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VKIN heat pump efficiency: 26 outdoor models compared

VKIN has 26 heat pump outdoor models certified with this refrigerant group, in 34 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 VKIN makes. VKIN 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
26
AHRI certifications
34
Efficiency index
60%
Typical model vs same-size, same-type peers (30 models)
Meet CEE 2025
96.2%
25 models

How VKIN 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.
VKIN against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of VKIN’s own modelsVKIN is strongest on SEER2 (its typical model beats 72% of comparable models) and weakest on EER2 (54%).
  • VKIN
  • Middle half of its models
  • Other ranked manufacturers
VKIN

Source: AHRI Directory, NEEP · as of

Average peer percentile of VKIN’s models
RatingBeats comparable modelsRankRaw median
Efficiency index30 models scored60%Not ranked—
COP at 5°F30 models scored57%Not ranked2.00
Capacity retention at 5°F30 models scored55%Not ranked75%
HSPF230 models scored60%Not ranked9.8
SEER230 models scored72%Not ranked22.0
EER230 models scored54%Not ranked12.0
Heating capacity at 5°F30 models scored54%Not ranked18,700 Btu/h

Standards met

Share of VKIN’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)96.2%25
CEE 2026 Tier 1 (Split ASHP)96.2%25
CEE Advanced Tier (Split ASHP)3.8%1
Xcel Energy Colorado cold-climate ASHP (2025)92.3%24
DOE Cold Climate Heat Pump Challenge3.8%1
ENERGY STAR Cold Climate88.5%23

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
VKIN’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
  • VKIN (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, up to 1.5 tons1.901,783 modelsDucted, 2 tons2.001,090 modelsDucted, 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, up to 1.5 tons169%49%62%92%
Ducted, 2 tons276%77%72%77%
Ducted, 2.5–3 tons465%56%65%85%
Ducted, 3.5–4.5 tons563%73%75%75%
Non-ducted, up to 1.5 tons1161%60%61%64%
Non-ducted, 2 tons346%27%33%61%
Non-ducted, 2.5–3 tons258%53%70%79%
Non-ducted, 3.5–4.5 tons241%37%27%78%

Every VKIN model in the market

VKIN’s 30 models with a known size and duct type, over the shape of the whole catalog.
VKIN models by size and ratingColoured: VKIN · grey shapes: all 14,508 models · lines: catalog medians by size
  • VKIN models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 30 vkin 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 VKIN 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 VKIN 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
1URHA-09WDCN4(O)VKIN · HiULTRAwith ductless indoor unit URHA-09WDCN4(I)1 ton9,000 Btu/h · Non-ducted100%2.0911.09,00025.0CEE 25CEE 26XcelES CC1216498652Non-ducted, up to 1.5 tons82.4
2UCHA-24HDCSN4VKIN · SIDE-DISCHARGEwith ducted air handler UCHA-24HDCN42 tons24,000 Btu/h · Ducted100%2.209.524,00018.5CEE 25CEE 26CEE AdvXcelDOEES CC2218385960Ducted, 2 tons80.9
3UCHA-48HDCSN4VKIN · SIDE-DISCHARGEwith ducted air handler UCHA-48HDCN44 tons48,000 Btu/h · Ducted75%2.259.836,00017.5CEE 25CEE 26XcelES CC2218385962Ducted, 3.5–4.5 tons76.6
4UCHA-48HDCTVKIN · AHUwith ducted air handler UCHA-48HDC4 tons48,000 Btu/h · Ducted73%2.209.835,00018.5CEE 25CEE 26XcelES CC1218385957Ducted, 3.5–4.5 tons73.3
5UCHA-36HDCTVKIN · AHUwith ducted air handler UCHA-36HDC3 tons34,200 Btu/h · Ducted73%2.209.025,00018.5CEE 25CEE 26XcelES CC1218385958Ducted, 2.5–3 tons70.3

All-around best

Top 5 VKIN 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
1URHA-09WDCN4(O)VKIN · HiULTRAwith ductless indoor unit URHA-09WDCN4(I)1 ton9,000 Btu/h · Non-ducted100%2.0911.025.013.7CEE 25CEE 26XcelES CC1216498652Non-ducted, up to 1.5 tons83.982.485.482.4
2UCHA-24HDCTVKIN · AHUwith ducted air handler UCHA-24HDC2 tons24,000 Btu/h · Ducted74%2.209.520.014.0CEE 25CEE 26XcelES CC1218385956Ducted, 2 tons79.365.193.465.1
3UCHA-24HDCSN4VKIN · SIDE-DISCHARGEwith ducted air handler UCHA-24HDCN42 tons24,000 Btu/h · Ducted100%2.209.518.512.0CEE 25CEE 26CEE AdvXcelDOEES CC2218385960Ducted, 2 tons73.580.966.280.9
4URHT-18FM2N4VKIN1.5 tons18,000 Btu/h · Non-ducted80%2.0010.524.013.0CEE 25CEE 26XcelES CC2218258549Non-ducted, up to 1.5 tons72.268.675.868.6
5URHA-09WDC1N4(O)VKIN · HiULTRAwith ductless indoor unit URHA-09WDC1N4(I)1 ton9,000 Btu/h · Non-ducted97%1.9010.023.014.1CEE 25CEE 26XcelES CC1216498650Non-ducted, up to 1.5 tons70.663.278.163.2

