Stelpro heat pump efficiency: 32 outdoor models compared

Stelpro has 32 heat pump outdoor models certified with this refrigerant group, in 91 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 Stelpro makes. Stelpro 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: 32
AHRI certifications: 91
Efficiency index: 67%; Typical model vs same-size, same-type peers (46 models)
Meet CEE 2025: 87.5%; 28 models

How Stelpro 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.

Stelpro against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Stelpro’s own modelsStelpro is strongest on HSPF2 (its typical model beats 78% of comparable models) and weakest on COP at 5°F (51%).

Stelpro
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of Stelpro’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index46 models scored	67%	Not ranked	—
COP at 5°F46 models scored	51%	Not ranked	1.99
Capacity retention at 5°F46 models scored	77%	Not ranked	94%
HSPF246 models scored	78%	Not ranked	10.2
SEER246 models scored	67%	Not ranked	20.8
EER246 models scored	62%	Not ranked	12.0
Heating capacity at 5°F46 models scored	76%	Not ranked	25,600 Btu/h

Standards met

Share of Stelpro’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	87.5%	28
CEE 2026 Tier 1 (Split ASHP)	87.5%	28
CEE Advanced Tier (Split ASHP)	0%	0
Xcel Energy Colorado cold-climate ASHP (2025)	93.8%	30
DOE Cold Climate Heat Pump Challenge	0%	0
ENERGY STAR Cold Climate	78.1%	25

Sizes and duct types offered

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

Stelpro’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

Stelpro (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	5	79%	59%	88%	80%
Ducted, 2 tons	3	60%	43%	85%	59%
Ducted, 2.5–3 tons	8	68%	45%	86%	68%
Ducted, 3.5–4.5 tons	8	64%	46%	79%	70%
Non-ducted, up to 1.5 tons	11	63%	52%	69%	63%
Non-ducted, 2 tons	3	55%	67%	55%	45%
Non-ducted, 2.5–3 tons	4	76%	53%	85%	76%
Non-ducted, 3.5–4.5 tons	4	67%	52%	82%	70%

Every Stelpro model in the market

Stelpro’s 46 models with a known size and duct type, over the shape of the whole catalog.

Stelpro models by size and ratingColoured: Stelpro · grey shapes: all 14,508 models · lines: catalog medians by size

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

Dots: 46 stelpro models, each through its representative certification, in the colour of the rating shown. The grey shapes count all 14,508 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	826	1.64	1.71	1.75	1.85	2.24
Ducted, 1 ton	407	1.80	1.90	2.05	2.41	2.45
Ducted, 1.5 tons	992	1.75	1.86	2.00	2.17	2.40
Ducted, 2 tons	999	1.75	1.86	2.00	2.18	2.30
Ducted, 2.5 tons	1,040	1.70	1.80	2.00	2.10	2.36
Ducted, 3 tons	696	1.80	1.90	2.00	2.10	2.42
Ducted, 3.5 tons	865	1.70	1.80	2.00	2.10	2.46
Ducted, 4 tons	726	1.80	1.86	2.00	2.12	2.41
Ducted, 4.5 tons	690	1.70	1.80	1.90	2.10	2.20
Ducted, 5 tons	86	1.89	2.00	2.10	2.10	2.10
Non-ducted, 0.5 tons	1,186	1.75	1.80	1.90	2.00	2.22
Non-ducted, 1 ton	1,343	1.80	1.80	1.99	2.10	2.21
Non-ducted, 1.5 tons	1,261	1.80	1.80	2.00	2.10	2.31
Non-ducted, 2 tons	761	1.80	1.98	2.00	2.10	2.30
Non-ducted, 2.5 tons	403	1.80	1.85	2.00	2.00	2.10
Non-ducted, 3 tons	473	1.90	1.98	2.00	2.03	2.20
Non-ducted, 3.5 tons	280	2.00	2.00	2.00	2.05	2.10
Non-ducted, 4 tons	204	1.96	2.00	2.05	2.10	2.11
Non-ducted, 4.5 tons	78	1.90	1.91	1.95	2.01	2.01
Non-ducted, 5 tons	84	1.99	2.00	2.05	2.20	2.20

