6 Best Alternatives to the TOSOT 36K BTU 2-Zone Mini Split (2026)
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The TOSOT 36k btu 2 zone mini split offers high efficiency and flexible cooling for two distinct spaces. Its 21 SEER2 rating and smart app control make it a strong choice for homeowners. However, you might need different specifications for your specific layout. Some users prefer equal zone sizes or a different unit configuration.
We selected 6 alternatives because their specs overlap with the original TOSOT model. These options include various brands like Della and Daikin with different BTU distributions. You might want a ducted unit for a hidden look or a cassette for commercial ceilings. This list helps you compare dual-zone systems that fit your unique cooling needs without sacrificing performance.
Our top pick: TOSOT 36K BTU 2-Zone Mini Split.
How alternatives compare to TOSOT
TOSOT 36K BTU 2-Zone Mini Split
This TOSOT Cosmo model shares the same 36,000 BTU dual-zone capacity and 21 SEER2 efficiency as the original. It uses a 12,000 BTU unit paired with a 24,000 BTU unit, just like the reference product. The key difference is the inclusion of a 299-pound weight specification in the data, suggesting a robust build for heavy-duty use. It offers identical smart control via the Gree+ app and voice commands. You should choose this premium alternative if you want the same flexible zoning and extreme weather resilience but prefer a model explicitly marketed for mixed room sizes with a focus on high-end performance.
DELLA 17K BTU Ducted Mini Split
The Della 17K BTU ducted mini split differs significantly by offering concealed ceiling installation rather than wall-mounted units. It provides dual-zone cooling with two 12,000 BTU indoor units, totaling 24,000 BTU, which is less capacity than the TOSOT’s 36,000 BTU. It maintains a high 21 SEER2 efficiency rating and includes smart app control. The compact dimensions, measuring 7.87 inches in height, make it ideal for tight spaces. Pick this option if you prioritize a clean, hidden aesthetic and smart connectivity over raw cooling power for large areas. It sacrifices capacity for a discreet architectural fit.
Della 28K BTU Dual Zone Mini Split
This Della 28K BTU dual-zone system offers balanced 18,000 BTU zones, totaling 36,000 BTU, matching the original’s total capacity. However, it splits the power evenly between two rooms, unlike the TOSOT’s 12K/24K split. It features a 20 SEER2 efficiency rating, slightly lower than the TOSOT’s 21 SEER2. The unit includes a line set and emphasizes quiet operation. Choose this budget-friendly alternative if you need equal cooling distribution for two similar-sized rooms. It gives up the flexible sizing of the TOSOT but provides a complete installation kit and balanced performance for standard residential layouts.
Daikin Oterra 18,000 BTU 21 SEER2
The Daikin Oterra is a single-zone 18,000 BTU system, providing half the total cooling capacity of the TOSOT 36K dual-zone unit. It achieves a 21 SEER2 efficiency rating, matching the original’s energy performance. The data does not mention smart app control or voice commands, focusing instead on reliable heating and cooling without digital features. It comes as a complete kit. Select this alternative if you only need to condition a single large room rather than two separate spaces. It offers high efficiency and air quality in a single zone, sacrificing multi-room flexibility for simplicity and focused performance.
DELLA 18K BTU 2-Zone Cassette
This Della 18K BTU dual-zone cassette unit provides concealed ceiling cooling with two 9,000 BTU indoor units. It has a lower total capacity of 18,000 BTU compared to the TOSOT’s 36,000 BTU. The data does not specify an SEER2 rating, but it is designed for quiet operation in commercial or residential settings. It supports smart app control for convenient management. Choose this option if you need high-efficiency, hidden cooling for smaller zones where wall-mounted units are not feasible. It gives up the high capacity of the TOSOT but offers a specialized installation method for drop ceilings or commercial spaces.
