Find the Right System for Your Home
Compare AURA and LETO Mini-Splits
Two great choices. Pick AURA when you need premium cold-climate performance or room to grow into multi-zone, or choose LETO when you don’t need ultra-low-temperature heating and want lower upfront cost for a single zone.
Installation by a licensed HVAC technician is required.
LETO
LETO (SENL/CD)
Value single-zone comfort 
- Single-zone only
- Heats down to 5 °F / −15 °C + base pan heater
- Refrigerant: R454B, pre-charged for 25 ft
- Efficiency: SEER 17–21.5
- Warranty: 5 years parts / 5 years compressor
- Certification: Not ENERGY STAR® certified
- Best for:
• Single rooms, garages, offices, or additions
• Moderate or coastal climates with mild winters
• Budget-friendly installations where ultra-low-temperature heating isn’t required
AURA
AURA (SENA/HF)
Premium all-season performance 
- Single- or multi-zone
- Heats down to −22 °F / −30 °C + base pan heater
- Refrigerant: R454B, pre-charged 25 ft per zone
- Efficiency: SEER up to 28
- Warranty: 5 years parts / 10 years compressor
- Certification: ENERGY STAR® certified (all AURA multi-zone and most single-zone models; LETO 36K single-zone is not ENERGY STAR®)
- Best for:
• Whole homes, cabins, or multi-room installations
• Cold or high-altitude climates with long winters
• Energy-efficient upgrades seeking high SEER and ENERGY STAR® performance
Quiet & Efficient
Both deliver whisper-quiet operation and efficient heating/cooling with R454B.
Scale Comfort
Mild winters and a single zone without deep-winter needs? LETO is a great fit.
Need stronger cold-climate performance or multi-zone flexibility? AURA scales up easily.
Built for Winters
AURA’s cold-climate design keeps heating when temps plunge.
Find my match
Winter temperatures
Spaces to condition
Priority