SpecDirectory

EZ-48Z-M5B

DIYCOOL · HP - Mini or Multi Split

ENERGY STAR CertifiedAir-Source Heat Pumps →
SEER2

20–21.8BTU/Wh

HSPF2

10–10.5BTU/Wh

Cooling Capacity

43000BTU/hr

Cold Climate

Yes

Cold climate certified
ENERGY STAR Most Efficient

DIYCOOL EZ-48Z-M5B: SEER2 21.8 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).

SEER2: better than 78% of the 803 comparable models within 10% of this capacity. Their median is 16 BTU/Wh.

Where this model sits

Cooling43000BTU/hr
6000median 2400060000
SEER221.8BTU/Wh
15.2median 2035.1

The DIYCOOL EZ-48Z-M5B is a 43000 BTU/hr hp - mini or multi split using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 21.8 BTU/Wh it ranks around the middle of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is more efficient than the peer median of 16 BTU/Wh.

Specifications

Efficiency
SEER2 (best combination)21.8BTU/Wh
SEER2 (worst combination)20BTU/Wh
HSPF2 (best combination)10.5BTU/Wh
HSPF2 (worst combination)10BTU/Wh
EER2 (best combination)12BTU/Wh
COP at 5 °F2
Capacity
Cooling Capacity (max)43000BTU/hr
Cooling Capacity (min)43000BTU/hr
Heating at 47 °F48000BTU/hr
Heating at 17 °F37800BTU/hr
Heating at 5 °F37000BTU/hr
All 25 specifications
Configuration
Product TypeHP - Mini or Multi Split
Compressor StagingContinuously variable
Cold Climate CertifiedYes
Connected CapabilityNo
SeriesEZ Series
Indoor-Unit Combinations Rated3
Refrigerant
TypeR-454B
GWP RatingR-454B (GWP:470 | Lower GWP)
Identifiers
Model NumberEZ-48Z-M5B
ENERGY STAR IDES_1145863_EZ-48Z-M5B_02102025034321_29216980928
Partner1HVAC Energy, LLC
Date Certified2025-03-04
Available From2025-02-10
MarketsUnited States, Canada

Documentation

We link to manufacturer documentation at its original source rather than rehosting it, so you always get the current revision.

Similar Models