24MSZ-M-B
Multi MFG · HP - Split System
19–23.5BTU/Wh
9–11.1BTU/Wh
24000BTU/hr
Yes
Multi MFG 24MSZ-M-B: SEER2 23.5 BTU/Wh, better than 81% of air-source heat pumps (category median 20 BTU/Wh).
SEER2: better than 91% of the 1860 comparable models within 10% of this capacity. Their median is 19.2 BTU/Wh.
Where this model sits
Better than 81% of air-source heat pumps.
The Multi MFG 24MSZ-M-B is a 24000 BTU/hr hp - split system using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 23.5 BTU/Wh it ranks better than 82% 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 19.2 BTU/Wh. In this size range, comparable Midea models average 18.6 BTU/Wh and TOSOT models average 21 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 23.5BTU/Wh |
| SEER2 (worst combination) | 19BTU/Wh |
| HSPF2 (best combination) | 11.1BTU/Wh |
| HSPF2 (worst combination) | 9BTU/Wh |
| EER2 (best combination) | 13BTU/Wh |
| COP at 5 °F | 2.30 |
| Capacity | |
| Cooling Capacity (max) | 24000BTU/hr |
| Cooling Capacity (min) | 24000BTU/hr |
| Heating at 47 °F | 25000BTU/hr |
| Heating at 17 °F | 22400BTU/hr |
| Heating at 5 °F | 19000BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Split System |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | MSZ Series |
| Indoor-Unit Combinations Rated | 5 |
| Refrigerant | |
| Type | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) |
| Identifiers | |
| Model Number | 24MSZ-M-B |
| ENERGY STAR ID | ES_1152102_24MSZ-M-B_03262025053005_28216760026 |
| Partner | DBS Associates Inc. |
| Date Certified | 2026-05-28 |
| Available From | 2025-02-20 |
| Markets | United States, Canada |
Documentation
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