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ORTECH heat pump efficiency: 24 outdoor models compared

ORTECH has 24 heat pump outdoor models certified with this refrigerant group, in 24 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 ORTECH makes. ORTECH 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
24
AHRI certifications
24
Efficiency index
58%
Typical model vs same-size, same-type peers (24 models)
Meet CEE 2025
83.3%
20 models

How ORTECH 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.
ORTECH against every ranked manufacturerPeer scores, 0–100 · grey ticks: each ranked manufacturer · shaded: the middle half of ORTECH’s own modelsORTECH is strongest on heating capacity at 5°F (its typical model beats 72% of comparable models) and weakest on EER2 (42%).
  • ORTECH
  • Middle half of its models
  • Other ranked manufacturers
ORTECH

Source: AHRI Directory, NEEP · as of

Average peer percentile of ORTECH’s models
RatingBeats comparable modelsRankRaw median
Efficiency index24 models scored58%Not ranked—
COP at 5°F24 models scored53%Not ranked2.00
Capacity retention at 5°F24 models scored69%Not ranked86%
HSPF224 models scored65%Not ranked9.5
SEER224 models scored67%Not ranked20.6
EER224 models scored42%Not ranked11.6
Heating capacity at 5°F24 models scored72%Not ranked24,500 Btu/h

Standards met

Share of ORTECH’s models with at least one qualifying certification
StandardShareModels
CEE 2025 Tier 1 (Split ASHP)83.3%20
CEE 2026 Tier 1 (Split ASHP)83.3%20
CEE Advanced Tier (Split ASHP)4.2%1
Xcel Energy Colorado cold-climate ASHP (2025)79.2%19
DOE Cold Climate Heat Pump Challenge4.2%1
ENERGY STAR Cold Climate75%18

Sizes and duct types offered

Models per peer group, and how they score against the other models of that group.
ORTECH’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
  • ORTECH (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 tons251%50%31%63%
Ducted, 2 tons246%29%58%60%
Ducted, 2.5–3 tons450%35%68%67%
Ducted, 3.5–4.5 tons454%58%77%58%
Non-ducted, up to 1.5 tons558%70%58%61%
Non-ducted, 2 tons375%69%75%79%
Non-ducted, 2.5–3 tons366%53%72%75%
Non-ducted, 3.5–4.5 tons172%37%67%97%

Every ORTECH model in the market

ORTECH’s 24 models with a known size and duct type, over the shape of the whole catalog.
ORTECH models by size and ratingColoured: ORTECH · grey shapes: all 14,508 models · lines: catalog medians by size
  • ORTECH models
  • Ducted median by size
  • Non-ducted median by size
  • Every model at each size (width = count)
  • Standard threshold

Dots: 24 ortech 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 ORTECH 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 ORTECH 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
1OAH-MZ24K-208-CH-OORTECH · Multi-spilt series2 tons24,000 Btu/h · Non-ducted108%2.1010.526,00024.0CEE 25CEE 26CEE AdvXcelDOEES CC1218451244Non-ducted, 2 tons84.4
2OAH-MZ18K-208-CH-OORTECH · Multi-spilt series1.5 tons18,000 Btu/h · Non-ducted121%2.0011.021,80023.3CEE 25CEE 26XcelES CC1218451243Non-ducted, up to 1.5 tons82.7
3OAH-SZ24K-208-PR-OORTECH · M Serieswith ductless indoor unit OAH-SZ24K-208-PR-H2 tons23,000 Btu/h · Non-ducted87%2.2010.020,80022.0CEE 25CEE 26XcelES CC1218457899Non-ducted, 2 tons77.2
4OAH-AHU48K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU48K-CH-D4 tons48,000 Btu/h · Ducted98%2.009.548,00017.0CEE 25CEE 26XcelES CC1218471064Ducted, 3.5–4.5 tons74.9
5OAH-MZ36K-208-CH-OORTECH · Multi-spilt series3 tons36,000 Btu/h · Non-ducted92%2.0011.033,00024.0CEE 25CEE 26XcelES CC1218451245Non-ducted, 2.5–3 tons73.2

All-around best

Top 5 ORTECH 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
1OAH-MZ24K-208-CH-OORTECH · Multi-spilt series2 tons24,000 Btu/h · Non-ducted108%2.1010.524.013.0CEE 25CEE 26CEE AdvXcelDOEES CC1218451244Non-ducted, 2 tons85.384.486.184.4
2OAH-MZ36K-208-CH-OORTECH · Multi-spilt series3 tons36,000 Btu/h · Non-ducted92%2.0011.024.012.5CEE 25CEE 26XcelES CC1218451245Non-ducted, 2.5–3 tons78.373.283.473.2
3OAH-MZ18K-208-CH-OORTECH · Multi-spilt series1.5 tons18,000 Btu/h · Non-ducted121%2.0011.023.312.5CEE 25CEE 26XcelES CC1218451243Non-ducted, up to 1.5 tons74.382.765.982.7
4OAH-MZ42K-208-CH-OORTECH · Multi-spilt series3.5 tons42,000 Btu/h · Non-ducted81%2.0010.524.012.5CEE 25CEE 26XcelES CC1218451246Non-ducted, 3.5–4.5 tons72.150.393.850.3
5OAH-MZ24K-208-PR-OORTECH · Multi-spilt series2 tons24,000 Btu/h · Non-ducted90%2.0010.023.012.5CEE 25CEE 26XcelES CC1218451240Non-ducted, 2 tons71.867.576.167.5