Best model on each rating

VKIN’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FURHA-18WDCNX-O2.49Non-ducted, up to 1.5 tons98%216012254
Capacity retention at 5°FUCHA-24HDCSN4100%Ducted, 2 tons92%218385960
HSPF2URHA-09WDCN4(O)11.0Non-ducted, up to 1.5 tons85%216498652
SEER2URHT-27FM3N422.0Ducted, 2.5–3 tons99%218258555
EER2UCHA-24HDCT14.0Ducted, 2 tons98%218385956
Heating capacity at 5°FURHA-18WDCN4(O)18,000 Btu/hNon-ducted, up to 1.5 tons93%216498654

All 26 VKIN models in Explore

VKIN 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.
VKIN: 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, up to 1.5 tons57.7(50 is the typical model of its size class)URHT-18FM2N41 of 1 models qualify · AHRI 21825855469.0(50 is the typical model of its size class)URHT-18FM2N41 of 1 models have all five ratings · AHRI 218258554
Ducted, 2 tons80.9(50 is the typical model of its size class)UCHA-24HDCSN4with ducted air handler UCHA-24HDCN42 of 2 models qualify · AHRI 21838596079.3(50 is the typical model of its size class)UCHA-24HDCTwith ducted air handler UCHA-24HDC2 of 2 models have all five ratings · AHRI 218385956
Ducted, 2.5–3 tons70.3(50 is the typical model of its size class)UCHA-36HDCTwith ducted air handler UCHA-36HDC4 of 4 models qualify · AHRI 21838595869.9(50 is the typical model of its size class)URHT-27FM3N44 of 4 models have all five ratings · AHRI 218258555
Ducted, 3.5–4.5 tons76.6(50 is the typical model of its size class)UCHA-48HDCSN4with ducted air handler UCHA-48HDCN45 of 5 models qualify · AHRI 21838596268.3(50 is the typical model of its size class)UCHA-48HDCTwith ducted air handler UCHA-48HDC5 of 5 models have all five ratings · AHRI 218385957
Non-ducted, up to 1.5 tons82.4(50 is the typical model of its size class)URHA-09WDCN4(O)with ductless indoor unit URHA-09WDCN4(I)10 of 11 models qualify · AHRI 21649865283.9(50 is the typical model of its size class)URHA-09WDCN4(O)with ductless indoor unit URHA-09WDCN4(I)11 of 11 models have all five ratings · AHRI 216498652
Non-ducted, 2 tons48.1(50 is the typical model of its size class)URHA-24WDCN4(O)with ductless indoor unit URHA-24WDCN4(I)3 of 3 models qualify · AHRI 21649865558.3(50 is the typical model of its size class)URHA-24WDCN4(O)with ductless indoor unit URHA-24WDCN4(I)3 of 3 models have all five ratings · AHRI 216498655
Non-ducted, 2.5–3 tons57.5(50 is the typical model of its size class)URHT-27FM3N42 of 2 models qualify · AHRI 21825855065.1(50 is the typical model of its size class)URHT-27FM3N42 of 2 models have all five ratings · AHRI 218258550
Non-ducted, 3.5–4.5 tons31.2(50 is the typical model of its size class)URHT-42FM5N42 of 2 models qualify · AHRI 21825855242.4(50 is the typical model of its size class)URHT-42FM5N42 of 2 models have all five ratings · AHRI 218258552

All-around board, every manufacturer

Newest VKIN certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified VKIN outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
URHT-24WDCN4VKIN · T-prowith ductless indoor unit URHT-24WDCN4(I)2 tons23,000 Btu/h · Non-ducted1.8076%9.523.0CEE 25CEE 26XcelES CC1218471557
URHT-18WDCN4VKIN · T-prowith ductless indoor unit URHT-18WDCN4(I)1.5 tons18,000 Btu/h · Non-ducted1.8072%10.023.0CEE 25CEE 26XcelES CC1218471556
URHT-12WDC1N4VKIN · T-prowith ductless indoor unit URHT-12WDC1N4(I)1 ton12,000 Btu/h · Non-ducted2.1072%10.023.0CEE 25CEE 26XcelES CC1218471555
UCHA-60HDCSN4VKIN · SIDE-DISCHARGEwith ducted air handler UCHA-60SHDCN44.5 tons54,000 Btu/h · Ducted2.2074%9.016.7CEE 25CEE 26XcelES CC2218425677
UCHA-48HDCSN4VKIN · SIDE-DISCHARGEwith ducted air handler UCHA-48SHDCN44 tons48,000 Btu/h · Ducted2.2575%9.817.5CEE 25CEE 26XcelES CC2218425676

Shares hardware with

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

No shared hardware found for VKIN in this group.

Compare VKIN

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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