Live cool heat pump efficiency: 6 outdoor models compared

Live cool 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 Live cool makes. Live cool 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: 6
AHRI certifications: 6
Efficiency index: 52%; Typical model vs same-size, same-type peers (6 models)
Meet CEE 2025: 100%; 6 models

How Live cool 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.

Live cool against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Live cool’s own modelsLive cool is strongest on SEER2 (its typical model beats 68% of comparable models) and weakest on COP at 5°F (23%).

Live cool
Middle half of its models
Other ranked manufacturers

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

Average peer percentile of Live cool’s models
Rating	Beats comparable models	Rank	Raw median
Efficiency index6 models scored	52%	Not ranked	—
COP at 5°F6 models scored	23%	Not ranked	1.80
Capacity retention at 5°F6 models scored	50%	Not ranked	73%
HSPF26 models scored	47%	Not ranked	9.0
SEER26 models scored	68%	Not ranked	22.5
EER26 models scored	63%	Not ranked	12.8
Heating capacity at 5°F6 models scored	38%	Not ranked	8,900 Btu/h

Standards met

Share of Live cool’s models with at least one qualifying certification
Standard	Share	Models
CEE 2025 Tier 1 (Split ASHP)	100%	6
CEE 2026 Tier 1 (Split ASHP)	100%	6
CEE Advanced Tier (Split ASHP)	0%	0
Xcel Energy Colorado cold-climate ASHP (2025)	66.7%	4
DOE Cold Climate Heat Pump Challenge	0%	0
ENERGY STAR Cold Climate	66.7%	4

Sizes and duct types offered

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

Live cool’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

Live cool (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
Non-ducted, up to 1.5 tons	5	54%	22%	46%	72%
Non-ducted, 2 tons	1	46%	26%	50%	47%

Every Live cool model in the market

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

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

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

Dots: 6 live cool 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 Live cool 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 4 Live cool 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
1LWSM-12IR410AHS23Live cool · REXwith ductless indoor unit LWSM-12IR410AHS23	1 ton12,000 Btu/h · Non-ducted	76%	1.80	9.5	9,100	23.0	CEE 25CEE 26XcelES CC	1	218037240	Non-ducted, up to 1.5 tons	47.5
2LWSM-09IR410AHS23Live cool · REXwith ductless indoor unit LWSM-09IR410AHS23	1 ton9,000 Btu/h · Non-ducted	77%	1.80	9.2	7,300	23.5	CEE 25CEE 26XcelES CC	1	218037239	Non-ducted, up to 1.5 tons	45.8
3LWSM-09IR410AHS22LLive cool · REXwith ductless indoor unit LWSM-09IR410AHS22L	1 ton9,000 Btu/h · Non-ducted	74%	1.80	9.0	7,000	23.0	CEE 25CEE 26XcelES CC	1	218037237	Non-ducted, up to 1.5 tons	39.9
4LWSM-12IR410AHS22LLive cool · REXwith ductless indoor unit LWSM-12IR410AHS22L	1 ton12,000 Btu/h · Non-ducted	73%	1.80	9.0	8,700	22.0	CEE 25CEE 26XcelES CC	1	218037238	Non-ducted, up to 1.5 tons	39.1

