SpecDirectory

Century MZ(L/R/B/P/T/K)042AvsTETCO TZS042*****1

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

TETCO TZS042*****1

EER

19.2–25.6BTU/Wh

COP

3.80–4.50

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

SpecCenturyTETCO
EER (best configuration)(BTU/Wh)25.725.6
EER (worst configuration)(BTU/Wh)20.419.2
COP (best configuration)4.404.50
COP (worst configuration)3.803.80

Configuration

SpecCenturyTETCO
Loop Types Rated22
Total Configurations Rated22
Model NameTranquility 24 Versatile Two-StageIon
RefrigerantOtherR-410A
View MZ(L/R/B/P/T/K)042A specs →View TZS042*****1 specs →

More comparisons

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