Source: AHRI Directory · as of Oct 11, 2026

Top Stelpro 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

Top 5 Stelpro cold-climate picks across sizes. 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.
# · Outdoor model	Size · type	Cap. 5/47	COP@5°F	HSPF2	Btu/h @5°F	SEER2	Meets	Combos	AHRI ref.	Compared with	Score
1SEPB-H24A-OStelpro · SICB1 Serieswith ductless indoor unit SICB1-H24A-I	2 tons23,400 Btu/h · Non-ducted	95%	2.23	11.6	23,800	20.7	CEE 25CEE 26XcelES CC	3	216082332	Non-ducted, 2 tons	89.4
2SEPB-H24A-OStelpro · SFCB1 Serieswith ducted air handler SFCB1-H24A-I	2 tons24,000 Btu/h · Ducted	92%	2.18	11.7	24,000	19.0	CEE 25CEE 26XcelES CC	3	216082339	Ducted, 2 tons	85.7
3SMZ5B1-H48A-OStelpro · SMZ SeriesAlso listed as SMZ5B1V-H48A-O	4 tons47,000 Btu/h · Ducted	100%	2.00	11.0	48,000	20.4	CEE 25CEE 26XcelES CC	3	216617680	Ducted, 3.5–4.5 tons	82.7
4SMZ4B1-H36A-OStelpro · SMZ SeriesAlso listed as SMZ4B1V-H36A-O	3 tons36,000 Btu/h · Ducted	106%	2.00	10.4	38,000	19.4	CEE 25CEE 26XcelES CC	3	216617677	Ducted, 2.5–3 tons	82.5
5SELB-H09A-OStelpro · Elite Bwith ductless indoor unit SELB-H09A-I	1 ton9,000 Btu/h · Non-ducted	100%	2.09	11.0	9,000	25.0	CEE 25CEE 26XcelES CC	1	216445285	Non-ducted, up to 1.5 tons	82.4

All-around best

Top 5 Stelpro 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
1SEPB-H09A-OStelpro · SFCB1 Serieswith ducted air handler SFCB1-H09A-I	1 ton9,000 Btu/h · Ducted	120%	1.85	13.8	20.5	14.0	CEE 25CEE 26XcelES CC	3	216082334	Ducted, up to 1.5 tons	86.5	79.9	93.2	79.9
2SELB-H09A-OStelpro · Elite Bwith ductless indoor unit SELB-H09A-I	1 ton9,000 Btu/h · Non-ducted	100%	2.09	11.0	25.0	13.7	CEE 25CEE 26XcelES CC	1	216445285	Non-ducted, up to 1.5 tons	83.9	82.4	85.4	82.4
3SMZ5B1-H48A-OStelpro · SMZ SeriesAlso listed as SMZ5B1V-H48A-O	4 tons47,000 Btu/h · Ducted	100%	2.00	11.0	20.4	11.7	CEE 25CEE 26XcelES CC	3	216617680	Ducted, 3.5–4.5 tons	83.9	82.7	85.1	82.7
4SMZ4B1-H36A-OStelpro · SMZ SeriesAlso listed as SMZ4B1V-H36A-O	3 tons36,000 Btu/h · Ducted	106%	2.00	10.4	19.4	12.0	CEE 25CEE 26XcelES CC	3	216617677	Ducted, 2.5–3 tons	83.6	82.5	84.8	82.5
5SMZ5B1-H55A-OStelpro · SMZ SeriesAlso listed as SMZ5B1V-H55A-O	4.5 tons53,000 Btu/h · Ducted	87%	2.10	10.7	20.0	11.7	CEE 25CEE 26XcelES CC	3	216617683	Ducted, 3.5–4.5 tons	82.0	81.2	82.8	81.2

Best model on each rating

Stelpro’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	SEPB-H24A-O	2.34	Non-ducted, 2 tons	94%	216082326
Capacity retention at 5°F	SEPB-H09A-O	120%	Ducted, up to 1.5 tons	98%	216082334
HSPF2	SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O	11.0	Ducted, 3.5–4.5 tons	99%	216617680
SEER2	SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O	20.4	Ducted, 3.5–4.5 tons	96%	216617680
EER2	SEPB-H09A-O	14.0	Ducted, up to 1.5 tons	95%	216082334
Heating capacity at 5°F	SMZ2B1-H18A-OAlso listed as SMZ2B1V-H18A-O	19,000 Btu/h	Non-ducted, up to 1.5 tons	97%	216617670

All 32 Stelpro models in Explore

Stelpro 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.

