Skip to content
Rebate.Blue

DIYCOOL vs ORTECH heat pumps

Measured against models of the same size and duct type, ORTECH scores higher on 4 of the 6 ratings. DIYCOOL has 24 outdoor models, ORTECH has 24 outdoor models. DIYCOOL and ORTECH have no QMID on file and are not ranked.

New to heat pump ratings? The Simple view explains them in plain words →

CompareData as of updated · sources

Against comparable models

Each cell is the share of same-size, same-type models that the manufacturer’s typical model beats (50% is typical); the higher score is in bold. Raw medians are underneath for context: they depend on which sizes each one makes, so they are not compared.
DIYCOOL and ORTECH on every ratingPeer scores, 0–100 · grey ticks: every ranked manufacturer · shaded: the middle half of each one’s modelsMeasured against models of the same size and duct type, ORTECH scores higher on 4 of the 6 ratings.
  • DIYCOOL
  • ORTECH
  • Other ranked manufacturers
DIYCOOLORTECH

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingDIYCOOLORTECH
Efficiency index54%median —58%median —
COP at 5°F53%median 2.0053%median 2.00
Capacity retention at 5°F51%median 74%69%median 86%
HSPF263%median 9.665%median 9.5
SEER260%median 18.767%median 20.6
EER247% (higher)median 11.542% (higher)median 11.6
Heating capacity at 5°F60%median 23,500 Btu/h72%median 24,500 Btu/h
Outdoor models2424
AHRI certifications3024

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardDIYCOOLORTECH
CEE 2025 Tier 1 (Split ASHP)79.2%19 models83.3%20 models
CEE 2026 Tier 1 (Split ASHP)79.2%19 models83.3%20 models
CEE Advanced Tier (Split ASHP)4.2%1 models4.2%1 models
Xcel Energy Colorado cold-climate ASHP (2025)70.8%17 models79.2%19 models
DOE Cold Climate Heat Pump Challenge4.2%1 models4.2%1 models
ENERGY STAR Cold Climate75%18 models75%18 models

Sizes and duct types offered

Models in each peer group, with the efficiency index of those models against the rest of the group.
Side by side, inside each size and duct typeShape: every model of the group · bars: each manufacturer’s middle half, median dot, 10th–90th line · 7 groups where both have models
  • DIYCOOL
  • ORTECH
  • 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

Raw ratings are only placed side by side within one size and duct type, where they are comparable.

Source: AHRI Directory · as of

Models per peer group · efficiency index within the group
Size and duct typeDIYCOOLORTECH
Ducted, 2 tons4 · index 64%2 · index 46%
Ducted, 2.5–3 tons4 · index 62%4 · index 50%
Ducted, 3.5–4.5 tons7 · index 61%4 · index 54%
Ducted, up to 1.5 tonsNone2 · index 51%
Non-ducted, up to 1.5 tons6 · index 48%5 · index 58%
Non-ducted, 2 tons3 · index 44%3 · index 75%
Non-ducted, 2.5–3 tons2 · index 32%3 · index 66%
Non-ducted, 3.5–4.5 tons1 · index 53%1 · index 72%

Cold-climate and all-around picks, size class by size class

Each manufacturer’s best model on each board in every size and duct type, side by side; the higher score is in bold. Both scores are 0–100 against every model of that size class (the line on each bar is 50, the typical model there), so the two compare fairly even when they make different sizes.

Cold-climate picks

Best cold-climate pick per size and duct type (keeps at least 70% of its heat at 5°F). 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.
Size and duct typeDIYCOOLCold-climate score, best modelORTECHCold-climate score, best model
Ducted, up to 1.5 tonsNo models in this size class53.8(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 218471060
Ducted, 2 tons76.2(50 is the typical model of its size class) (higher)ACIQ-24-HP32with ducted air handler ACIQ-24-AH324 of 4 models qualify · AHRI 21538724259.5(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 218471061
Ducted, 2.5–3 tons76.9(50 is the typical model of its size class) (higher)ACIQ-36-HP32with ducted air handler ACIQ-36-AH324 of 4 models qualify · AHRI 21538724369.4(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 218471063
Ducted, 3.5–4.5 tons85.1(50 is the typical model of its size class) (higher)ACIQ-60-HP32with ducted air handler ACIQ-60-AH327 of 7 models qualify · AHRI 21538724574.9(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 218471064
Non-ducted, up to 1.5 tons73.1(50 is the typical model of its size class)EZ-18ZPL-HP230Bwith ductless indoor unit EZ-18W-MB3 of 6 models qualify · AHRI 21698089882.7(50 is the typical model of its size class) (higher)OAH-MZ18K-208-CH-O5 of 5 models qualify · AHRI 218451243
Non-ducted, 2 tons42.8(50 is the typical model of its size class)EZ-27Z-M3B1 of 3 models qualify · AHRI 21698092284.4(50 is the typical model of its size class) (higher)OAH-MZ24K-208-CH-O3 of 3 models qualify · AHRI 218451244
Non-ducted, 2.5–3 tons41.3(50 is the typical model of its size class)EZ-36Z-M4B1 of 2 models qualify · AHRI 21698092373.2(50 is the typical model of its size class) (higher)OAH-MZ36K-208-CH-O3 of 3 models qualify · AHRI 218451245
Non-ducted, 3.5–4.5 tons45.0(50 is the typical model of its size class)EZ-48Z-M5B1 of 1 models qualify · AHRI 21698092850.3(50 is the typical model of its size class) (higher)OAH-MZ42K-208-CH-O1 of 1 models qualify · AHRI 218451246