All-around best

Top 5 Live cool 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
1LWSM-09IR410AHS23Live cool · REXwith ductless indoor unit LWSM-09IR410AHS23	1 ton9,000 Btu/h · Non-ducted	77%	1.80	9.2	23.5	13.0	CEE 25CEE 26XcelES CC	1	218037239	Non-ducted, up to 1.5 tons	60.6	45.8	75.4	45.8
2LWSM-12IR410AHS23Live cool · REXwith ductless indoor unit LWSM-12IR410AHS23	1 ton12,000 Btu/h · Non-ducted	76%	1.80	9.5	23.0	13.0	CEE 25CEE 26XcelES CC	1	218037240	Non-ducted, up to 1.5 tons	60.2	47.5	72.9	47.5
3LWSM-09IR410AHS22LLive cool · REXwith ductless indoor unit LWSM-09IR410AHS22L	1 ton9,000 Btu/h · Non-ducted	74%	1.80	9.0	23.0	12.5	CEE 25CEE 26XcelES CC	1	218037237	Non-ducted, up to 1.5 tons	51.3	39.9	62.7	39.9
4LWSM-18IR410AHS21.5Live cool · REXwith ductless indoor unit LWSM-18IR410AHS21.5	1.5 tons18,000 Btu/h · Non-ducted	66%	1.80	9.0	22.0	13.0	CEE 25CEE 26	1	218037241	Non-ducted, up to 1.5 tons	48.2	29.6	66.8	Not a pick
5LWSM-12IR410AHS22LLive cool · REXwith ductless indoor unit LWSM-12IR410AHS22L	1 ton12,000 Btu/h · Non-ducted	73%	1.80	9.0	22.0	12.5	CEE 25CEE 26XcelES CC	1	218037238	Non-ducted, up to 1.5 tons	47.9	39.1	56.7	39.1

Best model on each rating

Live cool’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	LWSM-24IR410AHS20	1.80	Non-ducted, 2 tons	26%	218037242
Capacity retention at 5°F	LWSM-09IR410AHS23	77%	Non-ducted, up to 1.5 tons	64%	218037239
HSPF2	LWSM-12IR410AHS23	9.5	Non-ducted, up to 1.5 tons	57%	218037240
SEER2	LWSM-09IR410AHS23	23.5	Non-ducted, up to 1.5 tons	79%	218037239
EER2	LWSM-09IR410AHS23	13.0	Non-ducted, up to 1.5 tons	68%	218037239
Heating capacity at 5°F	LWSM-18IR410AHS21.5	11,900 Btu/h	Non-ducted, up to 1.5 tons	66%	218037241

All 6 Live cool models in Explore

Live cool 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.

Live cool: 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	47.5(50 is the typical model of its size class)LWSM-12IR410AHS23with ductless indoor unit LWSM-12IR410AHS234 of 5 models qualify · AHRI 218037240	60.6(50 is the typical model of its size class)LWSM-09IR410AHS23with ductless indoor unit LWSM-09IR410AHS235 of 5 models have all five ratings · AHRI 218037239
Non-ducted, 2 tons	None on this board (0 of 1 models qualify)	46.0(50 is the typical model of its size class)LWSM-24IR410AHS20with ductless indoor unit LWSM-24IR410AHS201 of 1 models have all five ratings · AHRI 218037242

All-around board, every manufacturer

Newest Live cool certifications

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

The 5 most recently certified Live cool outdoor models
Outdoor model	Size · type	COP@5°F	Cap. 5/47	HSPF2	SEER2	Meets	Combos	AHRI ref.
LWSM-24IR410AHS20Live cool · REXwith ductless indoor unit LWSM-24IR410AHS20	2 tons23,000 Btu/h · Non-ducted	1.80	67%	9.0	20.0	CEE 25CEE 26	1	218037242
LWSM-18IR410AHS21.5Live cool · REXwith ductless indoor unit LWSM-18IR410AHS21.5	1.5 tons18,000 Btu/h · Non-ducted	1.80	66%	9.0	22.0	CEE 25CEE 26	1	218037241
LWSM-12IR410AHS23Live cool · REXwith ductless indoor unit LWSM-12IR410AHS23	1 ton12,000 Btu/h · Non-ducted	1.80	76%	9.5	23.0	CEE 25CEE 26XcelES CC	1	218037240
LWSM-09IR410AHS23Live cool · REXwith ductless indoor unit LWSM-09IR410AHS23	1 ton9,000 Btu/h · Non-ducted	1.80	77%	9.2	23.5	CEE 25CEE 26XcelES CC	1	218037239
LWSM-12IR410AHS22LLive cool · REXwith ductless indoor unit LWSM-12IR410AHS22L	1 ton12,000 Btu/h · Non-ducted	1.80	73%	9.0	22.0	CEE 25CEE 26XcelES CC	1	218037238

Shares hardware with

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

No shared hardware found for Live cool in this group.

Compare Live cool

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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