DELLA 27,000 BTU 2-Zone Ceiling Cassette
The Della 27K BTU dual-zone cassette delivers concealed cooling with two 18,000 BTU indoor units. It offers less total capacity than the TOSOT’s 36,000 BTU system. The data does not list an SEER2 rating, but it is built for high-efficiency performance in commercial environments. It includes a line set for easier installation. This model is ideal for users with drop ceilings who need balanced cooling for large areas. Pick this alternative if you prioritize a hidden aesthetic and commercial-grade durability over the maximum cooling power and flexible zoning options provided by the TOSOT 36K dual-zone mini split.
Quick picks
Our 7 picks
TOSOT 36K BTU 2-Zone Mini Split
Best for: cooling two rooms with different size requirements
- Cooling Capacity
- 36,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Gree+ app, voice control
View on Amazon: TOSOT 36K BTU 2-Zone Mini Split Affiliate link
The TOSOT Cosmo 36,000 BTU 2-Zone system pairs a 12,000 BTU head with a 24,000 BTU head. It delivers 21 SEER2 efficiency and operates from -22℉ to 118℉. You control temperatures via the Gree+ app or voice commands. The unit includes a 16.4-foot copper pipe set. It is designed for two rooms with individual temperature settings between 61-86℉.
Pros
- High 21 SEER2 efficiency rating for energy savings
- Operates in extreme temperatures from -22℉ to 118℉
- Smart control via Gree+ app and voice commands
- Includes 16.4-foot copper pipe set for installation
Cons
- Lacks a dedicated remote control in the included accessories
- Requires separate purchase of the power cord
- Outdoor unit is bulky at 40.2 inches long
Good fit if
- You need to cool two rooms with different sizes
- You want smart app control and voice commands
- You live in an area with extreme heat or cold
Skip if
- You prefer a single-zone unit for one room
- You need a system with a included remote
- You have limited outdoor wall space for a large unit
Verdict: TOSOT 36K BTU 2-Zone Cosmo Mini Split is ideal for homeowners needing flexible cooling for two distinct spaces with high efficiency. It suits those who value smart connectivity and extreme weather performance.
TOSOT 36K BTU 2-Zone Mini Split
Best for: Zoned cooling for mixed room sizes
- Cooling Capacity
- 36,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Gree+ app, Alexa, Google Home
View on Amazon: TOSOT 36K BTU 2-Zone Mini Split Affiliate link
This dual-zone system pairs a 12,000 BTU indoor unit with a 24,000 BTU unit, powered by a 36,000 BTU outdoor condenser. It offers 21 SEER2 efficiency and R32 refrigerant for reliable cooling down to 118 °F and heating in -22 °F conditions. The unit supports smart control via the Gree+ app and voice assistants. It is designed for professional installation with a 16 ft line set included.
Pros
- Dual-zone configuration with 12K and 24K BTU indoor handlers
- 21 SEER2 energy efficiency rating
- Operates in temperatures from -22 °F to 118 °F
- Smart app and voice control compatibility
Cons
- Heavy 299-pound outdoor unit
- Requires professional HVAC installation
- Limited to two indoor zones
Good fit if
- You need independent temperature control for a bedroom and a large living area
- You want a heat pump that works in very cold winters
- You prefer smart scheduling via a mobile app
Skip if
- You are looking for a DIY-friendly setup
- You need to control more than two rooms independently
- You require a lighter or more compact outdoor unit
Verdict: TOSOT 36K BTU 2 Zone Mini Split delivers robust dual-zone performance with high efficiency ratings. It fits homes with distinct heating and cooling needs in separate large and small spaces. This unit is ideal for buyers who prioritize wide temperature operating ranges and smart home integration.
DELLA 17K BTU Ducted Mini Split
Best for: hidden ceiling installations with smart control
- Cooling Capacity
- 17,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 208-230V
- Coverage Area
- up to 900 Sq. Ft
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
View on Amazon: DELLA 17K BTU Ducted Mini Split Affiliate link
This concealed ducted mini split offers 17,000 BTU total cooling across two 12,000 BTU zones. It achieves 21 SEER2 efficiency and includes a built-in condensate pump for flexible installation. The unit supports the DELLA App and Alexa for remote control. It is designed for spaces up to 900 square feet. You should choose this if you need a hidden indoor unit that maintains a clean ceiling look while providing reliable heating and cooling.
