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ICONIC AIR SOLUTION vs Legacy Systems heat pumps

Measured against models of the same size and duct type, ICONIC AIR SOLUTION scores higher on 5 of the 6 ratings. ICONIC AIR SOLUTION has 46 outdoor models, Legacy Systems has 46 outdoor models. ICONIC AIR SOLUTION and Legacy Systems 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.
ICONIC AIR SOLUTION and Legacy Systems 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, ICONIC AIR SOLUTION scores higher on 5 of the 6 ratings.
  • ICONIC AIR SOLUTION
  • Legacy Systems
  • Other ranked manufacturers
ICONIC A…Legacy S…

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingICONIC AIR SOLUTIONLegacy Systems
Efficiency index58% (higher)median —39% (higher)median —
COP at 5°F45% (higher)median 1.9139% (higher)median 1.90
Capacity retention at 5°F55% (higher)median 71%13% (higher)median 46%
HSPF268% (higher)median 9.521% (higher)median 7.0
SEER268% (higher)median 20.030% (higher)median 15.2
EER253%median 11.466%median 11.4
Heating capacity at 5°F52% (higher)median 20,000 Btu/h12% (higher)median 14,800 Btu/h
Outdoor models4646
AHRI certifications974,062

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardICONIC AIR SOLUTIONLegacy Systems
CEE 2025 Tier 1 (Split ASHP)73.9%34 models6.5%3 models
CEE 2026 Tier 1 (Split ASHP)63%29 models2.2%1 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)52.2%24 models0%0 models
DOE Cold Climate Heat Pump Challenge0%0 models0%0 models
ENERGY STAR Cold Climate0%0 models0%0 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 · 5 groups where both have models
  • ICONIC AIR SOLUTION
  • Legacy Systems
  • 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

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 typeICONIC AIR SOLUTIONLegacy Systems
Ducted, up to 1.5 tons10 · index 66%3 · index 35%
Ducted, 2 tons5 · index 71%8 · index 37%
Ducted, 2.5–3 tons11 · index 62%15 · index 38%
Ducted, 3.5–4.5 tons8 · index 59%18 · index 42%
Ducted, 5 tons and up2 · index 52%2 · index 36%
Non-ducted, up to 1.5 tons12 · index 54%None
Non-ducted, 2 tons3 · index 49%None
Non-ducted, 2.5–3 tons9 · index 52%None
Non-ducted, 3.5–4.5 tons5 · index 49%None

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 typeICONIC AIR SOLUTIONCold-climate score, best modelLegacy SystemsCold-climate score, best model
Ducted, up to 1.5 tons81.5(50 is the typical model of its size class)ICOZ18AKwith ducted air handler IFOV18IK8 of 10 models qualify · AHRI 214389555None on this board (0 of 3 models qualify)
Ducted, 2 tons80.3(50 is the typical model of its size class)ICOO24AKwith ducted air handler IFOD24IK5 of 5 models qualify · AHRI 214640129None on this board (0 of 8 models qualify)
Ducted, 2.5–3 tons78.5(50 is the typical model of its size class)ICLZ36AKwith ducted air handler IFLV36IK6 of 11 models qualify · AHRI 213804894None on this board (0 of 15 models qualify)
Ducted, 3.5–4.5 tons73.8(50 is the typical model of its size class)ICLZ48AKwith ducted air handler IFLA48IK5 of 8 models qualify · AHRI 213412081None on this board (0 of 18 models qualify)
Ducted, 5 tons and upNone on this board (0 of 2 models qualify)None on this board (0 of 2 models qualify)
Non-ducted, up to 1.5 tons86.0(50 is the typical model of its size class)ICOO09AKwith ductless indoor unit IFOH09IK6 of 12 models qualify · AHRI 214389496No models in this size class
Non-ducted, 2 tons59.3(50 is the typical model of its size class)ICOO24AKwith ductless indoor unit IFOC24IK2 of 3 models qualify · AHRI 214389547No models in this size class
Non-ducted, 2.5–3 tons76.5(50 is the typical model of its size class)ICMZ36DK5 of 9 models qualify · AHRI 214389530No models in this size class
Non-ducted, 3.5–4.5 tons74.6(50 is the typical model of its size class)ICMZ48EK3 of 5 models qualify · AHRI 214389533No models in this size class

