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Century heat pump efficiency: 63 outdoor models compared

Century has 63 heat pump outdoor models certified with this refrigerant group, in 6,901 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 Century makes. Century 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
63
AHRI certifications
6,901
Efficiency index
54%
Typical model vs same-size, same-type peers (52 models)
Meet CEE 2025
44.4%
28 models

How Century 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.
Century against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of Century’s own modelsCentury is strongest on COP at 5°F (its typical model beats 57% of comparable models) and weakest on SEER2 (40%).
  • Century
  • Middle half of its models
  • Other ranked manufacturers
Century

Source: AHRI Directory, NEEP · as of

Average peer percentile of Century’s models
RatingBeats comparable modelsRankRaw median
Efficiency index52 models scored54%Not ranked—
COP at 5°F52 models scored57%Not ranked2.00
Capacity retention at 5°F52 models scored52%Not ranked65%
HSPF269 models scored44%Not ranked8.0
SEER269 models scored40%Not ranked15.6
EER269 models scored53%Not ranked11.0
Heating capacity at 5°F52 models scored51%Not ranked19,800 Btu/h

Standards met

Share of Century’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)44.4%28
CEE 2026 Tier 1 (Split ASHP)42.9%27
CEE Advanced Tier (Split ASHP)0%0
Xcel Energy Colorado cold-climate ASHP (2025)27%17
DOE Cold Climate Heat Pump Challenge0%0
ENERGY STAR Cold Climate30.2%19

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
Century’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
  • Century (median, middle 50%, 10th–90th)
  • All models of the group
Ducted, up to 1.5 tons2.00884 modelsDucted, 2 tons2.00821 modelsDucted, 2.5–3 tons1.901,614 modelsDucted, 3.5–4.5 tons1.911,492 modelsDucted, 5 tons and up1.90239 modelsNon-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 modelsNon-ducted, 3.5–4.5 tons1.97438 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 tons648%69%31%35%
Ducted, 2 tons642%57%28%22%
Ducted, 2.5–3 tons1560%62%46%41%
Ducted, 3.5–4.5 tons1858%64%37%37%
Ducted, 5 tons and up119%4%9%12%
Non-ducted, up to 1.5 tons1050%52%59%46%
Non-ducted, 2 tons249%58%52%44%
Non-ducted, 2.5–3 tons863%50%62%51%
Non-ducted, 3.5–4.5 tons365%39%46%58%

Every Century model in the market

Century’s 69 models with a known size and duct type, over the shape of the whole catalog.
Century models by size and ratingColoured: Century · grey shapes: all 11,475 models · lines: catalog medians by size
  • Century models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 69 century 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, sizeModels10th pct.25thMedian75th90th
Ducted, 0.5 tons1751.701.851.902.102.26
Ducted, 1 ton3401.851.902.002.402.65
Ducted, 1.5 tons7891.751.852.002.202.55
Ducted, 2 tons7821.731.802.002.102.33
Ducted, 2.5 tons7351.711.801.902.092.48
Ducted, 3 tons6521.681.701.902.062.36
Ducted, 3.5 tons6411.611.801.952.202.50
Ducted, 4 tons3671.701.801.912.022.52
Ducted, 4.5 tons5441.701.801.912.082.34
Ducted, 5 tons251.801.801.901.902.15
Non-ducted, 0.5 tons7171.751.811.972.102.19
Non-ducted, 1 ton1,0641.751.801.902.072.25
Non-ducted, 1.5 tons8861.801.801.872.072.21
Non-ducted, 2 tons5641.801.801.832.042.21
Non-ducted, 2.5 tons2751.801.811.841.862.03
Non-ducted, 3 tons5021.801.801.902.002.09
Non-ducted, 3.5 tons701.821.831.902.002.28
Non-ducted, 4 tons2631.801.801.982.002.10
Non-ducted, 4.5 tons1031.771.771.801.972.02
Non-ducted, 5 tons291.982.002.102.302.47

Source: AHRI Directory · as of

Top Century 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 Century 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
1A-VMH36QV-1ACENTURY · A-VMH Series3 tons36,000 Btu/h · Non-ducted103%2.0010.937,00022.4CEE 25CEE 26XcelES CC3214415107Non-ducted, 2.5–3 tons90.9
2A-VMH06SV-1CENTURY · A-serieswith ductless indoor unit B-VMH06SV-10.5 tons6,000 Btu/h · Non-ducted107%2.0913.67,50026.5CEE 25CEE 26XcelES CC1212940813Non-ducted, up to 1.5 tons89.3
3A-VMH24SV-1CENTURY · A-serieswith ductless indoor unit B-VMH24SV-12 tons24,000 Btu/h · Non-ducted86%2.2111.425,00021.5CEE 25CEE 26XcelES CC1212940817Non-ducted, 2 tons84.5
4A-VMH36QV-1ACENTURY · A-VMH Series3 tons36,000 Btu/h · Ducted100%1.9010.036,00019.4CEE 25CEE 26XcelES CC3214415109Ducted, 2.5–3 tons79.9
5A-VMH36QV-1CENTURY · A-series3 tons36,000 Btu/h · Non-ducted97%1.9010.336,00022.2CEE 25CEE 26XcelES CC3212940825Non-ducted, 2.5–3 tons79.3

