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Coast Air vs Olimpia Splendid heat pumps

Measured against models of the same size and duct type, Olimpia Splendid scores higher on 6 of the 6 ratings. Coast Air has 6 outdoor models, Olimpia Splendid has 6 outdoor models. Coast Air and Olimpia Splendid 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.
Coast Air and Olimpia Splendid 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, Olimpia Splendid scores higher on 6 of the 6 ratings.
  • Coast Air
  • Olimpia Splendid
  • Other ranked manufacturers
Coast AirOlimpia …

Source: AHRI Directory, NEEP · as of

Average peer percentile, raw median and rank among ranked manufacturers
RatingCoast AirOlimpia Splendid
Efficiency index50%median —55%median —
COP at 5°F52%median 1.9572%median 2.07
Capacity retention at 5°F16%median 63%32%median 66%
HSPF246%median 9.152%median 9.3
SEER254%median 21.558%median 21.9
EER248%median 12.559%median 12.8
Heating capacity at 5°F26%median 11,700 Btu/h34%median 15,415 Btu/h
Outdoor models66
AHRI certifications66

Share of models meeting each standard

Percent of each manufacturer’s models with a qualifying certification
StandardCoast AirOlimpia Splendid
CEE 2025 Tier 1 (Split ASHP)66.7%4 models83.3%5 models
CEE 2026 Tier 1 (Split ASHP)66.7%4 models66.7%4 models
CEE Advanced Tier (Split ASHP)0%0 models0%0 models
Xcel Energy Colorado cold-climate ASHP (2025)0%0 models33.3%2 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 · 3 groups where both have models
  • Coast Air
  • Olimpia Splendid
  • All models of the group
Non-ducted, up to 1.5 tons1.902,417 modelsNon-ducted, 2 tons1.87611 modelsNon-ducted, 2.5–3 tons1.85975 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 typeCoast AirOlimpia Splendid
Non-ducted, up to 1.5 tons3 · index 60%3 · index 68%
Non-ducted, 2 tons1 · index 51%1 · index 67%
Non-ducted, 2.5–3 tons2 · index 21%2 · index 31%

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 typeCoast AirCold-climate score, best modelOlimpia SplendidCold-climate score, best model
Non-ducted, up to 1.5 tonsNone on this board (0 of 3 models qualify)75.3(50 is the typical model of its size class)OS-CENIH18EIwith ductless indoor unit OS-SENIH18EI1 of 3 models qualify · AHRI 207506894
Non-ducted, 2 tonsNone on this board (0 of 1 models qualify)55.7(50 is the typical model of its size class)OS-CENIH24EIwith ductless indoor unit OS-SENIH24EI1 of 1 models qualify · AHRI 207506895
Non-ducted, 2.5–3 tonsNone on this board (0 of 2 models qualify)None on this board (0 of 2 models qualify)

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 typeCoast AirAll-around score, best modelOlimpia SplendidAll-around score, best model
Non-ducted, up to 1.5 tons72.3(50 is the typical model of its size class)A-CAD09-0Awith ductless indoor unit B-CAD09-0A3 of 3 models have all five ratings · AHRI 21431252678.7(50 is the typical model of its size class) (higher)OS-CENIH18EIwith ductless indoor unit OS-SENIH18EI3 of 3 models have all five ratings · AHRI 207506894
Non-ducted, 2 tons51.4(50 is the typical model of its size class)A-CAD24-1Awith ductless indoor unit B-CAD24-1A1 of 1 models have all five ratings · AHRI 21112648966.7(50 is the typical model of its size class) (higher)OS-CENIH24EIwith ductless indoor unit OS-SENIH24EI1 of 1 models have all five ratings · AHRI 207506895
Non-ducted, 2.5–3 tons20.9(50 is the typical model of its size class)A-CAD36-1Awith ductless indoor unit B-CAD36-1A1 of 2 models have all five ratings · AHRI 21112648835.0(50 is the typical model of its size class) (higher)OS-CENIH30EIwith ductless indoor unit OS-SENIH30EI2 of 2 models have all five ratings · AHRI 207506896

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
RatingCoast AirOlimpia Splendid
COP at 5°Fbeats 70% · 2.05A-CAD18-1ANon-ducted, up to 1.5 tonsbeats 96% · 2.22OS-CENIH24EINon-ducted, 2 tons
Capacity retention at 5°Fbeats 23% · 63%A-CAD24-1ANon-ducted, 2 tonsbeats 50% · 71%OS-CENIH18EINon-ducted, up to 1.5 tons
HSPF2beats 85% · 10.8A-CAD09-0ANon-ducted, up to 1.5 tonsbeats 79% · 10.5OS-CENIH18EINon-ducted, up to 1.5 tons
SEER2beats 87% · 25.0A-CAD09-0ANon-ducted, up to 1.5 tonsbeats 83% · 24.0OS-CENIH18EINon-ducted, up to 1.5 tons
EER2beats 89% · 14.5A-CAD09-0ANon-ducted, up to 1.5 tonsbeats 84% · 13.0OS-CENIH24EINon-ducted, 2 tons
Heating capacity at 5°Fbeats 63% · 11,700 Btu/hA-CAD18-1ANon-ducted, up to 1.5 tonsbeats 74% · 12,829 Btu/hOS-CENIH18EINon-ducted, up to 1.5 tons

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