Skip to content
Rebate.Blue

Gridless heat pump efficiency: 15 outdoor models compared

Gridless has 15 heat pump outdoor models certified with this refrigerant group, in 28 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 Gridless makes. Gridless 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
15
AHRI certifications
28
Efficiency index
70%
Typical model vs same-size, same-type peers (15 models)
Meet CEE 2025
100%
15 models

How Gridless 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.
Gridless against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Gridless’s own modelsGridless is strongest on SEER2 (its typical model beats 73% of comparable models) and weakest on HSPF2 (62%).
  • Gridless
  • Middle half of its models
  • Other ranked manufacturers
Gridless

Source: AHRI Directory, NEEP · as of

Average peer percentile of Gridless’s models
RatingBeats comparable modelsRankRaw median
Efficiency index15 models scored70%Not ranked—
COP at 5°F15 models scored64%Not ranked2.09
Capacity retention at 5°F15 models scored73%Not ranked88%
HSPF215 models scored62%Not ranked9.5
SEER215 models scored73%Not ranked22.0
EER215 models scored73%Not ranked12.3
Heating capacity at 5°F15 models scored66%Not ranked18,000 Btu/h

Standards met

Share of Gridless’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)100%15
CEE 2026 Tier 1 (Split ASHP)100%15
CEE Advanced Tier (Split ASHP)13.3%2
Xcel Energy Colorado cold-climate ASHP (2025)100%15
DOE Cold Climate Heat Pump Challenge13.3%2
ENERGY STAR Cold Climate100%15

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Gridless’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
  • Gridless (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, 2 tons2.001,090 modelsDucted, 2.5–3 tons2.001,909 modelsDucted, 3.5–4.5 tons2.002,224 modelsDucted, 5 tons and up2.00321 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 tons147%93%40%37%
Ducted, 2.5–3 tons165%90%46%51%
Ducted, 3.5–4.5 tons182%94%73%87%
Ducted, 5 tons and up181%98%74%97%
Non-ducted, up to 1.5 tons777%72%74%79%
Non-ducted, 2 tons161%51%44%70%
Non-ducted, 2.5–3 tons263%12%59%67%
Non-ducted, 3.5–4.5 tons144%7%14%73%

Every Gridless model in the market

Gridless’s 15 models with a known size and duct type, over the shape of the whole catalog.
Gridless models by size and ratingColoured: Gridless · grey shapes: all 14,508 models · lines: catalog medians by size
  • Gridless models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 15 gridless 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 Gridless 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 Gridless 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
1GRID09OHHVGridless · HYPER HEAT SINGLE ZONEwith ductless indoor unit GRID09WHHV1 ton9,000 Btu/h · Non-ducted100%2.2511.812,20032.0CEE 25CEE 26CEE AdvXcelDOEES CC1217101973Non-ducted, up to 1.5 tons89.7
2GRID12OHHVGridless · HYPER HEAT SINGLE ZONEwith ductless indoor unit GRID12WHHV1 ton12,000 Btu/h · Non-ducted100%2.2511.812,20030.0CEE 25CEE 26CEE AdvXcelDOEES CC1217101974Non-ducted, up to 1.5 tons89.7
3GRID60OCGridless · Gridless CENTRALwith ducted air handler GRID60VAH5 tons57,000 Btu/h · Ducted75%2.429.042,50019.0CEE 25CEE 26XcelES CC4217115270Ducted, 5 tons and up88.7
4GRID36OCGridless · Gridless CENTRALwith ducted air handler GRID36VAH2.5 tons32,000 Btu/h · Ducted97%2.1510.531,00019.5CEE 25CEE 26XcelES CC4217115268Ducted, 2.5–3 tons87.9
5GRID09OHVGridless · ENTRY LEVEL SINGLE ZONEwith ductless indoor unit GRID09WHV1 ton9,000 Btu/h · Non-ducted100%2.0911.09,00025.0CEE 25CEE 26XcelES CC1217101975Non-ducted, up to 1.5 tons82.4

All-around best

Top 5 Gridless 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
1GRID09OHHVGridless · HYPER HEAT SINGLE ZONEwith ductless indoor unit GRID09WHHV1 ton9,000 Btu/h · Non-ducted100%2.2511.832.018.4CEE 25CEE 26CEE AdvXcelDOEES CC1217101973Non-ducted, up to 1.5 tons94.589.799.389.7
2GRID12OHHVGridless · HYPER HEAT SINGLE ZONEwith ductless indoor unit GRID12WHHV1 ton12,000 Btu/h · Non-ducted100%2.2511.830.015.4CEE 25CEE 26CEE AdvXcelDOEES CC1217101974Non-ducted, up to 1.5 tons93.489.797.189.7
3GRID15OHHVGridless · HYPER HEAT SINGLE ZONEwith ductless indoor unit GRID15WHHV1.5 tons15,000 Btu/h · Non-ducted80%2.2511.125.613.7CEE 25CEE 26XcelES CC1217117997Non-ducted, up to 1.5 tons84.280.787.780.7
4GRID09OHVGridless · ENTRY LEVEL SINGLE ZONEwith ductless indoor unit GRID09WHV1 ton9,000 Btu/h · Non-ducted100%2.0911.025.013.7CEE 25CEE 26XcelES CC1217101975Non-ducted, up to 1.5 tons83.982.485.482.4
5GRID36OCGridless · Gridless CENTRALwith ducted air handler GRID36VAH2.5 tons32,000 Btu/h · Ducted97%2.1510.519.511.7CEE 25CEE 26XcelES CC4217115268Ducted, 2.5–3 tons82.387.976.787.9

