SpecDirectory

Century MZ(L/R/B/P/T/K)042AvsGeoComfort GCT048D

Side-by-side geothermal heat pump comparison

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

GeoComfort GCT048D

EER

20.6–25.6BTU/Wh

COP

4.10–4.80

Refrigerant

R-410A

Rated Across

2loop types

Key differences

Both models are closely matched on eer: 25.7 vs 25.6 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

SpecCenturyGeoComfort
EER (best configuration)(BTU/Wh)25.725.6
EER (worst configuration)(BTU/Wh)20.420.6
COP (best configuration)4.404.80
COP (worst configuration)3.804.10

Configuration

SpecCenturyGeoComfort
Loop Types Rated22
Total Configurations Rated22
Model NameTranquility 24 Versatile Two-StageCompass
RefrigerantOtherR-410A
View MZ(L/R/B/P/T/K)042A specs →View GCT048D specs →

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