	37%	1.40	6.7	13.4	11.2	None	1	212255586	Ducted, 3.5–4.5 tons	20.4	4.2	36.5	Not a pick
3APH3060E100AIAIRAlso listed as IPH3060E100A	5 tons57,000 Btu/h · Ducted	38%	1.40	6.7	13.4	11.0	None	1	212255589	Ducted, 5 tons and up	19.3	5.9	32.7	Not a pick
4APH3036E100AIAIRAlso listed as IPH3036E100A	3 tons34,200 Btu/h · Ducted	34%	1.40	6.7	13.4	11.2	None	1	212255584	Ducted, 2.5–3 tons	17.3	3.6	31.0	Not a pick
5APH3030E100AIAIRAlso listed as IPH3030E100A	2.5 tons28,200 Btu/h · Ducted	35%	1.40	6.7	13.4	11.0	None	1	212255583	Ducted, 2.5–3 tons	15.2	4.1	26.2	Not a pick

Best model on each rating

IAIR’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	APH3060E100AAlso listed as IPH3060E100A	1.40	Ducted, 5 tons and up	4%	212255589
Capacity retention at 5°F	APH3060E100AAlso listed as IPH3060E100A	38%	Ducted, 5 tons and up	5%	212255589
HSPF2	AHP5042E1000AAlso listed as IHP5042E1000A	7.8	Ducted, 3.5–4.5 tons	39%	211290018
SEER2	AHP5042E1000AAlso listed as IHP5042E1000A	15.2	Ducted, 3.5–4.5 tons	40%	211290018
EER2	AHP5042E1000AAlso listed as IHP5042E1000A	12.0	Ducted, 3.5–4.5 tons	82%	211290018
Heating capacity at 5°F	APH3060E100AAlso listed as IPH3060E100A	21,600 Btu/h	Ducted, 5 tons and up	11%	212255589

All 35 IAIR models in Explore

IAIR 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.

IAIR: 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
Ducted, up to 1.5 tons	None on this board (0 of 3 models qualify)	None on this board (0 of 3 models have all five ratings)
Ducted, 2 tons	None on this board (0 of 5 models qualify)	12.4(50 is the typical model of its size class)APH3024E100AAlso listed as IPH3024E100A2 of 5 models have all five ratings · AHRI 211289991
Ducted, 2.5–3 tons	None on this board (0 of 10 models qualify)	17.3(50 is the typical model of its size class)APH3036E100AAlso listed as IPH3036E100A4 of 10 models have all five ratings · AHRI 212255584
Ducted, 3.5–4.5 tons	None on this board (0 of 15 models qualify)	21.5(50 is the typical model of its size class)APH3048E100AAlso listed as IPH3048E100A4 of 15 models have all five ratings · AHRI 212255588
Ducted, 5 tons and up	None on this board (0 of 2 models qualify)	19.3(50 is the typical model of its size class)APH3060E100AAlso listed as IPH3060E100A2 of 2 models have all five ratings · AHRI 212255589

All-around board, every manufacturer

Newest IAIR certifications

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

The 5 most recently certified IAIR outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
IHP5060E1000AIAIRwith ducted air handler I4AH5E60E1B00T	4.5 tons54,500 Btu/h · Ducted	—	—	7.5	14.3	None	2	214783948
IHP5048E1000AIAIRwith ducted air handler I4AH5E60E1B00T	4 tons45,000 Btu/h · Ducted	—	—	7.8	15.2	None	4	214783947
IHP5042E1000AIAIRwith ducted air handler I4AH5E60E1B00T	3.5 tons41,500 Btu/h · Ducted	—	—	7.8	15.2	None	6	214783945
IHP5036E1000AIAIRwith ducted air handler I4AH5E36E1B00T	3 tons34,200 Btu/h · Ducted	—	—	7.8	15.2	None	10	214783942
IHP5030E1000AIAIRwith ducted air handler I4AH5E36E1B00T	2.5 tons28,200 Btu/h · Ducted	—	—	7.8	15.2	None	11	214783939

Shares hardware with

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

No shared hardware found for IAIR in this group.

Compare IAIR

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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