ENERGY STAR cold-climate list
TOSOT cold-climate mini-splits
The short answer
TOSOT has 464 ENERGY STAR cold-climate certified system combinations. The median one is rated 15,350 BTU/h at 5°F, which is 85% of its 47°F capacity (the all-brand median is 88%), with a median HSPF2 of 9. Among the 80 brands with 50+ systems, it ranks #52 for keeping capacity in the cold.
Capacity as it gets colder
Across the 464 systems, 5°F capacity runs from 7,400 to 46,500 BTU/h, so the model matters more than the badge. Refrigerants used: R-32, R-410A.
Highest-HSPF2 TOSOT systems
| Outdoor model | Indoor model | HSPF2 | BTU/h 47°F | BTU/h 17°F | BTU/h 5°F | COP 5°F | AHRI ref |
|---|---|---|---|---|---|---|---|
| TW09HAY32A1DO | TW09HAY32A1DI | 11.2 | 10,600 | 12,000 | 11,500 | 2.11 | 215405582 |
| TW09HAY32A1DOC | TW09HAY32A1DIC | 11.2 | 10,600 | 12,000 | 11,500 | 2.11 | 216030797 |
| TW09WH29D6DO | TW09WH29D6DI | 11.2 | 10,600 | 12,000 | 11,500 | 2.11 | 217120776 |
| TWH09AD32AO | TWH09AD32AI | 11.2 | 10,600 | 12,000 | 11,500 | 2.11 | 217992259 |
| TWH09AV29D6DO | TWH09AV29D6DI | 11.2 | 10,600 | 12,000 | 11,500 | 2.11 | 216426820 |
| SU-AORAKI9-115/O | SU-AORAKI9-115/I | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 217023699 |
| TAVCI7H1R09 | TAVEM7H1R09-S | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 216684157 |
| TW09HP32A2AO | TW09HCL32A5AI | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 215399269 |
| TW09HP32A2AO | TW09HP32A2AI | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 215405709 |
| TW09WH25A1AO | TW09WH25A1AI | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 217120763 |
| TWH09AG25A6AO | TWH09AG25A6AI | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 216030795 |
| TWH09AUC25R32A1AO | TWH09AUC25R32A1AI | 10.5 | 10,000 | 10,500 | 9,500 | 1.83 | 218028406 |
Check the AHRI reference at ahridirectory.org before buying. We do not list prices: none of our sources publishes them.
Keep going
- Put your ZIP into the cost-to-heat calculator to see what a median cold-climate system would cost to run where you live.
- Sizing: how many BTU/h you need at your design temperature, compared with the 5°F capacity above.
- Incentives and rebates and DIY vs installed for the buying decision.
- Compare with similar brands: Mitsubishi Electric, Lennox, Innovair, GREE.
Questions people ask
How many TOSOT mini-splits are ENERGY STAR cold-climate certified?
TOSOT has 464 certified cold-climate system combinations across 227 outdoor models in the EPA's ENERGY STAR mini-split list, first certified 2025-01-20 and most recently 2026-10-20.
How well do TOSOT units heat at 5°F?
The median TOSOT system is rated 15,350 BTU/h at 5°F against 18,000 BTU/h at 47°F, or 85% (the all-brand median is 88%). Median COP at 5°F is 1.88.