Brothers heat pump efficiency: 8 outdoor models compared

Brothers has 8 heat pump outdoor models certified with this refrigerant group, in 25 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 Brothers makes. Brothers 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 11, 2026updated Oct 11, 2026 · sources

Outdoor models: 8
AHRI certifications: 25
Efficiency index: —; No model has all five ratings
Meet CEE 2025: 0%; 0 models

How Brothers 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.

Brothers against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Brothers’s own modelsBrothers is strongest on EER2 (its typical model beats 56% of comparable models) and weakest on SEER2 (17%).

Brothers
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of Brothers’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index0 models scored	—	Not ranked	—
COP at 5°F0 models scored	—	Not ranked	—
Capacity retention at 5°F0 models scored	—	Not ranked	—
HSPF28 models scored	24%	Not ranked	7.5
SEER28 models scored	17%	Not ranked	14.3
EER28 models scored	56%	Not ranked	11.6
Heating capacity at 5°F0 models scored	—	Not ranked	—

Standards met

Share of Brothers’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.

Brothers’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

Brothers (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	2	—	—	12%	10%
Ducted, 2 tons	2	—	—	28%	22%
Ducted, 2.5–3 tons	4	—	—	27%	17%

Every Brothers model in the market

Brothers’s 8 models with a known size and duct type, over the shape of the whole catalog.

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

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

Dots: 8 brothers 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 Brothers 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 Brothers model keeps at least 70% of its heat at 5°F with all three cold-climate ratings.

All-around best

No Brothers model has all five all-around ratings.

Best model on each rating

Brothers’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	—	—	—	—	—
Capacity retention at 5°F	—	—	—	—	—
HSPF2	BRO-24HN5	7.8	Ducted, 2 tons	27%	211726999
SEER2	BRO-24HN5	15.2	Ducted, 2 tons	24%	211726999
EER2	BRO-30HN5	11.7	Ducted, 2.5–3 tons	67%	211727001
Heating capacity at 5°F	—	—	—	—	—

All 8 Brothers models in Explore

Brothers 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.

Brothers: 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 2 models qualify)	None on this board (0 of 2 models have all five ratings)
Ducted, 2 tons	None on this board (0 of 2 models qualify)	None on this board (0 of 2 models have all five ratings)
Ducted, 2.5–3 tons	None on this board (0 of 4 models qualify)	None on this board (0 of 4 models have all five ratings)

All-around board, every manufacturer

Newest Brothers certifications

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

The 5 most recently certified Brothers outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
BRO-36HN6Brotherswith ducted air handler BRO-36AHFR106	3 tons33,000 Btu/h · Ducted	—	—	7.5	14.3	None	2	215382953
BRO-30HN6Brotherswith ducted air handler BRO-30AHFR56	2.5 tons28,000 Btu/h · Ducted	—	—	7.5	14.3	None	3	215382952
BRO-24HN6Brotherswith ducted air handler BRO-24AHFR86	2 tons23,600 Btu/h · Ducted	—	—	7.5	14.3	None	3	215382950
BRO-18HN6Brotherswith ducted air handler BRO-18AHFR56	1.5 tons17,500 Btu/h · Ducted	—	—	7.5	14.3	None	2	215382948
BRO-30HN5Brotherswith ducted air handler BRO-30AHFR5	2.5 tons28,000 Btu/h · Ducted	—	—	7.5	14.7	None	4	214833575

Shares hardware with

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

No shared hardware found for Brothers in this group.

Compare Brothers

Manufacturers of a similar size, side by side.

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