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Armbridge vs ECO AC heat pumps

Measured against models of the same size and duct type, ECO AC scores higher on 3 of the 6 ratings. Armbridge has 23 outdoor models, ECO AC has 22 outdoor models. Armbridge and ECO AC have no QMID on file and are not ranked.

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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.
Armbridge and ECO AC 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, ECO AC scores higher on 3 of the 6 ratings.
  • Armbridge
  • ECO AC
  • Other ranked manufacturers
ArmbridgeECO AC

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingArmbridgeECO AC
Efficiency index55%median —59%median —
COP at 5°F46% (higher)median 1.9044% (higher)median 1.95
Capacity retention at 5°F50%median 71%68%median 90%
HSPF262% (higher)median 9.547% (higher)median 10.0
SEER264%median 20.064%median 21.0
EER249%median 11.068%median 12.3
Heating capacity at 5°F49%median 19,000 Btu/h63%median 18,000 Btu/h
Outdoor models2322
AHRI certifications5834

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardArmbridgeECO AC
CEE 2025 Tier 1 (Split ASHP)56.5%13 models95.5%21 models
CEE 2026 Tier 1 (Split ASHP)56.5%13 models95.5%21 models
CEE Advanced Tier (Split ASHP)4.3%1 models13.6%3 models
Xcel Energy Colorado cold-climate ASHP (2025)60.9%14 models95.5%21 models
DOE Cold Climate Heat Pump Challenge4.3%1 models13.6%3 models
ENERGY STAR Cold Climate39.1%9 models100%22 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 · 8 groups where both have models
  • Armbridge
  • ECO AC
  • 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 typeArmbridgeECO AC
Ducted, up to 1.5 tons3 · index 60%1 · index 49%
Ducted, 2 tons3 · index 58%1 · index 55%
Ducted, 2.5–3 tons5 · index 59%3 · index 63%
Ducted, 3.5–4.5 tons4 · index 60%2 · index 74%
Non-ducted, up to 1.5 tons7 · index 44%10 · index 61%
Non-ducted, 2 tons3 · index 62%4 · index 55%
Non-ducted, 2.5–3 tons5 · index 44%4 · index 52%
Non-ducted, 3.5–4.5 tons2 · index 74%2 · index 62%

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 typeArmbridgeCold-climate score, best modelECO ACCold-climate score, best model
Ducted, up to 1.5 tons74.7(50 is the typical model of its size class) (higher)AB-GTMH18-230VO3 of 3 models qualify · AHRI 21805966139.3(50 is the typical model of its size class)EMH-2O18KBB1 of 1 models qualify · AHRI 218461419
Ducted, 2 tons63.0(50 is the typical model of its size class) (higher)AB-GTMH24-230VO3 of 3 models qualify · AHRI 21805966249.0(50 is the typical model of its size class)EMH-3O24KBB1 of 1 models qualify · AHRI 218461421
Ducted, 2.5–3 tons73.8(50 is the typical model of its size class)AB-GTMR30-230VO3 of 5 models qualify · AHRI 21805965876.9(50 is the typical model of its size class) (higher)EHI-O36KBBwith ducted air handler EHI-V36KBB3 of 3 models qualify · AHRI 217258402
Ducted, 3.5–4.5 tons76.8(50 is the typical model of its size class)AB-GTMR42-230VOAlso listed as AB-GTMH42-230VO2 of 4 models qualify · AHRI 21805966085.1(50 is the typical model of its size class) (higher)EHI-O60KBBwith ducted air handler EHI-V60KBB2 of 2 models qualify · AHRI 217258401
Non-ducted, up to 1.5 tons82.7(50 is the typical model of its size class)AB-GTMH18-230VO5 of 7 models qualify · AHRI 21805965287.2(50 is the typical model of its size class) (higher)EHP-O09KBBwith ductless indoor unit EHP-W09KBB10 of 10 models qualify · AHRI 216772328
Non-ducted, 2 tons84.4(50 is the typical model of its size class) (higher)AB-GTMH24-230VO3 of 3 models qualify · AHRI 21805965367.5(50 is the typical model of its size class)EMH-3O24KBB3 of 4 models qualify · AHRI 216772340
Non-ducted, 2.5–3 tons73.2(50 is the typical model of its size class)AB-GTMH36-230VO3 of 5 models qualify · AHRI 21805965477.2(50 is the typical model of its size class) (higher)EMH-4O36KBB4 of 4 models qualify · AHRI 216772342
Non-ducted, 3.5–4.5 tons59.9(50 is the typical model of its size class)AB-GTMR42-230VOAlso listed as AB-GTMH42-230VO2 of 2 models qualify · AHRI 21805966966.5(50 is the typical model of its size class) (higher)EMH-5O42KBB2 of 2 models qualify · AHRI 216772343