All-around best

Best all-around model per size and duct type. 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.
Size and duct typeDIYCOOLAll-around score, best modelORTECHAll-around score, best model
Ducted, up to 1.5 tonsNo models in this size class55.8(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 tons73.1(50 is the typical model of its size class) (higher)ACIQ-24-HP32with ducted air handler ACIQ-24-AH324 of 4 models have all five ratings · AHRI 21538724255.5(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) (higher)ACIQ-36-HP32with ducted air handler ACIQ-36-AH324 of 4 models have all five ratings · AHRI 21538724360.1(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 tons83.1(50 is the typical model of its size class) (higher)ACIQ-48-HP32with ducted air handler ACIQ-48-AH327 of 7 models have all five ratings · AHRI 21538724459.2(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 tons73.3(50 is the typical model of its size class)EZ-18ZPL-HP230Bwith ductless indoor unit EZ-18W-MB6 of 6 models have all five ratings · AHRI 21698089874.3(50 is the typical model of its size class) (higher)OAH-MZ18K-208-CH-O5 of 5 models have all five ratings · AHRI 218451243
Non-ducted, 2 tons56.2(50 is the typical model of its size class)EZ-24ZPL-HP230Bwith ductless indoor unit EZ-24W-MB3 of 3 models have all five ratings · AHRI 21698089985.3(50 is the typical model of its size class) (higher)OAH-MZ24K-208-CH-O3 of 3 models have all five ratings · AHRI 218451244
Non-ducted, 2.5–3 tons53.2(50 is the typical model of its size class)EZ-36Z-M4B2 of 2 models have all five ratings · AHRI 21698092378.3(50 is the typical model of its size class) (higher)OAH-MZ36K-208-CH-O3 of 3 models have all five ratings · AHRI 218451245
Non-ducted, 3.5–4.5 tons52.8(50 is the typical model of its size class)EZ-48Z-M5B1 of 1 models have all five ratings · AHRI 21698092672.1(50 is the typical model of its size class) (higher)OAH-MZ42K-208-CH-O1 of 1 models have all five ratings · AHRI 218451246

All-around board, every manufacturer

Standout model on each rating

Each manufacturer’s model that beats the largest share of comparable models on the rating; the higher share is in bold.
Top model per rating by peer percentile, with its AHRI-certified value and peer group
RatingDIYCOOLORTECH
COP at 5°Fbeats 98% · 2.44EZ-18ZPL-HP230BNon-ducted, up to 1.5 tonsbeats 85% · 2.20OAH-SZ18K-208-PR-ONon-ducted, up to 1.5 tons
Capacity retention at 5°Fbeats 94% · 100%ACIQ-48-HP32Ducted, 3.5–4.5 tonsbeats 98% · 108%OAH-MZ24K-208-CH-ONon-ducted, 2 tons
HSPF2beats 91% · 10.3EZ-36-HPBDucted, 2.5–3 tonsbeats 96% · 11.0OAH-MZ36K-208-CH-ONon-ducted, 2.5–3 tons
SEER2beats 91% · 20.0EZ-48Z-M5BDucted, 3.5–4.5 tonsbeats 94% · 24.0OAH-MZ42K-208-CH-ONon-ducted, 3.5–4.5 tons
EER2beats 83% · 12.0ACIQ-48-HP32Ducted, 3.5–4.5 tonsbeats 87% · 12.5OAH-MZ42K-208-CH-ONon-ducted, 3.5–4.5 tons
Heating capacity at 5°Fbeats 98% · 54,000 Btu/hACIQ-60-HP32Ducted, 3.5–4.5 tonsbeats 99% · 21,800 Btu/hOAH-MZ18K-208-CH-ONon-ducted, up to 1.5 tons

More comparisons

Pick any two manufacturers