Mitsubishi GX 36,000 BTU
#3 in 36,000 BTUFull review
Mitsubishi’s standard line, quiet and efficient, for milder winters: it loses a good share of its heat in deep cold and stops heating at −5 °F.
The Mitsubishi GX 36,000 BTU is the better mini-split overall, rated 2.9 to 2.3. The Mitsubishi GX 36,000 BTU leads on warranty, cold weather and noise.
Senville Leto 36,000 BTU
#5 in 36,000 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 $2,099.99$2,099.99
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 Mitsubishi GX 36,000 BTU for warranty (10-year compressor, 10-year parts vs 5-year compressor, 5-year parts), cold weather (keeps 59% of its heat at 5 °F, heats down to -5 °F vs keeps 59% of its heat at 5 °F, heats down to 5 °F) and noise (indoor unit from 30 dB(A) vs indoor unit from 34 dB(A)).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 36,000 BTU mini-split; a clear win is highlighted. How we rank explains each one.
| Factor weight | Mitsubishi GX 36,000 BTU | Senville Leto 36,000 BTU |
|---|---|---|
| Overall rating | 2.9/5 | 2.3/5 |
| Cold weather 40% | 26 keeps 59% of its heat at 5 °F, heats down to -5 °F | 11 keeps 59% of its heat at 5 °F, heats down to 5 °F |
| Efficiency 30% | 17 8.5 HSPF2, 18.5 SEER2, COP 1.80 at 5 °F | 15 8.5 HSPF2, 18 SEER2, COP 1.80 at 5 °F |
| Warranty 20% | 100 10-year compressor, 10-year parts | 49 5-year compressor, 5-year parts |
| Noise 10% | 48 indoor unit from 30 dB(A) | 29 indoor unit from 34 dB(A) |
Specifications
| Mitsubishi GX 36,000 BTU | Senville Leto 36,000 BTU | |
|---|---|---|
| Capacity (certified) | ||
| Size (nominal) | 36,000 BTU | 36,000 BTU |
| Cooling at 95 °F | 33,800 Btu/h | 36,000 Btu/h |
| Heating at 47 °F | 35,200 Btu/h | 36,000 Btu/h |
| Heating at 17 °F (max) | 26,400 Btu/h | 25,000 Btu/h |
| Heating at 5 °F (max) | 20,600 Btu/h | 21,400 Btu/h |
| Heat kept at 5 °F | 59% | 59% |
| Price per 1,000 Btu/h at 5 °F | - | $98 |
| Efficiency (certified) | ||
| HSPF2 (Region IV) | 8.5 | 8.5 |
| SEER2 | 18.5 | 18 |
| EER2 | 8.4 | 9 |
| COP at 5 °F | 1.80 | 1.80 |
| ENERGY STAR | Not ENERGY STAR | Not ENERGY STAR |
| AHRI certificate | 215862739 | 215735293 |
| Operating range | ||
| Heats down to | -5 °F | 5 °F |
| Cooling range | 14 to 115 °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 100 ft | up to 213 ft |
| Voltage | 230 V | 230 V |
| Refrigerant | R-454B | R-454B |
| Indoor unit | MSZ-GX36NL | SENL-36CD-ILL |
| Outdoor unit | MUZ-GX36NL | SENL-36CD-OL |
| Build | ||
| Indoor noise | 30–53 dB(A) | 34–56.5 dB(A) |
| Outdoor noise | 57 dB(A) | 61.4 dB(A) |
| Wi-Fi | Built in | Built in |
| Room size (maker) | - | up to 1,800 sq ft |
| Weight | indoor 37 lb / outdoor 116 lb | indoor 40.3 lb / outdoor 142.9 lb |
| Warranty | 10 yr compressor, 10 yr parts | 5 yr compressor, 5 yr parts |
| Warranty with DIY install | No, a licensed installer is required | No, a licensed installer is required |
| Released | 2025-02 | - |