SpecDirectory

ASTON 103H030**1vsCentury MZ(L/R/B/P/T/K)042A

Side-by-side geothermal heat pump comparison

ASTON 103H030**1

EER

18.9–25.6BTU/Wh

COP

3.90–4.80

Refrigerant

R-410A

Rated Across

2loop types

Century MZ(L/R/B/P/T/K)042A

EER

20.4–25.7BTU/Wh

COP

3.80–4.40

Refrigerant

Other

Rated Across

2loop types

Key differences

Both models are closely matched on eer: 25.6 vs 25.7 BTU/Wh. The Century MZ(L/R/B/P/T/K)042A is larger at 25.7 BTU/Wh versus 25.6 BTU/Wh.

Efficiency

SpecASTONCentury
EER (best configuration)(BTU/Wh)25.625.7
EER (worst configuration)(BTU/Wh)18.920.4
COP (best configuration)4.804.40
COP (worst configuration)3.903.80

Configuration

SpecASTONCentury
Loop Types Rated22
Total Configurations Rated22
Model NameAstonTranquility 24 Versatile Two-Stage
RefrigerantR-410AOther
View 103H030**1 specs →View MZ(L/R/B/P/T/K)042A specs →

More comparisons

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