M5THS2312A11NA*
Ameristar · HP - Mini or Multi Split
24BTU/Wh
10BTU/Wh
12000BTU/hr
Yes
Ameristar M5THS2312A11NA*: SEER2 24 BTU/Wh, better than 84% of air-source heat pumps (category median 20 BTU/Wh).
Where this model sits
Better than 84% of air-source heat pumps.
The Ameristar M5THS2312A11NA* is a 12000 BTU/hr hp - mini or multi split using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 24 BTU/Wh it ranks better than 84% of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is about as efficient as the peer median of 23.5 BTU/Wh. In this size range, comparable GREE models average 24.3 BTU/Wh and Hisense models average 23 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 24BTU/Wh |
| SEER2 (worst combination) | 24BTU/Wh |
| HSPF2 (best combination) | 10BTU/Wh |
| HSPF2 (worst combination) | 10BTU/Wh |
| EER2 (best combination) | 13BTU/Wh |
| COP at 5 °F | 2.10 |
| Capacity | |
| Cooling Capacity (max) | 12000BTU/hr |
| Cooling Capacity (min) | 12000BTU/hr |
| Heating at 47 °F | 12600BTU/hr |
| Heating at 17 °F | 10000BTU/hr |
| Heating at 5 °F | 9100BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Mini or Multi Split |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | 23U Series |
| Indoor-Unit Combinations Rated | 1 |
| Refrigerant | |
| Type | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) |
| Identifiers | |
| Model Number | M5THS2312A11NA* |
| ENERGY STAR ID | ES_1075581_M5THS2312A11NA*_01192026053001_29218067095 |
| Partner | Trane and American Standard Heating and Air Conditioning |
| Date Certified | 2026-01-30 |
| Available From | 2026-01-18 |
| Markets | United States, Canada |
Documentation
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