Cool or heat large zones with whisper-quiet performance, smart control, and a DIY install that skips the HVAC tech.
The MRCOOL DIY Multi-Zone 36,000 BTU Dual Zone Mini Split delivers powerful climate control to two large rooms—without hiring a contractor. With one 12K air handler (for up to 550 sq ft) and one 18K (for up to 800 sq ft), it’s ideal for open spaces, primary bedrooms, or converted garages.
This system comes pre-charged with R-454B refrigerant—no special tools or HVAC license required. Get reliable heating, cooling, and dehumidifying in every season, plus smart control through your phone, voice assistants, or remote.
Note: Pricing doesn't include the Line Sets. Available to purchase separately.
Coverage Area
Please refer to this coverage chart to determine the required BTUs for the area you wish to cool or heat.
- Square Feet: 180-375 | BTU = 9K
- Square Feet: 376-500 | BTU = 12K
- Square Feet: 501-750 | BTU = 18K
- Square Feet: 751-1,000 | BTU = 24K
- Square Feet: 1,001-1,500 | BTU = 36K
Note about condenser sizes versus total air handler capacity: The total capacity of the combined air handlers may exceed the capacity of the condenser in certain configurations. While this provides more flexibility in your setup, you will need to either shut off one of your air handlers (zones) or reduce the output of all zones.
Features
- Easy DIY Installation
- Simple to Use
- Multi-room Comfort
- Energy Efficient DC Inverter
- 100% Sealed System
- Gold Fin Condenser
- Eco Safe R-454B Refrigerant
- Smartphone App Controls
- Lifetime Technical Support
- Follow Me Feature
- Low Ambient Cooling
What's Included?
- 1 x MRCOOL 36k DIY 5th Generation 5 Zone Multi-Zone Mini-Split Condenser 230v
- 1 x MRCOOL 12k DIY 5th Generation Mini-Split Air Handler 230v
- 1 x MRCOOL 18k DIY 5th Generation Mini-split Air Handler 230v