Best model on each rating

Gridless’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FGRID60OC2.42Ducted, 5 tons and up98%217115270
Capacity retention at 5°FGRID60OC75%Ducted, 5 tons and up94%217115270
HSPF2GRID36OC10.5Ducted, 2.5–3 tons96%217115268
SEER2GRID09OHHV32.0Non-ducted, up to 1.5 tons99%217101973
EER2GRID09OHHV18.4Non-ducted, up to 1.5 tons100%217101973
Heating capacity at 5°FGRID18OHV18,000 Btu/hNon-ducted, up to 1.5 tons93%217101977

All 15 Gridless models in Explore

Gridless 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.
Gridless: 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 tons82.1(50 is the typical model of its size class)GRID24OCwith ducted air handler GRID24VAH1 of 1 models qualify · AHRI 21711526779.5(50 is the typical model of its size class)GRID24OCwith ducted air handler GRID24VAH1 of 1 models have all five ratings · AHRI 217115267
Ducted, 2.5–3 tons87.9(50 is the typical model of its size class)GRID36OCwith ducted air handler GRID36VAH1 of 1 models qualify · AHRI 21711526882.3(50 is the typical model of its size class)GRID36OCwith ducted air handler GRID36VAH1 of 1 models have all five ratings · AHRI 217115268
Ducted, 3.5–4.5 tons77.3(50 is the typical model of its size class)GRID48OCwith ducted air handler GRID48VAH1 of 1 models qualify · AHRI 21711526982.3(50 is the typical model of its size class)GRID48OCwith ducted air handler GRID48VAH1 of 1 models have all five ratings · AHRI 217115269
Ducted, 5 tons and up88.7(50 is the typical model of its size class)GRID60OCwith ducted air handler GRID60VAH1 of 1 models qualify · AHRI 21711527081.1(50 is the typical model of its size class)GRID60OCwith ducted air handler GRID60VAH1 of 1 models have all five ratings · AHRI 217115270
Non-ducted, up to 1.5 tons89.7(50 is the typical model of its size class)GRID09OHHVwith ductless indoor unit GRID09WHHV7 of 7 models qualify · AHRI 21710197394.5(50 is the typical model of its size class)GRID09OHHVwith ductless indoor unit GRID09WHHV7 of 7 models have all five ratings · AHRI 217101973
Non-ducted, 2 tons54.1(50 is the typical model of its size class)GRID24OHVwith ductless indoor unit GRID24WHV1 of 1 models qualify · AHRI 21710197861.3(50 is the typical model of its size class)GRID24OHVwith ductless indoor unit GRID24WHV1 of 1 models have all five ratings · AHRI 217101978
Non-ducted, 2.5–3 tons53.7(50 is the typical model of its size class)GRID36OM42 of 2 models qualify · AHRI 21712326464.2(50 is the typical model of its size class)GRID24OM32 of 2 models have all five ratings · AHRI 217123263
Non-ducted, 3.5–4.5 tons16.4(50 is the typical model of its size class)GRID48OM51 of 1 models qualify · AHRI 21712326543.7(50 is the typical model of its size class)GRID48OM51 of 1 models have all five ratings · AHRI 217123265

All-around board, every manufacturer

Newest Gridless certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Gridless outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
GRID48OCGridlesswith ducted air handler (H,D)E36*60+TXV+TD4 tons48,000 Btu/h · Ducted1.9070%8.316.0CEE 25CEE 26XcelES CC5218644484
GRID24OCGridlesswith ducted air handler (H,D)E32*36+TXV+TD2 tons24,000 Btu/h · Ducted1.9486%8.116.0CEE 25CEE 26XcelES CC4218644410
GRID60OCGridlesswith ducted air handler (H,D)E49*60+TXV+TD4.5 tons53,000 Btu/h · Ducted2.0070%8.216.0CEE 25CEE 26XcelES CC4218644409
GRID36OCGridlesswith ducted air handler (H,D)E33*36+TXV+TD2.5 tons32,600 Btu/h · Ducted1.8074%8.216.0CEE 25CEE 26XcelES CC4218644408
GRID18OM2Gridless · Gridless MULTI ZONE1.5 tons18,000 Btu/h · Non-ducted1.99100%10.022.0CEE 25CEE 26XcelES CC1217123266

Shares hardware with

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

Compare Gridless

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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