Best model on each rating

ORTECH’s model with the highest peer percentile on each rating, ranked by that one rating only
RatingModelValueCompared withBeatsAHRI ref.
COP at 5°FOAH-SZ18K-208-PR-O2.20Non-ducted, up to 1.5 tons85%218457898
Capacity retention at 5°FOAH-MZ24K-208-CH-O108%Non-ducted, 2 tons98%218451244
HSPF2OAH-MZ36K-208-CH-O11.0Non-ducted, 2.5–3 tons96%218451245
SEER2OAH-MZ42K-208-CH-O24.0Non-ducted, 3.5–4.5 tons94%218451246
EER2OAH-MZ42K-208-CH-O12.5Non-ducted, 3.5–4.5 tons87%218451246
Heating capacity at 5°FOAH-MZ18K-208-CH-O21,800 Btu/hNon-ducted, up to 1.5 tons99%218451243

All 24 ORTECH models in Explore

ORTECH 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.
ORTECH: 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 tons53.8(50 is the typical model of its size class)OAH-AHU18K-CH-Owith ducted air handler OAH-AHU18K-CH-D2 of 2 models qualify · AHRI 21847106055.8(50 is the typical model of its size class)OAH-AHU18K-CH-Owith ducted air handler OAH-AHU18K-CH-D2 of 2 models have all five ratings · AHRI 218471060
Ducted, 2 tons59.5(50 is the typical model of its size class)OAH-AHU24K-CH-Owith ducted air handler OAH-AHU24K-CH-D2 of 2 models qualify · AHRI 21847106155.5(50 is the typical model of its size class)OAH-AHU24K-CH-Owith ducted air handler OAH-AHU24K-CH-D2 of 2 models have all five ratings · AHRI 218471061
Ducted, 2.5–3 tons69.4(50 is the typical model of its size class)OAH-AHU36K-CH-Owith ducted air handler OAH-AHU36K-CH-D2 of 4 models qualify · AHRI 21847106360.1(50 is the typical model of its size class)OAH-AHU30K-CH-Owith ducted air handler OAH-AHU30K-CH-D4 of 4 models have all five ratings · AHRI 218471062
Ducted, 3.5–4.5 tons74.9(50 is the typical model of its size class)OAH-AHU48K-CH-Owith ducted air handler OAH-AHU48K-CH-D4 of 4 models qualify · AHRI 21847106459.2(50 is the typical model of its size class)OAH-AHU48K-CH-Owith ducted air handler OAH-AHU48K-CH-D4 of 4 models have all five ratings · AHRI 218471064
Non-ducted, up to 1.5 tons82.7(50 is the typical model of its size class)OAH-MZ18K-208-CH-O5 of 5 models qualify · AHRI 21845124374.3(50 is the typical model of its size class)OAH-MZ18K-208-CH-O5 of 5 models have all five ratings · AHRI 218451243
Non-ducted, 2 tons84.4(50 is the typical model of its size class)OAH-MZ24K-208-CH-O3 of 3 models qualify · AHRI 21845124485.3(50 is the typical model of its size class)OAH-MZ24K-208-CH-O3 of 3 models have all five ratings · AHRI 218451244
Non-ducted, 2.5–3 tons73.2(50 is the typical model of its size class)OAH-MZ36K-208-CH-O3 of 3 models qualify · AHRI 21845124578.3(50 is the typical model of its size class)OAH-MZ36K-208-CH-O3 of 3 models have all five ratings · AHRI 218451245
Non-ducted, 3.5–4.5 tons50.3(50 is the typical model of its size class)OAH-MZ42K-208-CH-O1 of 1 models qualify · AHRI 21845124672.1(50 is the typical model of its size class)OAH-MZ42K-208-CH-O1 of 1 models have all five ratings · AHRI 218451246

All-around board, every manufacturer

Newest ORTECH certifications

By AHRI reference number; AHRI issues references in increasing order.
The 5 most recently certified ORTECH outdoor models
Outdoor modelSize · typeCOP@5°FCap. 5/47HSPF2SEER2MeetsCombosAHRI ref.
OAH-AHU60K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU60K-CH-D4.5 tons55,000 Btu/h · Ducted2.0087%9.516.5ES CC1218471065
OAH-AHU48K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU48K-CH-D4 tons48,000 Btu/h · Ducted2.0098%9.517.0CEE 25CEE 26XcelES CC1218471064
OAH-AHU36K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU36K-CH-D3 tons36,000 Btu/h · Ducted1.90100%10.018.2CEE 25CEE 26XcelES CC1218471063
OAH-AHU30K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU30K-CH-D2.5 tons30,000 Btu/h · Ducted1.80100%9.018.0CEE 25CEE 26XcelES CC1218471062
OAH-AHU24K-CH-OORTECH · Mini-spilt Ducted serieswith ducted air handler OAH-AHU24K-CH-D2 tons24,000 Btu/h · Ducted1.8092%9.519.0CEE 25CEE 26XcelES CC1218471061

Shares hardware with

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

No shared hardware found for ORTECH in this group.

Compare ORTECH

Manufacturers of a similar size, side by side.

Compare with any manufacturer

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