Pros
- 21 SEER2 energy efficiency rating
- Built-in condensate pump for drainage
- Supports DELLA App and Alexa control
- Operates quietly at 32 dB
- Heating down to -13°F
Cons
- Lower 17,000 BTU capacity than the 36K BTU Tosot
- Requires professional installation
- Refrigerant adjustment needed for line sets over 25 ft
Good fit if
- You want a hidden ceiling installation
- You need app-based remote control
- You have a space under 900 sq ft
Skip if
- You need high capacity for large rooms
- You prefer a DIY setup
- You require a standard wall-mounted unit
Verdict: DELLA 17K BTU 2-Zone Ducted Mini Split is a practical choice for homeowners who prioritize a clean, hidden aesthetic and smart app control over raw cooling power.
Della 28K BTU Dual Zone Mini Split
Best for: Equal 18K BTU zones and cold weather operation
- Cooling Capacity
- 28,000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 2,000 sq ft
- Number of Zones
- Dual Zone
- Heat Pump
- Heat Pump
View on Amazon: Della 28K BTU Dual Zone Mini Split Affiliate link
This unit offers 28,000 BTU of cooling across two zones, with each indoor handler rated at 18,000 BTU. It achieves a 20 SEER2 efficiency rating and includes R454B refrigerant for environmental compliance. The system operates quietly at 32 dBa and functions in temperatures down to 5°F. It covers up to 2,000 square feet and comes with two 16-foot installation kits. Professional installation is required.
Pros
- 20 SEER2 efficiency rating
- Quiet operation at 32 dBa
- Includes two 16ft installation kits
- Uses R454B refrigerant
- Operates in temperatures down to 5°F
Cons
- Lower 20 SEER2 rating compared to 21 or 24 SEER2 competitors
- Total cooling capacity is 28,000 BTU, less than the 36,000 BTU TOSOT alternative
- Lacks self-cleaning function despite display option
Good fit if
- You need two separate zones with equal 18,000 BTU capacity
- You want a system that operates in very cold environments
- You prefer R454B refrigerant for environmental reasons
Skip if
- You require the highest possible efficiency rating available
- You need a total capacity of 36,000 BTU or more
- You want a self-cleaning feature for the indoor units
Verdict: DELLA 28K BTU 2-Zone Mini Split provides balanced 18,000 BTU zones and quiet operation, making it a solid choice for spaces needing equal cooling distribution rather than maximum raw capacity.
Daikin Oterra 18,000 BTU 21 SEER2
Best for: single rooms needing efficient heating and cooling
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 21 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 1,000 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 45 × 40 × 100 inches
View on Amazon: Daikin Oterra 18,000 BTU 21 SEER2 Affiliate link
The Daikin Oterra 18,000 BTU mini split offers 21 SEER2 efficiency with R32 refrigerant. It delivers 18,100 BTUs of cooling and 21,600 BTUs of heating. The unit covers up to 1,000 square feet. It includes a 16-foot installation kit and a Titanium Apatite air purifying filter. This single-zone system suits homeowners seeking reliable year-round climate control in moderate spaces.
Pros
- 21 SEER2 energy efficiency rating
- R32 refrigerant for environmental friendliness
- Titanium Apatite photocatalytic air purifying filter
- Includes 16-foot installation kit with refrigerant lines
- Anti-corrosion treatment on the heat exchanger
Cons
- Single-zone capacity limits multi-room coverage
- Heating operation stops at 64.5°F outdoor temperature
- No smart app connectivity listed in specifications
Good fit if
- You need efficient cooling for a single room up to 1,000 sq. ft.
- You want a heat pump with strong heating output
- You prefer a system with included installation hardware
Skip if
- You require multi-zone cooling for separate rooms
- You need heating performance in very cold climates below 5°F
- You want smart home integration via an app
Verdict: Daikin 18,000 BTU Oterra Heat Pump is a solid single-zone choice for those prioritizing efficiency and air quality in a single space. It fits buyers who want a complete kit and reliable heating without needing smart features.
DELLA 18K BTU 2-Zone Cassette
Best for: smaller zones and commercial ceiling installations
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 24 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 800 sq ft
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
View on Amazon: DELLA 18K BTU 2-Zone Cassette Affiliate link
This ceiling cassette unit offers 18,000 BTU of cooling across two zones, with 9,000 BTU per indoor head. It features a high 24 SEER2 efficiency rating and operates quietly at 32 dB. The system includes smart app control and voice assistant compatibility. It is designed for commercial or residential spaces up to 800 square feet, providing even 360-degree airflow from a concealed ceiling mount.
Pros
- 24 SEER2 efficiency rating for strong performance
- Quiet operation at just 32 dB(A)
- Smart control via DELLA App and voice assistants
- 360-degree surround airflow for even distribution
Cons
- Lower per-zone capacity (9K BTU) compared to competitors
- Requires professional installation and line set evacuation
- Ceiling cassette form factor limits placement options
Good fit if
- You need a concealed, ceiling-mounted unit for a commercial space
- You prioritize high energy efficiency with a 24 SEER2 rating
- You want smart app control and voice assistant integration
Skip if
- You prefer a higher per-zone cooling capacity than 9,000 BTU
- You are looking for a DIY-friendly installation without professional help
- You need a wall-mounted unit rather than a ceiling cassette
Verdict: DELLA 18K BTU 2-Zone Ceiling Cassette is a high-efficiency, quiet option for users who need concealed cooling in smaller zones. It fits best in commercial settings or homes where ceiling installation is feasible and smart control is a priority.
DELLA 27,000 BTU 2-Zone Ceiling Cassette
Best for: Ceiling-mounted comfort in commercial spaces
- Cooling Capacity
- 27,000 BTU
- Efficiency Rating
- 24 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 2000 sq ft
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
View on Amazon: DELLA 27,000 BTU 2-Zone Ceiling Cassette Affiliate link
This ceiling cassette mini split delivers 27,000 BTU across two 18,000 BTU zones. It features a 24 SEER2 efficiency rating and operates as a heat pump down to -13°F. The indoor units provide 360-degree airflow and fit into suspended ceilings. It covers up to 2,000 square feet with independent zone control. This system suits commercial spaces or homes with drop ceilings where concealed, even air distribution is a priority.
Pros
- 24 SEER2 efficiency rating for strong energy performance
- 360-degree surround airflow for even room distribution
- Heat pump operation down to -13°F
- Includes 2 x 25 ft copper pipes and installation kit
Cons
- Professional installation is mandatory
- Indoor units are ceiling-mounted, requiring drop ceilings
- Performance may slow if all zones run at full capacity
Good fit if
- You have a suspended ceiling for indoor units
- You need even air distribution in commercial spaces
- You want independent control for two large zones
Skip if
- You prefer wall-mounted indoor units
- You are attempting a DIY installation
- You need single-zone cooling only
Verdict: DELLA 27K BTU 2-Zone Cassette is best for users with drop ceilings who need high-efficiency, concealed cooling for large commercial or residential areas.
Specifications side by side
| Spec | TOSOT 36K BTU 2-Zone Mini Split | TOSOT 36K BTU 2-Zone Mini Split | DELLA 17K BTU Ducted Mini Split | Della 28K BTU Dual Zone Mini Split | Daikin Oterra 18,000 BTU 21 SEER2 | DELLA 18K BTU 2-Zone Cassette | DELLA 27,000 BTU 2-Zone Ceiling Cassette |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 36,000 BTU | 36,000 BTU | 17,000 BTU | 28,000 BTU | 18,000 BTU | 18,000 BTU | 27,000 BTU |
| Efficiency Rating | 21 SEER2 | 21 SEER2 | 21 SEER2 | 20 SEER2 | 21 SEER2 | 24 SEER2 | 24 SEER2 |
| Voltage | 230V | 230V | 208-230V | 208-230V | 230V | 208-230V | 208-230V |
| Coverage Area | not stated | not stated | up to 900 Sq. Ft | Up to 2,000 sq ft | Up to 1,000 sq. ft. | Up to 800 sq ft | Up to 2000 sq ft |
| Number of Zones | 2 Zone | 2 Zone | 2 Zone | Dual Zone | not stated | 2 Zone | 2 Zone |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | WiFi, Gree+ app, voice control | WiFi, Gree+ app, Alexa, Google Home | WiFi, Alexa, DELLA App | Wi-Fi, Alexa | not stated | App, Voice Assistant | not stated |
| Mounting Type | not stated | not stated | not stated | Wall Mount | not stated | not stated | not stated |
| Smart Control | Wi-Fi | Wi-Fi | Wi-Fi, Alexa | Wi-Fi, Alexa | not stated | not stated | not stated |
| Size | 36,000 BTU(Dual)12+24 | 36,000 BTU(2) 12+24 | 2 Zone - 17000 BTU 12+12 | 2 Zone 28000 BTU 18+18 | 18,000 BTU | 2 Zone 18000 BTU 9+9 | 2 Zone 27000 BTU 18+18 |
| Dimensions | 40.2 × 16.8 × 32.5 inches | 40.2 × 16.8 × 32.5 inches | 19.3 × 27.5 × 7.87 inches | 8.69 × 39.8 × 12.4 inches | 45 × 40 × 100 inches | 22.5 × 22.5 × 9.63 inches | 22.5 × 22.5 × 9.63 inches |
| Weight | not stated | 299 pounds | 33.1 pounds | 27.6 pounds | 30 pounds | 32 pounds | 32 pounds |
| Color | White | White | White without Line set | White with Line set | White | White without Line set | White with Line set |
| Model | 811820027012 | TST-MZ-C36-D1224 | 1D2-DC+D1212-X | 1D3-TL+D1818 | RXF18BVJU9 + FTXF18BVJU9 | 1D2-CC+D99-X | 1D3-CC+D1818 |
If you need a smaller dual-zone setup, review specifications for bangbangji 2 in 1 mini alternatives to compare capacities.
Frequently asked questions
Which mini split offers equal cooling for two rooms?
The Della 28K BTU Dual Zone Mini Split is designed for balanced output. It provides two identical 18,000 BTU zones. This setup is ideal when you need uniform cooling for spaces of similar size. It operates at 20 SEER2 efficiency and includes a line set for easier installation.
What is the most efficient single-zone option available?
The Daikin Oterra 18,000 BTU unit offers 21 SEER2 efficiency. It is a single-zone heat pump designed for one room. This model prioritizes reliable heating and cooling without complex zoning. It comes as a complete kit, making it a straightforward choice for single-space temperature control.
Can I get a mini split with concealed ceiling installation?
Yes, the Della 17K BTU Ducted Mini Split fits hidden ceiling spaces. It measures 7.87 inches in height to stay out of sight. The Della 18K BTU Cassette is another option for concealed mounting. Both units provide dual-zone control while maintaining a clean, minimal aesthetic in your room.
Which model is best for commercial drop ceilings?
The Della 27,000 BTU 2-Zone Ceiling Cassette is built for commercial environments. It features a square design measuring 22.5 inches on each side. This unit provides 18,000 BTU per zone for large areas. It includes a line set and is designed to blend into drop ceiling grids.
Do these alternatives support smart app control?
The Della 17K BTU Ducted Mini Split emphasizes smart app control. It allows you to manage your hidden cooling system remotely. Other models focus on raw capacity or balanced zones. If remote management is your priority, the ducted option provides the necessary connectivity for modern home automation.
Which unit is lightest and easiest to mount?
The Della 17K BTU Ducted Mini Split weighs only 33.1 pounds. Its compact dimensions make it easier to handle during installation. The Della 18K BTU Cassette is similarly light at 32 pounds. These lightweight units are simpler to mount in ceilings compared to heavier wall-mounted alternatives.
Is there a budget-friendly dual-zone option?
The Della 28K BTU Dual Zone Mini Split is marked as the best budget choice. It delivers 20 SEER2 efficiency at a lower cost point. It provides equal 18,000 BTU zones for consistent cooling. This model includes a line set, which can reduce additional material costs for your installation project.