Mitsubishi Electric MXZ-4D30NL***vsWillis MZUHW30KR32-O
Side-by-side heat pump comparison
Mitsubishi Electric MXZ-4D30NL***
SEER2
16.1–21BTU/Wh
HSPF2
8.8–10BTU/Wh
Cooling Capacity
27400–28600BTU/hr
Cold Climate
Yes
Cold climate certified
Willis MZUHW30KR32-O
SEER2
18–21BTU/Wh
HSPF2
8.1–10BTU/Wh
Cooling Capacity
28400BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
The Mitsubishi Electric MXZ-4D30NL*** is larger at 28600 BTU/hr versus 28400 BTU/hr. Mitsubishi Electric MXZ-4D30NL*** uses a lower-impact refrigerant: R-454B (GWP 470) versus R-32 (GWP 675).
Efficiency
| Spec | Mitsubishi Electric | Willis |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 21 | 21 |
| SEER2 (worst combination)(BTU/Wh) | 16.1 | 18 |
| HSPF2 (best combination)(BTU/Wh) | 10 | 10 |
| HSPF2 (worst combination)(BTU/Wh) | 8.8 | 8.1 |
| EER2 (best combination)(BTU/Wh) | 13 | 13.6 |
| COP at 5 °F | 2.06 | 2.07 |
Capacity
| Spec | Mitsubishi Electric | Willis |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 28600 | 28400 |
| Cooling Capacity (min)(BTU/hr) | 27400 | 28400 |
| Heating at 47 °F(BTU/hr) | 28600 | 30000 |
| Heating at 17 °F(BTU/hr) | 18200 | 28000 |
| Heating at 5 °F(BTU/hr) | 19800 | 27000 |
Configuration
| Spec | Mitsubishi Electric | Willis |
|---|---|---|
| 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 | M-Series | MULTI HEAT |
| Indoor-Unit Combinations Rated | 3 | 3 |
Refrigerant
| Spec | Mitsubishi Electric | Willis |
|---|---|---|
| Type | R-454B | R-32 |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-32 (GWP:675 | Lower GWP) |