Senville Leto 12,000 BTU
#27 in 12,000 BTUFull review
Senville’s budget line, for cooling and mild winters: it stops heating below 5 °F, and the 5-year warranty needs a licensed installer.
Senville $869.99$869.99
The Senville Leto 12,000 BTU is the better mini-split overall, rated 2.8 to 2.6. The Senville Leto 12,000 BTU leads on cold weather and efficiency. The Senville Leto 12,000 BTU 115V wins on noise. The Senville Leto 12,000 BTU 115V costs $70 less ($799.99 vs $869.99).
Senville Leto 12,000 BTU 115V
#28 in 12,000 BTUFull review
Senville’s budget line, for cooling and mild winters: it stops heating below 5 °F, and the 5-year warranty needs a licensed installer.
Senville $799.99$799.99
Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Senville Leto 12,000 BTU for cold weather (keeps 67% of its heat at 5 °F, heats down to 5 °F vs keeps 55% of its heat at 5 °F, heats down to 5 °F) and efficiency (9.1 HSPF2, 21.3 SEER2, COP 1.91 at 5 °F vs 8.7 HSPF2, 21.2 SEER2, COP 1.84 at 5 °F).
- Choose the Senville Leto 12,000 BTU 115V for noise (indoor unit from 17.5 dB(A) vs indoor unit from 22.5 dB(A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 12,000 BTU mini-split; a clear win is highlighted. How we rank explains each one.
| Factor weight | Senville Leto 12,000 BTU | Senville Leto 12,000 BTU 115V |
|---|---|---|
| Overall rating | 2.8/5 | 2.6/5 |
| Cold weather 40% | 20 keeps 67% of its heat at 5 °F, heats down to 5 °F | 6 keeps 55% of its heat at 5 °F, heats down to 5 °F |
| Efficiency 30% | 39 9.1 HSPF2, 21.3 SEER2, COP 1.91 at 5 °F | 30 8.7 HSPF2, 21.2 SEER2, COP 1.84 at 5 °F |
| Warranty 20% | 49 5-year compressor, 5-year parts | 49 5-year compressor, 5-year parts |
| Noise 10% | 83 indoor unit from 22.5 dB(A) | 100 indoor unit from 17.5 dB(A) |
Specifications
| Senville Leto 12,000 BTU | Senville Leto 12,000 BTU 115V | |
|---|---|---|
| Capacity (certified) | ||
| Size (nominal) | 12,000 BTU | 12,000 BTU |
| Cooling at 95 °F | 12,000 Btu/h | 12,000 Btu/h |
| Heating at 47 °F | 12,000 Btu/h | 12,000 Btu/h |
| Heating at 17 °F (max) | 9,300 Btu/h | 9,000 Btu/h |
| Heating at 5 °F (max) | 8,000 Btu/h | 6,600 Btu/h |
| Heat kept at 5 °F | 67% | 55% |
| Price per 1,000 Btu/h at 5 °F | $109 | $121 |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | 9.1 | 8.7 |
| SEER2 | 21.3 | 21.2 |
| EER2 | 10.8 | 10.1 |
| COP at 5 °F | 1.91 | 1.84 |
| ENERGY STAR | Not ENERGY STAR | Not ENERGY STAR |
| AHRI certificate | 215735289 | 215735287 |
| Operating range | ||
| Heats down to | 5 °F | 5 °F |
| Installation | ||
| Installed by | Professional (sold through installers) | Professional (sold through installers) |
| Line set connection | Flare fittings (vacuum pump needed) | Flare fittings (vacuum pump needed) |
| Line set | up to 82 ft | up to 82 ft |
| Voltage | 230 V | 115 V |
| Refrigerant | R-454B | R-454B |
| Indoor unit | SENL-12CD220-ILL | SENL-12CD-ILL |
| Outdoor unit | SENL-12CD220-OL | SENL-12CD-OL |
| Build | ||
| Indoor noise | 22.5–44 dB(A) | 17.5–45 dB(A) |
| Outdoor noise | 54 dB(A) | 54 dB(A) |
| Wi-Fi | Built in | Built in |
| Room size (maker) | up to 750 sq ft | up to 750 sq ft |
| Weight | indoor 19.4 lb / outdoor 59.1 lb | indoor 19.4 lb / outdoor 61.3 lb |
| Warranty | 5 yr compressor, 5 yr parts | 5 yr compressor, 5 yr parts |
| Warranty with DIY install | No, a licensed installer is required | No, a licensed installer is required |