The Pioneer Diamante Essenza 11,500 BTU Ductless Mini Split 230V and the Senville Leto 12,000 BTU Mini Split Heat Pump 115V side by side on one honest scale: cooling, room coverage, noise, energy rating and live price, with which one actually fits your room. Every number is the manufacturer's own or a live retailer price. We never invent a spec.
The verdict
For your 150 sq ft room, neither is an ideal fit: the Pioneer Diamante Essenza 11,500 BTU Ductless Mini Split 230V is more cooling than the room needs and the Senville Leto 12,000 BTU Mini Split Heat Pump 115V is more cooling than the room needs. On the numbers, the Senville Leto 12,000 BTU Mini Split Heat Pump 115V is quieter at 45 dB(A), while the Pioneer Diamante Essenza 11,500 BTU Ductless Mini Split 230V is cheaper at $664. Compare their specs side by side below, or try a different room size.
![]() Pioneer Diamante Essenza 11,500 BTU Ductless Mini Split 230VSplitSEER2 17 In stock $664 Buy at Sylvane | ![]() Senville Leto 12,000 BTU Mini Split Heat Pump 115VSplitSEER2 21.2 In stock $817 Package: 16 ft line set Buy at Sylvane | |
|---|---|---|
| Cooling & fit | ||
| Room fit | More than you need for 13.9 m² | More than you need for 13.9 m² |
| Cooling power | 11,500 BTU · 3.4 kW | 12,000 BTU · 3.5 kWBest |
| Covers | up to 500 sq ft | up to 700 sq ft |
| Comfort | ||
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Both units are scored on the exact same scale, from the manufacturer's own published specs and the live retailer price where we have one. Room fit uses the official ENERGY STAR sizing chart, or an estimate from cooling power when a maker publishes no coverage. Where the two efficiency scales are not comparable, we never crown a winner. Nobody can pay for placement.
Read our full methodologyThe bigger questions behind this comparison, answered from live prices and real specs.
| Indoor noise | 55 dB(A)about as loud as a dishwasher | 45 dB(A)about as loud as a refrigeratorBest |
|---|
| Indoor unit size | CompactBest | Slim |
|---|
| Efficiency | ||
| Energy rating | SEER2 17 | SEER2 21.2 |
|---|---|---|
| SEER2 (cooling) | 17 | 21.2 |
| Practicalities | ||
| Heats too | Yes | Yes |
|---|---|---|
| Heating output | 11,500 BTU | 12,500 BTU |
| Heats down to | 5°F outdoors | 5°F outdoors |
| Refrigerant | R-32 | R-454B |
| Install | Certified installer ($1,500-4,000 fitted, est.) | Certified installer ($1,500-4,000 fitted, est.) |
| Outdoor unit | Yes | Yes |
| Warranty | 5-Year Parts and Compressor Warranty (With Registration) | 5-Year Limited Warranty |
| Price | ||
| Price | $664Best | $817 |
|---|---|---|
| Package | - | 16 ft line set |