Choosing the right 36000 BTU 3 zone mini split system allows you to control temperatures in multiple rooms efficiently. These systems offer distinct indoor units optimally sized for different spaces, combined with one powerful outdoor condenser. Below is a summary table featuring top-rated models with their key characteristics to simplify your selection process.
| Model | Cooling Capacity | Zones & Indoor Units | Energy Efficiency | Smart Features | Climate Suitability |
|---|---|---|---|---|---|
| TOSOT 36,000 BTU Tri 3 Zone | 36,000 BTU | 3 zones (9,000+9,000+18,000 BTU) | 21 SEER2, Energy Star Certified | WiFi Enabled, Individual Controls | -22°F to 118°F |
| Cooper & Hunter 36,000 BTU Tri Zone | 36,000 BTU | 3 zones (9,000+9,000+18,000 BTU) | 23.9 SEER2 | Smart Port App Control | Down to -13°F |
| Della ODU Tri 3 Zone 27K BTU | 27,000 BTU | 3 zones (9,000+9,000+18,000 BTU) | 19 SEER2 | Works with Alexa & WiFi | Down to -4°F |
| DELLA 36K BTU ODU 2 Dual Zone | 36,000 BTU | 2 zones (12,000+24,000 BTU) | 19 SEER2 | WiFi & Alexa Compatible | Down to 5°F |
| Daikin 24,000 BTU 3-Zone Mini Split | 24,000 BTU | 3 zones (9,000+12,000+12,000 BTU) | 21 SEER2 | High Efficiency with R32 Refrigerant | 14°F to 115°F Cooling |
TOSOT 36,000 BTU Tri 3 Zone Mini Split System
The TOSOT Cosmo Series 36,000 BTU tri-zone mini split system features two 9,000 BTU indoor units and one 18,000 BTU indoor unit controlled individually for tailored comfort. This system offers temperature settings from 61°F to 86°F and different operating modes for each zone, enhancing usability.
Energy efficiency is excellent with a 21 SEER2 rating and a 10 HSPF2 heating factor, reducing energy costs by approximately 24% compared to older 16 SEER2 systems. Certified Energy Star and eligible for federal rebates, this model also impresses with its durable advanced compressor that performs well in extreme weather, operating from -22°F to 118°F. An intelligent defrost function further improves heating performance in cold climates.
Cooper & Hunter 36,000 BTU Tri Zone 23.9 SEER2 Mini Split
Cooper & Hunter’s 36,000 BTU tri-zone mini split includes three Olivia Series air handlers (two 9,000 and one 18,000 BTU) paired with a 23.9 SEER2 rating for high energy performance. It supports 208-230V electrical systems and includes 25-foot installation kits for convenience.
This unit features whisper-quiet operation ideal for bedrooms and commercial spaces. It also comes with smart port adapters that connect to the C&H Remote app, allowing you to control each zone’s temperature remotely via smartphone. The system operates efficiently in heating mode at temperatures as low as -13°F and holds UL Listing and AHRI certifications.
Della ODU Tri 3 Zone 27K BTU Heat Pump Mini Split
The Della Tri 3 Zone system offers three indoor units: two 9,000 BTU and one 18,000 BTU air handler, delivering precise room-by-room climate control. Rated at 19 SEER2 with a 208-230V power supply, it is Energy Efficient with a DC Inverter and heat pump capable of operation down to -4°F.
This model supports Alexa voice control and WiFi connection to enhance smart home integration. It maintains a quiet 50 dBA noise level and includes a full installation kit with copper line sets and drain pipes. Professional installation is required, especially for refrigerant charging adjustments after line set modifications.
DELLA 36K BTU 2 Zone WiFi Mini Split with Heat Pump
This dual-zone 36,000 BTU system from Della contains a 12,000 BTU and 24,000 BTU indoor unit, ideal for covering spaces up to 2,050 sq.ft. It boasts a 19 SEER2 efficiency and incorporates DC inverter technology for up to 30% power savings. The heat pump supports operation in temperatures as low as 5°F.
WiFi connectivity enables control via smart devices including Alexa. Included are two 16-foot copper line sets and installation kits. Note this system does not support the self-cleaning function despite the display option. Like other mini splits, professional installation including vacuuming and refrigerant adjustments is necessary.
Daikin 24,000 BTU 3-Zone Mini Split Air Conditioner
Daikin’s 3MXM24AVJU9 system provides three indoor units of 9,000 BTU, 12,000 BTU, and 12,000 BTU each with personalized temperature control. This refrigerant R-32 system offers high energy efficiency with 21 SEER2, 10 HSPF2, and 12 EER2 ratings.
It operates reliably in climates ranging from 14°F to 115°F for cooling and 5°F to 59.9°F for heating. The product comes with a generous 12-year manufacturer warranty and is AHRI certified. This system suits a variety of spaces where ductwork is impractical, including attics, basements, and sunrooms.
Buying Guide for 36000 BTU 3 Zone Mini Split Systems
When selecting a 36000 BTU 3 zone mini split system, consider these critical factors:
1. Number and Size of Indoor Units
Ensure the system’s indoor units match the cooling and heating loads of each room or zone. A typical tri-zone setup might have two smaller 9,000 BTU units and one larger 18,000 BTU unit. This balance optimizes efficiency and comfort across spaces of varying sizes.
2. Energy Efficiency Ratings (SEER, HSPF, EER)
Look for systems with a high Seasonal Energy Efficiency Ratio (SEER) of 19 or above and a Heating Seasonal Performance Factor (HSPF) indicative of energy savings during cold months. Higher ratings reduce operating costs and environmental impact.
3. Climate Operating Range
Check the outdoor unit’s operating temperature range. If you live in areas with extreme cold or hot climates, opt for systems rated to operate efficiently at those temperatures to ensure reliable year-round performance.
4. Smart Connectivity
WiFi-enabled or voice assistant compatible mini splits allow for remote control and scheduling, adding convenience and energy management capabilities. Consider if you want integration with your smart home ecosystem.
5. Installation Considerations
Professional installation is highly recommended for tri-zone systems involving multiple indoor units and copper line sets. Confirm if installation kits and drain pipes are included to simplify setup.
6. Noise Levels
Look for indoor units with low decibel ratings (around 50 dBA or less) for quiet operation, especially important in bedrooms or workspaces.
7. Manufacturer Reputation and Warranty
Choose models from reputable brands with strong customer support and good warranty terms (10 years or more for parts/compressor) to protect your investment.