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 typeArmbridgeAll-around score, best modelECO ACAll-around score, best model
Ducted, up to 1.5 tons79.0(50 is the typical model of its size class) (higher)AB-GTMH18-230VO3 of 3 models have all five ratings · AHRI 21805966148.6(50 is the typical model of its size class)EMH-2O18KBB1 of 1 models have all five ratings · AHRI 218461419
Ducted, 2 tons78.5(50 is the typical model of its size class) (higher)AB-GTMH24-230VO3 of 3 models have all five ratings · AHRI 21805966272.4(50 is the typical model of its size class)EHI-O36KBBwith ducted air handler EHI-V24KBB2 of 2 models have all five ratings · AHRI 217452744
Ducted, 2.5–3 tons81.2(50 is the typical model of its size class) (higher)AB-GTMH36-230VO5 of 5 models have all five ratings · AHRI 21805966361.6(50 is the typical model of its size class)EMH-4O30KBB2 of 2 models have all five ratings · AHRI 218461417
Ducted, 3.5–4.5 tons87.0(50 is the typical model of its size class) (higher)AB-GTMR42-230VOAlso listed as AB-GTMH42-230VO4 of 4 models have all five ratings · AHRI 21805966083.1(50 is the typical model of its size class)EHI-O60KBBwith ducted air handler EHI-V48KBB2 of 2 models have all five ratings · AHRI 217452743
Non-ducted, up to 1.5 tons74.3(50 is the typical model of its size class)AB-GTMH18-230VO7 of 7 models have all five ratings · AHRI 21805965292.6(50 is the typical model of its size class) (higher)EHP-O09KBBwith ductless indoor unit EHP-W09KBB10 of 10 models have all five ratings · AHRI 216772328
Non-ducted, 2 tons85.3(50 is the typical model of its size class) (higher)AB-GTMH24-230VO3 of 3 models have all five ratings · AHRI 21805965378.1(50 is the typical model of its size class)EHP-O24KBBwith ductless indoor unit EHP-W24KBB4 of 4 models have all five ratings · AHRI 216772325
Non-ducted, 2.5–3 tons78.3(50 is the typical model of its size class) (higher)AB-GTMH36-230VO5 of 5 models have all five ratings · AHRI 21805965470.5(50 is the typical model of its size class)EMH-4O30KBB4 of 4 models have all five ratings · AHRI 216772341
Non-ducted, 3.5–4.5 tons74.4(50 is the typical model of its size class) (higher)AB-GTMR42-230VOAlso listed as AB-GTMH42-230VO2 of 2 models have all five ratings · AHRI 21805966967.7(50 is the typical model of its size class)EMH-5O42KBB2 of 2 models have all five ratings · AHRI 216772343

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
RatingArmbridgeECO AC
COP at 5°Fbeats 83% · 2.05AB-GTMR30-230VONon-ducted, 2.5–3 tonsbeats 88% · 2.10EMH-4O36KBBNon-ducted, 2.5–3 tons
Capacity retention at 5°Fbeats 98% · 108%AB-GTMH24-230VONon-ducted, 2 tonsbeats 94% · 100%EHP-O24KBBNon-ducted, 2 tons
HSPF2beats 96% · 11.0AB-GTMH36-230VONon-ducted, 2.5–3 tonsbeats 90% · 10.5EHI-O60KBBDucted, 3.5–4.5 tons
SEER2beats 100% · 22.0AB-GTMR42-230VOAlso listed as AB-GTMH42-230VODucted, 3.5–4.5 tonsbeats 99% · 27.0EHP-O24KBBNon-ducted, 2 tons
EER2beats 91% · 12.3AB-GTMR42-230VOAlso listed as AB-GTMH42-230VODucted, 3.5–4.5 tonsbeats 98% · 16.8EHP-O09KBBNon-ducted, up to 1.5 tons
Heating capacity at 5°Fbeats 99% · 21,800 Btu/hAB-GTMH18-230VONon-ducted, up to 1.5 tonsbeats 98% · 54,000 Btu/hEHI-O60KBBDucted, 3.5–4.5 tons

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