MXZ-SM48NL-**
Mitsubishi Electric · HP - Mini or Multi Split
17.1–23BTU/Wh
9–10.4BTU/Wh
48000BTU/hr
Yes
Mitsubishi Electric MXZ-SM48NL-**: SEER2 23 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).
SEER2: better than 87% of the 1339 comparable models within 10% of this capacity. Their median is 18 BTU/Wh.
Where this model sits
The Mitsubishi Electric MXZ-SM48NL-** is a 48000 BTU/hr hp - mini or multi split using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 23 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 18 BTU/Wh. In this size range, comparable Midea models average 18.8 BTU/Wh and Airquest models average 18.4 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 23BTU/Wh |
| SEER2 (worst combination) | 17.1BTU/Wh |
| HSPF2 (best combination) | 10.4BTU/Wh |
| HSPF2 (worst combination) | 9BTU/Wh |
| EER2 (best combination) | 12BTU/Wh |
| COP at 5 °F | 2.10 |
| Capacity | |
| Cooling Capacity (max) | 48000BTU/hr |
| Cooling Capacity (min) | 48000BTU/hr |
| Heating at 47 °F | 50000BTU/hr |
| Heating at 17 °F | 33400BTU/hr |
| Heating at 5 °F | 35400BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Mini or Multi Split |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | Smart Multi |
| Indoor-Unit Combinations Rated | 5 |
| Refrigerant | |
| Type | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) |
| Identifiers | |
| Model Number | MXZ-SM48NL-** |
| ENERGY STAR ID | ES_14817_MXZ-SM48NL-**_03262025010025_29217177372 |
| Partner | Mitsubishi Electric U.S. HVAC Division |
| Date Certified | 2026-04-17 |
| Available From | 2026-04-07 |
| Markets | United States |
Documentation
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