Stelpro: 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	82.3(50 is the typical model of its size class)SEPB-H18A-Owith ducted air handler SFCB1-H18A-I5 of 5 models qualify · AHRI 216082337	86.5(50 is the typical model of its size class)SEPB-H09A-Owith ducted air handler SFCB1-H09A-I5 of 5 models have all five ratings · AHRI 216082334
Ducted, 2 tons	85.7(50 is the typical model of its size class)SEPB-H24A-Owith ducted air handler SFCB1-H24A-I3 of 3 models qualify · AHRI 216082339	78.4(50 is the typical model of its size class)SEPB-H24A-Owith ducted air handler SFCB1-H24A-I3 of 3 models have all five ratings · AHRI 216082339
Ducted, 2.5–3 tons	82.5(50 is the typical model of its size class)SMZ4B1-H36A-OAlso listed as SMZ4B1V-H36A-O8 of 8 models qualify · AHRI 216617677	83.6(50 is the typical model of its size class)SMZ4B1-H36A-OAlso listed as SMZ4B1V-H36A-O8 of 8 models have all five ratings · AHRI 216617677
Ducted, 3.5–4.5 tons	82.7(50 is the typical model of its size class)SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O8 of 8 models qualify · AHRI 216617680	83.9(50 is the typical model of its size class)SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O8 of 8 models have all five ratings · AHRI 216617680
Non-ducted, up to 1.5 tons	82.4(50 is the typical model of its size class)SELB-H09A-Owith ductless indoor unit SELB-H09A-I9 of 11 models qualify · AHRI 216445285	83.9(50 is the typical model of its size class)SELB-H09A-Owith ductless indoor unit SELB-H09A-I11 of 11 models have all five ratings · AHRI 216445285
Non-ducted, 2 tons	89.4(50 is the typical model of its size class)SEPB-H24A-Owith ductless indoor unit SICB1-H24A-I3 of 3 models qualify · AHRI 216082332	76.4(50 is the typical model of its size class)SEPB-H24A-Owith ductless indoor unit SEPB-H24A-I3 of 3 models have all five ratings · AHRI 216082326
Non-ducted, 2.5–3 tons	78.0(50 is the typical model of its size class)SMZ4B1-H36A-OAlso listed as SMZ4B1V-H36A-O4 of 4 models qualify · AHRI 216617678	78.3(50 is the typical model of its size class)SMZ4B1-H36A-OAlso listed as SMZ4B1V-H36A-O4 of 4 models have all five ratings · AHRI 216617676
Non-ducted, 3.5–4.5 tons	73.4(50 is the typical model of its size class)SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O4 of 4 models qualify · AHRI 216617681	75.6(50 is the typical model of its size class)SMZ5B1-H48A-OAlso listed as SMZ5B1V-H48A-O4 of 4 models have all five ratings · AHRI 216617679

All-around board, every manufacturer

Newest Stelpro certifications

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

The 5 most recently certified Stelpro outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
SDB1-H60A-OStelpro · SDB Serieswith indoor coil SMCB1-H60A2128-I and furnace C120-M-V	4.5 tons52,000 Btu/h · Ducted	1.80	79%	8.5	15.7	CEE 25CEE 26XcelES CC	5	217618181
SDB1-H48A-OStelpro · SDB Serieswith indoor coil SMCB1-H60A2128-I and furnace C120-M-V	4 tons45,000 Btu/h · Ducted	1.75	89%	8.5	15.2	CEE 25CEE 26XcelES CC	5	217618179
SDB1-H36A-OStelpro · SDB Serieswith indoor coil SACB1-H36A2124-I and furnace C120-M-V	3 tons35,000 Btu/h · Ducted	1.90	89%	9.3	15.2	CEE 25CEE 26XcelES CC	8	217618177
SDB1-H30A-OStelprowith indoor coil SACB1-H36A1724-I and furnace C75-2-V	2.5 tons29,000 Btu/h · Ducted	1.75	97%	8.4	14.9	CEE 25CEE 26XcelES CC	6	217618173
SDB1-H24A-OStelpro · SDB Serieswith indoor coil SACB1-H24A1718-I and furnace C75-2-V	2 tons24,000 Btu/h · Ducted	1.80	88%	9.1	15.3	CEE 25CEE 26XcelES CC	7	217618171

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Custom Comfort39 shared families

Compare Stelpro

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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