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ENVIAIR heat pump efficiency: 14 outdoor models compared

ENVIAIR has 14 heat pump outdoor models certified with this refrigerant group, in 20 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 ENVIAIR makes. ENVIAIR 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 updated · sources

Outdoor models
14
AHRI certifications
20
Efficiency index
53%
Typical model vs same-size, same-type peers (17 models)
Meet CEE 2025
85.7%
12 models

How ENVIAIR 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.
ENVIAIR against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ENVIAIR’s own modelsENVIAIR is strongest on heating capacity at 5°F (its typical model beats 62% of comparable models) and weakest on HSPF2 (42%).
  • ENVIAIR
  • Middle half of its models
  • Other ranked manufacturers
ENVIAIR

Source: AHRI Directory, NEEP · as of

Average peer percentile of ENVIAIR’s models
RatingBeats comparable modelsRankRaw median
Efficiency index17 models scored53%Not ranked—
COP at 5°F17 models scored44%Not ranked1.83
Capacity retention at 5°F17 models scored60%Not ranked85%
HSPF217 models scored42%Not ranked8.8
SEER217 models scored57%Not ranked20.0
EER217 models scored57%Not ranked12.0
Heating capacity at 5°F17 models scored62%Not ranked16,850 Btu/h

Standards met

Share of ENVIAIR’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)85.7%12
CEE 2026 Tier 1 (Split ASHP)85.7%12
CEE Advanced Tier (Split ASHP)14.3%2
Xcel Energy Colorado cold-climate ASHP (2025)85.7%12
DOE Cold Climate Heat Pump Challenge14.3%2
ENERGY STAR Cold Climate0%0

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
ENVIAIR’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
  • ENVIAIR (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsNon-ducted, up to 1.5 tons1.953,455 modelsNon-ducted, 2 tons2.00863 modelsNon-ducted, 2.5–3 tons2.001,106 modelsNon-ducted, 3.5–4.5 tons2.00564 modelsmedian

Source: AHRI Directory · as of

Share of comparable models beaten, per peer group
Size and duct typeModelsIndexCOP@5°FHSPF2SEER2
Ducted, 2.5–3 tons252%27%51%56%
Ducted, 3.5–4.5 tons360%49%56%72%
Non-ducted, up to 1.5 tons751%38%38%56%
Non-ducted, 2 tons251%10%41%62%
Non-ducted, 2.5–3 tons165%88%59%49%
Non-ducted, 3.5–4.5 tons246%89%22%37%

Every ENVIAIR model in the market

ENVIAIR’s 17 models with a known size and duct type, over the shape of the whole catalog.
ENVIAIR models by size and ratingColoured: ENVIAIR · grey shapes: all 14,508 models · lines: catalog medians by size
  • ENVIAIR models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 17 enviair 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, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons8261.641.711.751.852.24
Ducted, 1 ton4071.801.902.052.412.45
Ducted, 1.5 tons9921.751.862.002.172.40
Ducted, 2 tons9991.751.862.002.182.30
Ducted, 2.5 tons1,0401.701.802.002.102.36
Ducted, 3 tons6961.801.902.002.102.42
Ducted, 3.5 tons8641.701.802.002.102.46
Ducted, 4 tons7271.801.862.002.122.40
Ducted, 4.5 tons6901.701.801.902.102.20
Ducted, 5 tons861.892.002.102.102.10
Non-ducted, 0.5 tons1,1861.751.801.902.002.22
Non-ducted, 1 ton1,3431.801.801.992.102.21
Non-ducted, 1.5 tons1,2611.801.802.002.102.31
Non-ducted, 2 tons7611.801.982.002.102.30
Non-ducted, 2.5 tons4031.801.852.002.002.10
Non-ducted, 3 tons4731.901.982.002.032.20
Non-ducted, 3.5 tons2802.002.002.002.052.10
Non-ducted, 4 tons2041.962.002.052.102.11
Non-ducted, 4.5 tons781.901.911.952.012.01
Non-ducted, 5 tons841.992.002.052.202.20

Source: AHRI Directory · as of

Top ENVIAIR 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 ENVIAIR 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 modelSize · typeCap. 5/47COP@5°FHSPF2Btu/h @5°FSEER2MeetsCombosAHRI ref.Compared withScore
1EMSO30S9AY230AENVIAIRwith ductless indoor unit EMSI30S9AY230A1 ton9,100 Btu/h · Non-ducted108%2.1111.211,50030.0CEE 25CEE 26CEE AdvXcelDOE1218472370Non-ducted, up to 1.5 tons87.2
2EMSO21M36ZE230AENVIAIR3 tons36,000 Btu/h · Non-ducted100%2.1010.036,00021.0CEE 25CEE 26CEE AdvXcelDOE3218472374Non-ducted, 2.5–3 tons77.2
3EMSO28S12AY230AENVIAIRwith ductless indoor unit EMSI28S12AY230A1 ton12,000 Btu/h · Non-ducted100%2.0010.012,20029.5CEE 25CEE 26Xcel1218472371Non-ducted, up to 1.5 tons72.1
4ECSO19A60FLU230AENVIAIRwith ducted air handler ESCI19A-C60FL230A4.5 tons52,000 Btu/h · Ducted100%1.809.054,00016.0CEE 25CEE 261218471537Ducted, 3.5–4.5 tons63.1
5EMSO27S24AY230AENVIAIRwith ductless indoor unit EMSI27S24AY230A2 tons22,000 Btu/h · Non-ducted100%1.8010.024,00027.0CEE 25CEE 26Xcel1218472372Non-ducted, 2 tons60.1