All-around best

Top 5 Century 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
1A-VMH06SV-1CENTURY · A-serieswith ductless indoor unit B-VMH06SV-10.5 tons6,000 Btu/h · Non-ducted107%2.0913.626.515.8CEE 25CEE 26XcelES CC1212940813Non-ducted, up to 1.5 tons92.089.394.789.3
2A-VMH09SV-1CENTURY · A-serieswith ductless indoor unit B-VMH09SV-11 ton9,000 Btu/h · Non-ducted88%1.9711.528.116.2CEE 25CEE 26XcelES CC1212940814Non-ducted, up to 1.5 tons87.076.297.976.2
3A-VMH36QV-1ACENTURY · A-VMH Series3 tons36,000 Btu/h · Non-ducted103%2.0010.922.412.5CEE 25CEE 26XcelES CC3214415107Non-ducted, 2.5–3 tons86.490.981.890.9
4A-VMH24SV-1CENTURY · A-serieswith ductless indoor unit B-VMH24SV-12 tons24,000 Btu/h · Non-ducted86%2.2111.421.513.0CEE 25CEE 26XcelES CC1212940817Non-ducted, 2 tons84.384.584.184.5
5A-VMH36QV-1ACENTURY · A-VMH Series3 tons36,000 Btu/h · Ducted100%1.9010.019.412.0CEE 25CEE 26XcelES CC3214415109Ducted, 2.5–3 tons83.779.987.579.9

Best model on each rating

Century’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FHRG1548S1R-**A2.88Ducted, 3.5–4.5 tons98%211174166
Capacity retention at 5°FA-VMH36QV-1A103%Non-ducted, 2.5–3 tons97%214415107
HSPF2A-VMH06SV-113.6Non-ducted, up to 1.5 tons98%212940813
SEER2A-VMH48PV-120.9Ducted, 3.5–4.5 tons99%214442638
EER2HRG1548S1R-**A13.5Ducted, 3.5–4.5 tons100%211055435
Heating capacity at 5°FA-VMH18DV-120,000 Btu/hNon-ducted, up to 1.5 tons96%212940821

All 63 Century models in Explore

Century 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.
Century: 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 tons63.7(50 is the typical model of its size class)A-VCD18SA-1with ducted air handler MCD18/24B1A2 of 6 models qualify · AHRI 21294079963.4(50 is the typical model of its size class)A-VCD18SA-1with ducted air handler B-VCD18SA-15 of 6 models have all five ratings · AHRI 212940800
Ducted, 2 tons66.5(50 is the typical model of its size class)A-VCD24SA-1with ducted air handler B-VCD24SA-11 of 6 models qualify · AHRI 21294080272.4(50 is the typical model of its size class)HRG1836S1Pwith indoor coil EAH1P30B+TDR+TXV and furnace GUH97M070B3M5 of 7 models have all five ratings · AHRI 212604310
Ducted, 2.5–3 tons79.9(50 is the typical model of its size class)A-VMH36QV-1A5 of 15 models qualify · AHRI 21441510983.7(50 is the typical model of its size class)A-VMH36QV-1A9 of 13 models have all five ratings · AHRI 214415109
Ducted, 3.5–4.5 tons74.9(50 is the typical model of its size class)A-VMH48PV-14 of 18 models qualify · AHRI 21444263882.0(50 is the typical model of its size class)A-VMH48PV-112 of 19 models have all five ratings · AHRI 214442638
Ducted, 5 tons and upNone on this board (0 of 1 models qualify)19.3(50 is the typical model of its size class)RHP6000S1A1 of 1 models have all five ratings · AHRI 214076319
Non-ducted, up to 1.5 tons89.3(50 is the typical model of its size class)A-VMH06SV-1with ductless indoor unit B-VMH06SV-16 of 10 models qualify · AHRI 21294081392.0(50 is the typical model of its size class)A-VMH06SV-1with ductless indoor unit B-VMH06SV-110 of 10 models have all five ratings · AHRI 212940813
Non-ducted, 2 tons84.5(50 is the typical model of its size class)A-VMH24SV-1with ductless indoor unit B-VMH24SV-11 of 2 models qualify · AHRI 21294081784.3(50 is the typical model of its size class)A-VMH24SV-1with ductless indoor unit B-VMH24SV-12 of 2 models have all five ratings · AHRI 212940817
Non-ducted, 2.5–3 tons90.9(50 is the typical model of its size class)A-VMH36QV-1A4 of 8 models qualify · AHRI 21441510786.4(50 is the typical model of its size class)A-VMH36QV-1A6 of 8 models have all five ratings · AHRI 214415107
Non-ducted, 3.5–4.5 tons76.2(50 is the typical model of its size class)A-VMH48PV-12 of 3 models qualify · AHRI 21444263777.9(50 is the typical model of its size class)A-VMH48PV-12 of 3 models have all five ratings · AHRI 214442637

All-around board, every manufacturer

Newest Century certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified Century outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
HRG1560S1R-**ACentury · HRG15 Serieswith ducted air handler HMA60VX1D-4.5 tons53,500 Btu/h · Ducted2.1453%8.014.3None254215414512
HRG1548S1R-**ACentury · HRG15 Serieswith ducted air handler HMA60VX1D-4 tons48,000 Btu/h · Ducted2.1654%7.814.7CEE 25CEE 261,146215414510
HRG1836S1PCENTURYwith indoor coil 7EC48CX-0*+TDR and furnace GUH97T090C5M3 tons34,200 Btu/h · Ducted2.1055%8.518.0CEE 25CEE 26219215297398
HRG1542S1R-**ACenturywith indoor coil (C,M)AG60TCFP and furnace GUH97T110C5M3.5 tons41,500 Btu/h · Ducted2.0652%7.815.2CEE 25CEE 26915215271627
HRG1536S1R-**ACenturywith indoor coil (C,M)CG36TC7P and furnace GUH97T110C5M3 tons35,400 Btu/h · Ducted2.1856%8.016.0CEE 25CEE 261,021215271588

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