Our verdict
Pick the DELLA Vario 12,000 BTU 115V if lower running costs matter most and you prefer R-454B. Pick the TOSOT 12,000 BTU 115V Mini-Split if you prefer R-32 and it's going in a bedroom.
The central trade-off
Efficiency. The DELLA Vario 12,000 BTU 115V is rated 20.5 SEER2 against 20 for the TOSOT 12,000 BTU 115V Mini-Split, roughly 2% less cooling energy at the same output.
Refrigerant. R-454B in the DELLA Vario 12,000 BTU 115V, R-32 in the TOSOT 12,000 BTU 115V Mini-Split.
Noise. The TOSOT 12,000 BTU 115V Mini-Split lists 24 dB indoors at its quietest, against 42 dB.
Side by side
| Specification | DELLA Vario 12,000 BTU 115V | TOSOT 12,000 BTU 115V Mini-Split |
|---|---|---|
| Cooling (maker) | 12000 BTU | 12000 BTU |
| Heating (maker) | 12000 BTU | Not stated by the maker |
| SEER2 | 20.5 | 19 |
| HSPF2 | Not stated by the maker | Not stated by the maker |
| Heats down to (maker) | Not stated by the maker | Not stated by the maker |
| Voltage | 115 V | 115 V |
| Refrigerant | R-454B | R-32 |
| Room size (maker) | 550 sq ft | 1500 sq ft |
| Indoor noise (maker) | 42 db | 24 db |
| Line set included | Not stated by the maker | 16 ft. copper line set |
| Warranty | Not stated by the maker | 5-year warranty |
Values are the makers' published specifications. "Not stated" means the maker doesn't publish it.
Which should you choose?
Choose the DELLA Vario 12,000 BTU 115V if
- Lower running costs matter most
- You prefer R-454B