All-around best

Top 5 ENVIAIR 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 modelSize · typeCap. 5/47COP@5°FHSPF2SEER2EER2MeetsCombosAHRI ref.Compared withScoreHeating halfCooling halfCold-climate score
1EMSO30S9AY230AENVIAIRwith ductless indoor unit EMSI30S9AY230A1 ton9,100 Btu/h · Non-ducted108%2.1111.230.016.8CEE 25CEE 26CEE AdvXcelDOE1218472370Non-ducted, up to 1.5 tons92.687.297.987.2
2EMSO28S12AY230AENVIAIRwith ductless indoor unit EMSI28S12AY230A1 ton12,000 Btu/h · Non-ducted100%2.0010.029.515.2CEE 25CEE 26Xcel1218472371Non-ducted, up to 1.5 tons84.372.196.672.1
3EMSO27S24AY230AENVIAIRwith ductless indoor unit EMSI27S24AY230A2 tons22,000 Btu/h · Non-ducted100%1.8010.027.014.0CEE 25CEE 26Xcel1218472372Non-ducted, 2 tons78.160.196.160.1
4EMSO28S18AY230AENVIAIRwith ductless indoor unit EMSI28S18AY230A1.5 tons18,000 Btu/h · Non-ducted97%1.8010.027.514.3CEE 25CEE 26Xcel1218472373Non-ducted, up to 1.5 tons73.855.492.155.4
5EMSO21M60ZE230AENVIAIR4.5 tons55,000 Btu/h · Ducted56%2.308.019.011.7CEE 25CEE 263218472381Ducted, 3.5–4.5 tons67.655.180.2Not a pick

Best model on each rating

ENVIAIR’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FEMSO21M60ZE230A2.20Non-ducted, 3.5–4.5 tons96%218472382
Capacity retention at 5°FEMSO27S24AY230A100%Non-ducted, 2 tons94%218472372
HSPF2EMSO30S9AY230A11.2Non-ducted, up to 1.5 tons87%218472370
SEER2EMSO27S24AY230A27.0Non-ducted, 2 tons99%218472372
EER2EMSO30S9AY230A16.8Non-ducted, up to 1.5 tons98%218472370
Heating capacity at 5°FECSO19A60FLU230A54,000 Btu/hDucted, 3.5–4.5 tons98%218471537

All 14 ENVIAIR models in Explore

ENVIAIR 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.
ENVIAIR: 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 typeCold-climate pickCold-climate score, best modelAll-around bestAll-around score, best model
Ducted, 2.5–3 tons52.5(50 is the typical model of its size class)EMSO21M36ZE230A2 of 2 models qualify · AHRI 21847237559.1(50 is the typical model of its size class)EMSO21M36ZE230A2 of 2 models have all five ratings · AHRI 218472375
Ducted, 3.5–4.5 tons63.1(50 is the typical model of its size class)ECSO19A60FLU230Awith ducted air handler ESCI19A-C60FL230A2 of 3 models qualify · AHRI 21847153767.6(50 is the typical model of its size class)EMSO21M60ZE230A3 of 3 models have all five ratings · AHRI 218472381
Non-ducted, up to 1.5 tons87.2(50 is the typical model of its size class)EMSO30S9AY230Awith ductless indoor unit EMSI30S9AY230A7 of 7 models qualify · AHRI 21847237092.6(50 is the typical model of its size class)EMSO30S9AY230Awith ductless indoor unit EMSI30S9AY230A7 of 7 models have all five ratings · AHRI 218472370
Non-ducted, 2 tons60.1(50 is the typical model of its size class)EMSO27S24AY230Awith ductless indoor unit EMSI27S24AY230A2 of 2 models qualify · AHRI 21847237278.1(50 is the typical model of its size class)EMSO27S24AY230Awith ductless indoor unit EMSI27S24AY230A2 of 2 models have all five ratings · AHRI 218472372
Non-ducted, 2.5–3 tons77.2(50 is the typical model of its size class)EMSO21M36ZE230A1 of 1 models qualify · AHRI 21847237464.5(50 is the typical model of its size class)EMSO21M36ZE230A1 of 1 models have all five ratings · AHRI 218472374
Non-ducted, 3.5–4.5 tons54.8(50 is the typical model of its size class)EMSO21M48ZE230A1 of 2 models qualify · AHRI 21847237755.5(50 is the typical model of its size class)EMSO21M48ZE230A2 of 2 models have all five ratings · AHRI 218472377

All-around board, every manufacturer

Newest ENVIAIR certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified ENVIAIR outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
EMSO21M60ZE230AENVIAIR4.5 tons55,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)2.2058%9.020.0CEE 25CEE 263218472382
EMSO21M48ZE230AENVIAIR4 tons48,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8477%9.019.0CEE 25CEE 26Xcel3218472379
EMSO21M36ZE230AENVIAIR3 tons36,000 Btu/h · Ducted and non-ducted and mixed (multi-zone)1.8494%9.019.0CEE 25CEE 26CEE AdvXcelDOE3218472376
EMSO28S18AY230AENVIAIRwith ductless indoor unit EMSI28S18AY230A1.5 tons18,000 Btu/h · Non-ducted1.8097%10.027.5CEE 25CEE 26Xcel1218472373
EMSO27S24AY230AENVIAIRwith ductless indoor unit EMSI27S24AY230A2 tons22,000 Btu/h · Non-ducted1.80100%10.027.0CEE 25CEE 26Xcel1218472372

Shares hardware with

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

No shared hardware found for ENVIAIR in this group.

Compare ENVIAIR

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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