ROYALTON heat pump efficiency: 21 outdoor models compared

ROYALTON has 21 heat pump outdoor models certified with this refrigerant group, in 1,322 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 ROYALTON makes. ROYALTON 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: 21
AHRI certifications: 1,322
Efficiency index: 50%; Typical model vs same-size, same-type peers (11 models)
Meet CEE 2025: 19%; 4 models

How ROYALTON 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.

ROYALTON against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ROYALTON’s own modelsROYALTON is strongest on EER2 (its typical model beats 67% of comparable models) and weakest on capacity retention at 5°F (20%).

ROYALTON
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of ROYALTON’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index11 models scored	50%	Not ranked	—
COP at 5°F11 models scored	58%	Not ranked	2.18
Capacity retention at 5°F11 models scored	20%	Not ranked	50%
HSPF221 models scored	22%	Not ranked	6.7
SEER221 models scored	29%	Not ranked	15.2
EER221 models scored	67%	Not ranked	11.4
Heating capacity at 5°F11 models scored	20%	Not ranked	17,800 Btu/h

Standards met

Share of ROYALTON’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	19%	4
CEE 2026 Tier 1 (Split ASHP)	19%	4
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.

ROYALTON’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

ROYALTON (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	1	47%	73%	33%	30%
Ducted, 2 tons	4	45%	38%	17%	31%
Ducted, 2.5–3 tons	6	53%	62%	22%	29%
Ducted, 3.5–4.5 tons	9	48%	52%	18%	28%
Ducted, 5 tons and up	1	63%	90%	60%	27%

Every ROYALTON model in the market

ROYALTON’s 21 models with a known size and duct type, over the shape of the whole catalog.

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

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

Dots: 21 royalton 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 ROYALTON 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 ROYALTON model keeps at least 70% of its heat at 5°F with all three cold-climate ratings.

All-around best

Top 5 ROYALTON 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
14HP17L36P-**AROYALTON · 4HP17L Serieswith indoor coil EAD4X-48C+TDR and furnace 80G1DF110CE20	3 tons36,000 Btu/h · Ducted	53%	2.34	8.7	16.6	13.0	CEE 25CEE 26	232	213265391	Ducted, 2.5–3 tons	69.9	57.2	82.7	Not a pick
24HP17L48P-**AROYALTON · 4HP17L SERIESwith indoor coil EA(C;U)1P60C+TDR+TXV and furnace 80G2UH110CE20	4 tons48,000 Btu/h · Ducted	54%	2.38	8.3	15.6	13.0	None	228	210326789	Ducted, 3.5–4.5 tons	69.8	59.3	80.2	Not a pick
34HP17L42P-*AROYALTON · 4HP17L SERIESwith ducted air handler BCE7E42M4X	3.5 tons41,000 Btu/h · Ducted	55%	2.18	8.3	15.6	13.0	None	203	210326870	Ducted, 3.5–4.5 tons	68.3	56.4	80.2	Not a pick
44HP17L30P-**AROYALTON · 4HP17L Serieswith indoor coil EAD4X-42B+TDR and furnace 80G1DF090BE16	2.5 tons29,800 Btu/h · Ducted	49%	2.34	8.6	16.2	13.5	CEE 25CEE 26	198	213265370	Ducted, 2.5–3 tons	67.9	54.7	81.0	Not a pick
54HP17L60P-**AROYALTON · 4HP17 SERIESwith indoor coil EA(C;U)1P60C+TDR+TXV and furnace 80G2UH110CE20	5 tons57,500 Btu/h · Ducted	59%	2.36	8.3	14.7	12.2	None	60	212619797	Ducted, 5 tons and up	67.6	72.8	62.3	Not a pick

Best model on each rating

ROYALTON’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	4HP17L30P-**A	2.36	Ducted, 2.5–3 tons	90%	210327056
Capacity retention at 5°F	4HP17L60P-**A	59%	Ducted, 3.5–4.5 tons	37%	213859292
HSPF2	4HP17L48P-**A	8.5	Ducted, 3.5–4.5 tons	62%	210326760
SEER2	4HP17L36P-**A	16.8	Ducted, 2.5–3 tons	61%	213308812
EER2	4HP17L24P-**A	14.0	Ducted, 2 tons	99%	211735150
Heating capacity at 5°F	4HP17L60P-**A	32,000 Btu/h	Ducted, 5 tons and up	51%	212619793

All 21 ROYALTON models in Explore

ROYALTON 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.

ROYALTON: 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 1 models qualify)	53.6(50 is the typical model of its size class)4HP17L18P-**Awith indoor coil EAD4X-30/36B+TDR and furnace 92G1DF070BE121 of 1 models have all five ratings · AHRI 213265346
Ducted, 2 tons	None on this board (0 of 4 models qualify)	61.6(50 is the typical model of its size class)4HP17L24P-**Awith indoor coil EAD4X-30/36B+TDR and furnace 80G1DF090BE162 of 4 models have all five ratings · AHRI 213265357
Ducted, 2.5–3 tons	None on this board (0 of 6 models qualify)	69.9(50 is the typical model of its size class)4HP17L36P-**Awith indoor coil EAD4X-48C+TDR and furnace 80G1DF110CE203 of 6 models have all five ratings · AHRI 213265391
Ducted, 3.5–4.5 tons	None on this board (0 of 9 models qualify)	69.8(50 is the typical model of its size class)4HP17L48P-**Awith indoor coil EA(C;U)1P60C+TDR+TXV and furnace 80G2UH110CE204 of 9 models have all five ratings · AHRI 210326789
Ducted, 5 tons and up	None on this board (0 of 1 models qualify)	67.6(50 is the typical model of its size class)4HP17L60P-**Awith indoor coil EA(C;U)1P60C+TDR+TXV and furnace 80G2UH110CE201 of 1 models have all five ratings · AHRI 212619797

All-around board, every manufacturer

Newest ROYALTON certifications

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

The 5 most recently certified ROYALTON outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
4HP17L60P-*AROYALTON · 4HP17 Serieswith indoor coil 7EH51CX-0+TDR and furnace 97G2UH090CV12	4.5 tons53,500 Btu/h · Ducted	2.02	50%	7.5	14.4	None	60	214831719
4HP17L48P-*AROYALTON · 4HP17 Serieswith indoor coil 7EH60DX-0+TDR and furnace 97G2UH135DV20	4 tons48,000 Btu/h · Ducted	2.18	53%	8.1	15.2	None	228	214831713
4HP17L42P-*AROYALTON · 4HP17 Serieswith indoor coil 7EH48CX-0+TDR and furnace 97G2UH110CV20	3.5 tons41,000 Btu/h · Ducted	2.02	52%	7.5	14.7	None	203	214831690
4HP17L36P-*AROYALTON · 4HP17 Serieswith indoor coil 7EH51CX-0+TDR and furnace 97G2UH110CV20	3 tons36,000 Btu/h · Ducted	2.18	52%	8.1	16.2	CEE 25CEE 26	232	214831670
4HP17L30P-*AROYALTON · 4HP17 Serieswith indoor coil 7EH36CX-0+TDR and furnace 97G2UH110CV20	2.5 tons30,000 Btu/h · Ducted	2.22	52%	8.5	15.2	CEE 25CEE 26	198	214831650

Shares hardware with

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No shared hardware found for ROYALTON in this group.

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Manufacturers of a similar size, side by side.

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