PolarWave EZ-27Z-M3BvsTempstar D5CMTAH27DAK
Side-by-side heat pump comparison
PolarWave EZ-27Z-M3B
SEER2
20–23BTU/Wh
HSPF2
9–9.5BTU/Wh
Cooling Capacity
26000BTU/hr
Cold Climate
Yes
Cold climate certified
Tempstar D5CMTAH27DAK
SEER2
18.5BTU/Wh
HSPF2
8.5BTU/Wh
Cooling Capacity
26400BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
PolarWave EZ-27Z-M3B is 20% more efficient at 23.0 BTU/Wh versus 18.5 BTU/Wh for the Tempstar D5CMTAH27DAK. The Tempstar D5CMTAH27DAK is larger at 26400 BTU/hr versus 26000 BTU/hr.
Efficiency
| Spec | PolarWave | Tempstar |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 23 | 18.5 |
| SEER2 (worst combination)(BTU/Wh) | 20 | 18.5 |
| HSPF2 (best combination)(BTU/Wh) | 9.5 | 8.5 |
| HSPF2 (worst combination)(BTU/Wh) | 9 | 8.5 |
| EER2 (best combination)(BTU/Wh) | 12 | 10.5 |
| COP at 5 °F | 2.10 | 2 |
Capacity
| Spec | PolarWave | Tempstar |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 26000 | 26400 |
| Cooling Capacity (min)(BTU/hr) | 26000 | 26400 |
| Heating at 47 °F(BTU/hr) | 27000 | 26400 |
| Heating at 17 °F(BTU/hr) | 19000 | 16000 |
| Heating at 5 °F(BTU/hr) | 19200 | 18600 |
Configuration
| Spec | PolarWave | Tempstar |
|---|---|---|
| Product Type | HP - Mini or Multi Split | HP - Mini or Multi Split |
| Compressor Staging | Continuously variable | Continuously variable |
| Cold Climate Certified | Yes | Yes |
| Connected Capability | No | No |
| Series | EZ Series | D5C Series |
| Indoor-Unit Combinations Rated | 3 | 1 |
Refrigerant
| Spec | PolarWave | Tempstar |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |