Looking Beyond the Della 27? 6 Alternatives Worth a Look
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
You are comparing della 27 alternatives to find the best fit for your space. The Della 27,000 BTU 2-Zone Ceiling Cassette offers 24 SEER2 efficiency and operates at just 37 dB(A). It provides 360° surround airflow and includes a complete installation kit with copper pipes. This unit is ideal for quiet, ceiling-mounted comfort in two separate rooms.
You might look elsewhere if you need different zone capacities, higher efficiency, or a wall-mounted design instead of a cassette. This list includes 6 options chosen because their specs overlap with the original. You will find models with varying BTU splits, such as 12K and 24K zones, or different efficiency ratings like 21 SEER2. Some alternatives offer Wi-Fi smart control or support 230V power. Others are designed for DIY installation or budget-conscious buyers. Each option targets specific needs, from large spaces to small rooms, ensuring you can match the technical requirements to your home.
How these options compare to the Della 27
TOSOT 36K BTU 2-Zone Mini Split
The Tosot 36K BTU 2-Zone Mini Split offers higher total cooling capacity with a 12K and 24K indoor unit split. This configuration suits spaces where one room requires significantly more cooling than the other, unlike the Della’s balanced 18K plus 18K setup. It operates at 21 SEER2, which is lower efficiency than the Della’s 24 SEER2 rating. The outdoor unit is larger and heavier, measuring 40.2 inches in length and weighing 299 pounds. You get flexible zoning capabilities if your rooms have different thermal loads. However, you sacrifice some energy efficiency and compact design. This model is ideal if you need asymmetric cooling power for distinct room sizes.
Della 28K BTU Dual Zone Mini Split
The Della 28K BTU Dual Zone Mini Split provides similar dual-zone functionality with two 18K indoor units, matching the capacity balance of the original ceiling cassette. It operates at 20 SEER2, which is less efficient than the Della 27’s 24 SEER2 rating. This model is a wall-mounted unit rather than a ceiling cassette, changing the installation style and airflow direction. It includes an installation kit and separate controllers for each room, just like the original. The unit is slightly lighter at 27.6 pounds. You trade higher efficiency and discreet ceiling mounting for a potentially more budget-friendly wall-mounted option. This choice works well if you prefer visible indoor units or have ceiling constraints.
TOSOT 36K BTU 2-Zone Mini Split
This Tosot 36K BTU 2-Zone Mini Split shares the same 12K plus 24K asymmetric capacity as the other Tosot model. It also runs at 21 SEER2, offering lower efficiency compared to the Della 27’s 24 SEER2. The physical dimensions are identical to the other Tosot option, with a large outdoor unit. It is designed for large spaces with two distinct climate zones requiring different cooling levels. You give up the high efficiency and quiet ceiling-mounted design of the Della. This alternative is best for buyers who prioritize high capacity and flexible zoning over energy savings and compact aesthetics. It fits homes where one room is significantly larger or hotter than the other.
DELLA 18K BTU 2-Zone Cassette
The Della 18K BTU 2-Zone Cassette is a smaller version of the original, offering two 9K indoor units for a total of 18K BTU. This capacity is significantly lower than the Della 27’s 27K BTU, making it suitable only for smaller spaces. It shares the same ceiling cassette form factor, 22.5-inch width, and 9.63-inch height. The efficiency rating is not specified in the data, so you cannot compare it directly to the 24 SEER2 rating. It lacks the included line set, requiring you to purchase copper pipes separately. This model is ideal if you need quiet, ceiling-mounted comfort for two small rooms. You sacrifice total cooling power for a more compact unit that fits smaller square footage areas.
COSTWAY 36k Dual Zone 23 SEER2
The Costway 36K Dual Zone 23 SEER2 Mini Split offers 23 SEER2 efficiency, which is close to the Della 27’s 24 SEER2 rating. It features a 7K plus 12K indoor unit split, providing asymmetric cooling capacity. This model supports 230V voltage, whereas the Della operates on 208-230V. It includes Wi-Fi smart control, a feature not explicitly listed for the Della. The outdoor unit is larger, measuring 41.2 inches in length. You gain smart connectivity and high efficiency but lose the ceiling cassette design and balanced zone capacity. This option is best for buyers who prioritize energy efficiency and smart features over discreet ceiling mounting and equal cooling distribution in both rooms.
Klimaire 18k DIY 2-Zone 24 SEER2
The Klimaire 18K DIY 2-Zone 24 SEER2 Mini Split matches the Della 27’s 24 SEER2 efficiency rating. It provides two 9K indoor units for a total of 18K BTU, which is lower capacity than the Della’s 27K. This is a DIY-oriented model, unlike the Della which requires professional installation. The indoor units are wall-mounted, not ceiling cassettes. It includes smart features for manual installation control. You trade the high capacity and professional-grade ceiling design for a DIY-friendly, wall-mounted system with lower total cooling power. This choice suits homeowners who want to install the system themselves and prioritize energy efficiency. It is not suitable for large spaces or those requiring ceiling-mounted aesthetics.
Quick picks
Our 7 picks
DELLA 27,000 BTU 2-Zone Ceiling Cassette
Best for: quiet ceiling-mounted comfort
- Cooling Capacity
- 27,000 BTU/h
- Efficiency Rating
- 24 SEER2
- Voltage
- 208-230 V
- Coverage Area
- up to 2000 sq. ft.
- Number of Zones
- 2 Zone
- Heat Pump
- Heat pump
This ceiling cassette mini split delivers 27,000 BTU of cooling across two zones. It features a 24 SEER2 efficiency rating and operates at a quiet 37 dB. The unit covers up to 2,000 sq. ft. and includes a refrigerant leak sensor. You get independent controllers for each room. Professional installation is required for this UL/ETL listed system.
Pros
- 24 SEER2 efficiency rating
- Quiet 37 dB operation
- Refrigerant leak sensor included
- Independent zone controllers
- 360° surround airflow
Cons
- Requires professional installation
- Lower 27,000 BTU capacity than some competitors
- Indoor units are 22.5 inches wide
Good fit if
- You need a sleek ceiling-mounted unit
- You want quiet operation in a living space
- You need independent temperature control for two rooms
Skip if
- You prefer a DIY installation
- You need more than 27,000 BTU total
- You want a standard wall-mounted unit
Verdict: Della 27K 2-Zone Ceiling Cassette fits users who want a quiet, efficient ceiling unit for two separate rooms. It is a strong option for spaces where wall space is limited.
TOSOT 36K BTU 2-Zone Mini Split
Best for: rooms needing different cooling capacities
- 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
This TOSOT dual-zone heat pump pairs a 12,000 BTU indoor unit with a 24,000 BTU unit. It delivers 36,000 BTU total cooling with a 21 SEER2 efficiency rating. The system includes smart app control and voice assistant compatibility. It operates reliably in extreme temperatures from -22°F to 118°F. You should choose this model if you need independent temperature control for rooms of different sizes.
Pros
- Dual-zone design with 12K and 24K indoor units
- 21 SEER2 efficiency rating for energy savings
- Wide operating range from -22°F to 118°F
- Smart app and voice control support
Cons
- Lower 21 SEER2 rating compared to 24 SEER2 competitors
- Requires professional HVAC installation
- Heavier 299-pound outdoor unit
Good fit if
- You need different cooling capacities for different rooms
- You want smart app and voice control
- You live in an area with extreme temperatures
Skip if
- You prefer a higher 24 SEER2 efficiency rating
- You want to install the unit yourself
- You need a lighter outdoor unit
Verdict: TOSOT 36k BTU 2-Zone Mini Split fits homes needing flexible zone capacities and smart features, though you may prefer higher efficiency models if that is your priority.
Della 28K BTU Dual Zone Mini Split
Best for: Two-room setups needing quiet 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
This 28,000 BTU dual-zone system pairs two 18,000 BTU indoor units with a single outdoor condenser. It offers 20 SEER2 efficiency and covers up to 2,000 square feet. The unit includes two 16-foot installation kits and operates quietly at 32 dBa. You get independent control for each room via separate controllers. It uses R454B refrigerant and includes smart features like 4D airflow and eco modes. Professional installation is required.
Pros
- 20 SEER2 efficiency rating for power savings
- Quiet operation at 32 dBa
- Includes two 16ft line sets and kits
- Separate controllers for each zone
- R454B eco-friendly refrigerant
Cons
- Lower 20 SEER2 efficiency than top competitors
- No self-cleaning function despite display option
- Requires professional installation and line vacuuming
Good fit if
- You need independent climate control for two rooms
- You want quiet operation at 32 dBa
- You prefer included 16ft installation kits
Skip if
- You need higher than 20 SEER2 efficiency
- You want self-cleaning functionality
- You plan to install it yourself
Verdict: DELLA 28K BTU Dual Zone Mini Split suits buyers who prioritize quiet operation and included installation kits over peak efficiency. It is a practical option for two-room setups where separate controllers are essential.
TOSOT 36K BTU 2-Zone Mini Split
Best for: large spaces with two distinct climate zones
- 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
This TOSOT Cosmo series unit delivers 36,000 BTU of cooling across two zones with a 21 SEER2 efficiency rating. It pairs a 12,000 BTU indoor unit with a 24,000 BTU indoor unit, allowing you to set different temperatures for each room. The system operates in extreme weather from -22°F to 118°F and includes smart control via the Gree+ app. It is designed for spaces requiring flexible, high-capacity climate management.
Pros
- 36,000 BTU total cooling capacity for large areas
- 21 SEER2 energy efficiency rating reduces operating costs
- Operates in ambient temperatures from -22°F to 118°F
- Smart control via Gree+ app with voice support
Cons
- Includes a 16.4-foot copper pipe set but not the power cord
- Shipped in multiple packages or pallets requiring full assembly
- Dual zone configuration limits independent control to two spaces
Good fit if
- You need to cool two rooms with different size requirements
- You live in an area with extreme hot or cold temperatures
- You want smart app control for remote management
Skip if
- You require a single-zone unit for one small room
- You need a pre-assembled unit that plugs in directly
- You prefer a system with a higher SEER2 rating
Verdict: TOSOT 36k BTU 2 Zone Mini Split is a robust solution for homeowners needing high capacity and flexible zoning. It fits buyers who prioritize efficiency and smart features over plug-and-play simplicity.
DELLA 18K BTU 2-Zone Cassette
Best for: two-zone ceiling installations
- Cooling Capacity
- 18,000 BTU/h
- Efficiency Rating
- 24 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 800 sq ft
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
This unit delivers 18,000 BTU of cooling across two zones, each covering up to 400 square feet. It achieves a high 24 SEER2 efficiency rating, which reduces energy use. The indoor units mount to the ceiling with 360-degree airflow. It operates quietly at 32 dB(A). You get independent control for each room via separate controllers. The system includes a refrigerant leak sensor and supports the DELLA app for remote management.
Pros
- 24 SEER2 efficiency rating for strong performance
- Quiet operation at 32 dB(A)
- 360-degree surround airflow for even distribution
- Independent zone control for each room
- Smart connectivity via DELLA app and voice assistants
Cons
- Lower total cooling capacity than larger alternatives on this list
- Requires professional installation and cannot be DIY installed
- Indoor units are larger and bulkier than wall-mounted models
Good fit if
- You need independent temperature control for two separate rooms
- You want a ceiling-mounted unit for a clean look
- You prioritize high energy efficiency and quiet operation
Skip if
- You need cooling capacity above 18,000 BTU total
- You want a wall-mounted unit instead of a cassette
- You prefer a DIY installation process
Verdict: DELLA 18K BTU 2-Zone Ceiling Cassette suits you if you need efficient, quiet cooling for two specific zones and can accommodate ceiling-mounted units. It is not ideal for larger spaces or those requiring higher total BTU output.
COSTWAY 36k Dual Zone 23 SEER2
Best for: high-efficiency dual-zone cooling with smart control
- Cooling Capacity
- 36000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Control
- Wi-Fi
This dual-zone mini split delivers 36,000 BTU of cooling with a 23 SEER2 efficiency rating. It splits capacity into 7,000 and 12,000 BTU indoor units. The system includes Wi-Fi control and a 24-hour timer. It operates on 208-230V power. You get six operating modes and five fan speeds. The unit uses R32 refrigerant for lower environmental impact.
Pros
- 23 SEER2 energy efficiency rating
- Wi-Fi smart control capability
- 36,000 BTU total cooling capacity
- R32 refrigerant with low GWP
- 24-hour programmable timer
Cons
- Uneven zone split limits flexibility
- Requires professional HVAC installation
- Specific 208-230V voltage requirement
Good fit if
- You need high efficiency in a dual-zone setup
- You have 208-230V electrical infrastructure
- You want smart control via Wi-Fi
Skip if
- You require equal capacity for both zones
- You only have standard 115V outlets
- You prefer a single-zone configuration
Verdict: COSTWAY 36k 2-Zone 23 SEER2 Mini Split suits buyers who prioritize energy efficiency and smart features over balanced room capacities. It is ideal for spaces with specific voltage requirements.
Klimaire 18k DIY 2-Zone 24 SEER2
Best for: DIY installation in two small rooms
- Cooling Capacity
- 18000 BTU
- Efficiency Rating
- 24 SEER2
- Coverage Area
- Up to 350 sq ft per unit
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
This DIY mini split offers 18,000 BTU total cooling across two 9,000 BTU zones. It achieves up to 24 SEER2 efficiency with an inverter compressor. The system includes smart WiFi control for Alexa and Google Assistant. It handles cooling up to 131°F and heating down to -13°F. The pre-charged lines simplify installation for homeowners without HVAC experience.
Pros
- 24 SEER2 efficiency rating for lower energy use
- Smart WiFi control with voice assistant compatibility
- Factory pre-charged lines for easier DIY setup
- Heating operation down to -13°F
Cons
- Smaller 18,000 BTU capacity compared to 27,000 or 36,000 BTU alternatives
- Requires manual installation without professional HVAC services
- No remote control mentioned in specifications
Good fit if
- You need precise temperature control for two small rooms
- You prefer DIY installation to save on labor costs
- You want smart home integration for remote scheduling
Skip if
- You require high cooling capacity for large open spaces
- You want a professional installation included
- You need a unit with more than two zones
Verdict: Klimaire 18K 2-Zone 24 SEER2 Mini Split is a practical option for homeowners seeking efficient cooling for two small rooms. Its DIY design and smart features suit those who value energy savings and manual installation control.
Specifications side by side
| Spec | DELLA 27,000 BTU 2-Zone Ceiling Cassette | TOSOT 36K BTU 2-Zone Mini Split | Della 28K BTU Dual Zone Mini Split | TOSOT 36K BTU 2-Zone Mini Split | DELLA 18K BTU 2-Zone Cassette | COSTWAY 36k Dual Zone 23 SEER2 | Klimaire 18k DIY 2-Zone 24 SEER2 |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 27,000 BTU/h | 36,000 BTU | 28,000 BTU | 36,000 BTU | 18,000 BTU/h | 36000 BTU | 18000 BTU |
| Efficiency Rating | 24 SEER2 | 21 SEER2 | 20 SEER2 | 21 SEER2 | 24 SEER2 | 23 SEER2 | 24 SEER2 |
| Voltage | 208-230 V | 230V | 208-230V | 230V | 208-230V | 208-230V | not specified |
| Coverage Area | up to 2000 sq. ft. | not specified | Up to 2,000 sq ft | not specified | Up to 800 sq ft | not specified | Up to 350 sq ft per unit |
| Number of Zones | 2 Zone | 2 Zone | Dual Zone | 2 Zone | 2 Zone | 2 Zone | 2 Zone |
| Heat Pump | Heat pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | not specified | WiFi, Gree+ app, Alexa, Google Home | Wi-Fi, Alexa | WiFi, Gree+ app, voice control | Wi-Fi, Alexa, App | not specified | Wi-Fi, Alexa, Google Assistant |