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 typeICONIC AIR SOLUTIONAll-around score, best modelLegacy SystemsAll-around score, best model
Ducted, up to 1.5 tons83.9(50 is the typical model of its size class) (higher)ICOZ09AKwith ducted air handler IFOV09IK10 of 10 models have all five ratings · AHRI 21438955340.0(50 is the typical model of its size class)GSZB401810A*with ducted air handler CAPTA3626*4A*+MBVC1201**-1AAlso listed as GSZM401810A3 of 3 models have all five ratings · AHRI 215234904
Ducted, 2 tons83.8(50 is the typical model of its size class) (higher)ICOO24AKwith ducted air handler IFOD24IK5 of 5 models have all five ratings · AHRI 21464012959.1(50 is the typical model of its size class)GSZC702410A*with ducted air handler AMVT30BP1400A6 of 8 models have all five ratings · AHRI 215236246
Ducted, 2.5–3 tons73.8(50 is the typical model of its size class) (higher)ICMZ27CK11 of 11 models have all five ratings · AHRI 21438952864.2(50 is the typical model of its size class)GSZC703610A*with ducted air handler CAPTA4230*4A*+MBVC2001**-1A11 of 15 models have all five ratings · AHRI 215236306
Ducted, 3.5–4.5 tons81.2(50 is the typical model of its size class) (higher)ICMZ48EK8 of 8 models have all five ratings · AHRI 21438953468.2(50 is the typical model of its size class)GSZC704810A*with ducted air handler CAPT4961*4A*+MBVC2001**-1A11 of 18 models have all five ratings · AHRI 215236378
Ducted, 5 tons and up58.8(50 is the typical model of its size class) (higher)ICOO60AKwith ducted air handler IFOD60IK2 of 2 models have all five ratings · AHRI 21438955251.5(50 is the typical model of its size class)GPHH56041A*2 of 2 models have all five ratings · AHRI 215233043
Non-ducted, up to 1.5 tons86.7(50 is the typical model of its size class)ICOO09AKwith ductless indoor unit IFOH09IK12 of 12 models have all five ratings · AHRI 214389496No models in this size class
Non-ducted, 2 tons66.7(50 is the typical model of its size class)ICOO24AKwith ductless indoor unit IFOH24IK3 of 3 models have all five ratings · AHRI 214389499No models in this size class
Non-ducted, 2.5–3 tons72.3(50 is the typical model of its size class)ICMZ36DK9 of 9 models have all five ratings · AHRI 214389530No models in this size class
Non-ducted, 3.5–4.5 tons70.9(50 is the typical model of its size class)ICMZ48EK5 of 5 models have all five ratings · AHRI 214389533No models in this size class

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
RatingICONIC AIR SOLUTIONLegacy Systems
COP at 5°Fbeats 96% · 2.22ICOO24AKNon-ducted, 2 tonsbeats 94% · 2.51GPHH56041A*Ducted, 5 tons and up
Capacity retention at 5°Fbeats 96% · 110%ICOZ09AKDucted, up to 1.5 tonsbeats 28% · 42%GPHH56041A*Ducted, 5 tons and up
HSPF2beats 98% · 11.2ICOO24AKDucted, 2 tonsbeats 55% · 8.2GSZC704810A*Ducted, 3.5–4.5 tons
SEER2beats 99% · 20.9ICMZ48EKDucted, 3.5–4.5 tonsbeats 81% · 17.2GSZC704810A*Ducted, 3.5–4.5 tons
EER2beats 97% · 13.6ICOZ09AKDucted, up to 1.5 tonsbeats 92% · 12.5GSZB404810A*Ducted, 3.5–4.5 tons
Heating capacity at 5°Fbeats 96% · 20,000 Btu/hICMZ18BKNon-ducted, up to 1.5 tonsbeats 38% · 30,000 Btu/hGSZC706010A*Ducted, 3.5–4.5 tons

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