| Mounting Type | not specified | not specified | Wall Mount | not specified | not specified | not specified | Wall Mount |
| Smart Control | not specified | Wi-Fi | Wi-Fi, Alexa | Wi-Fi | Wi-Fi, Alexa | Wi-Fi | not specified |
| Dimensions | 22.5 × 22.5 × 9.63 inches | 40.2 × 16.8 × 32.5 inches | 8.69 × 39.8 × 12.4 inches | 40.2 × 16.8 × 32.5 inches | 22.5 × 22.5 × 9.63 inches | 17.9 × 41.2 × 31.8 inches | 14.9 × 36.5 × 27.5 inches |
| Weight | 32 pounds | 299 pounds | 27.6 pounds | not specified | 32 pounds | not specified | 92.6 pounds |
| Size | 2 Zone 27000 BTU 18+18 | 36,000 BTU(2) 12+24 | 2 Zone 28000 BTU 18+18 | 36,000 BTU(Dual)12+24 | 2 Zone 18000 BTU 9+9 | Dual Zone 7000 BTU+12000 BTU | 9,000 BTU + 9,000 BTU |
| Color | White with Line set | White | White with Line set | White | White without Line set | White | White |
| Model | 1D3-CC+D1818 | TST-MZ-C36-D1224 | 1D3-TL+D1818 | 811820027012 | 1D2-CC+D99-X | B0F91K6LDN | KMIP218 + 2xKIWP09H2 |
If you need a different panel type or refresh rate, you can compare samsung 27 alternatives with similar display specifications.
Frequently asked questions
Which alternative offers the highest efficiency rating?
The Klimaire 18K DIY 2-Zone Mini Split leads with a 24 SEER2 rating. This model pairs two 9,000 BTU indoor units for balanced cooling in smaller spaces. The Tosot and Costway options follow closely at 21 and 23 SEER2 respectively. Higher SEER2 values indicate better energy efficiency, which reduces long-term electricity usage.
Can I find a dual-zone system with unequal room capacities?
Yes, the Tosot 36K BTU 2-Zone Mini Split features a 12,000 BTU and a 24,000 BTU indoor unit. This 12+24 split allows you to cool a large living area while maintaining a smaller bedroom. The Costway 36k model also offers unequal zones with 7,000 BTU and 12,000 BTU outputs for flexible zoning.
Are there ceiling cassette options similar to the Della 27?
The Della 27,000 BTU 2-Zone Ceiling Cassette and the Della 18K BTU 2-Zone Cassette both use ceiling-mounted designs. The 18K model provides two 9,000 BTU zones, while the 27K unit offers two 18,000 BTU zones. Both measure 22.5 inches wide and 9.63 inches high, fitting standard ceiling grids.
Which system requires a 230V electrical connection?
The Costway 36k Dual Zone 23 SEER2 Mini Split is designed for 230V power. This voltage requirement suits homes with dedicated circuits for high-efficiency units. Most other listed models, including the Della and Tosot options, typically operate on standard 115V connections, though you should verify your specific electrical setup before installation.
Do any alternatives include smart Wi-Fi control?
The Costway 36k Dual Zone 23 SEER2 Mini Split explicitly lists Wi-Fi smart control as a feature. This allows you to manage temperature settings remotely via a mobile app. While other models like the Tosot mention smart features, the Costway data confirms direct Wi-Fi connectivity for remote monitoring and adjustments.
Which unit is best for DIY installation projects?
The Klimaire 18K DIY 2-Zone 24 SEER2 Mini Split is marketed for DIY installation. It includes two KIWP09H2 indoor units and a KMIP218 outdoor unit. This configuration suits homeowners who prefer manual installation control and want to avoid professional labor costs. The included components are designed for easier self-setup.
What is the total cooling capacity of the largest system?
The Tosot 36K BTU 2-Zone Mini Split and the Costway 36k Dual Zone 23 SEER2 both offer 36,000 BTU of total cooling capacity. The Tosot splits this as 12K and 24K, while the Costway uses 7K and 12K zones. These high-capacity units are ideal for large open spaces or multiple rooms requiring significant cooling power.