6 Best Alternatives to the Della Optima Series 23000 BTU Mini Split (2026)
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The della optima series 23000 btu mini split alternatives list helps you find units that match the original's core specifications. The Della Optima delivers 23 SEER2 efficiency and 23,000 BTU cooling for spaces up to 1,500 square feet. It operates on 230V and includes smart control via Wi-Fi and Alexa. The unit also features soft airflow technology and heating capability down to -13°F. These specs make it a strong choice for single large rooms needing reliable cold-weather performance.
You might want something else if you need different zoning, a different capacity, or a distinct brand. For example, some buyers prefer tri-zone systems for multiple rooms or dual-zone setups for two spaces. Others may need a smaller 18,000 BTU unit for rooms under 1,000 square feet. The alternatives in this list were chosen because their specs overlap with the original. Each option shares key attributes like 230V voltage, high SEER2 ratings, and smart connectivity. This ensures you can compare features directly and find the right fit for your specific space and comfort needs.
Our top pick: DELLA Optima 23K BTU Soft Airflow.
Comparing key spec differences
YITAHOME Tri-Zone 24K BTU Mini Split
The YITAHOME Tri-Zone model splits 24,000 BTU across three separate rooms. This allows independent climate control for each space, unlike the Della Optima which serves a single large area. It shares the same 23 SEER2 efficiency and 230V voltage. You gain flexibility for multi-room homes but lose the focused cold-weather heating capability down to -13 degrees Fahrenheit found in the Optima series. Choose this if you need to manage temperatures in three distinct zones rather than one large open plan.
YITAHOME 24K BTU 3 Zone Mini Split
This YITAHOME unit also offers tri-zone cooling with 24,000 BTU total capacity. It matches the Della Optima’s 23 SEER2 efficiency rating and 230V power requirement. The key difference is the multi-zone distribution. You can set different temperatures for each of the three connected indoor units. The Optima focuses on soft airflow in one large room. Pick this YITAHOME model if your priority is independent temperature management across multiple separate rooms rather than uniform cooling in a single large space.
YITAHOME 24K BTU 3-Zone 23 SEER2
Another YITAHOME tri-zone option, this model provides 24,000 BTU split across three zones. It maintains the 23 SEER2 efficiency and 230V electrical requirement seen in the Della Optima. The main advantage is the ability to control three separate areas independently. The Optima is designed for a single large room with soft airflow. This alternative is better suited for homes where different rooms require different temperatures. You trade the single-unit comfort features for multi-room zoning capability.
Della 35000 BTU 17 SEER2 Mini Split
The Della 35,000 BTU model offers significantly higher cooling capacity for larger spaces. It operates on 230V but has a lower 17 SEER2 efficiency rating compared to the Optima’s 23 SEER2. This unit is physically larger and heavier. You gain raw power for big areas but sacrifice energy efficiency and the specific soft airflow design of the Optima. Select this if you need to cool a very large volume and efficiency is secondary to maximum cooling output.
COSTWAY 28K Dual Zone 23 SEER2
The COSTWAY Dual Zone unit splits 28,000 BTU between two separate rooms. It matches the Della Optima’s 23 SEER2 efficiency and uses 230V power. This model allows you to control two distinct spaces independently. The Optima serves one large area with uniform cooling. Choose this dual-zone alternative if you need to manage temperatures in two separate rooms. You give up the single-unit soft airflow feature for the ability to customize comfort in two different zones.
DELLA CloudAir 18k BTU 23.5 SEER2
The Della CloudAir 18K model targets smaller spaces up to 1,000 square feet. It offers 18,000 BTU cooling with a slightly higher 23.5 SEER2 efficiency rating. It runs on 230V and includes smart control. This unit is smaller and less powerful than the 23,000 BTU Optima. It is ideal for bedrooms or smaller offices where the Optima would be oversized. Pick this if you need efficient cooling for a smaller room and do not require the larger capacity of the Optima series.
Quick picks
Our 7 picks
DELLA Optima 23K BTU Soft Airflow
Best for: Single large rooms needing cold-weather heating
- Cooling Capacity
- 23,000 BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 1500 sq.ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, Della+ app
View on Amazon: DELLA Optima 23K BTU Soft Airflow Affiliate link
The DELLA Optima Series delivers 23,000 BTU of cooling and 1.92 tons of heating for spaces up to 1,500 square feet. It operates on 230V power with a 23 SEER2 efficiency rating. The unit features soft airflow technology to prevent direct drafts and includes Wi-Fi control via the Della+ app and Alexa. It functions in temperatures down to -13°F, making it suitable for colder climates.
Pros
- 23 SEER2 energy efficiency rating
- Soft airflow design prevents direct drafts
- Smart control via Della+ app and Alexa
- Operates in cold weather down to -13°F
- Whisper-quiet 34dB operation in Mute Mode
Cons
- Heavier at 30.9 pounds compared to lighter units
- Requires a 25A electrical fuse for installation
- Limited to single-zone coverage
Good fit if
- You need cooling for a room up to 1,500 square feet
- You want smart control through Alexa or the Della+ app
- You require heating performance in temperatures down to -13°F
Skip if
- You need a multi-zone system for multiple rooms
- Your electrical panel only supports 115V circuits
- You prefer a lighter indoor unit under 30 pounds
Verdict: DELLA Optima 23K BTU Mini Split offers strong efficiency and smart features for single-room comfort. It suits buyers needing reliable cold-weather heating and draft-free cooling in spaces up to 1,500 square feet.
YITAHOME Tri-Zone 24K BTU Mini Split
Best for: cooling three small separate rooms
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1200 sq ft
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa
View on Amazon: YITAHOME Tri-Zone 24K BTU Mini Split Affiliate link
This YITAHOME system splits 24,000 BTU across three 9,000 BTU indoor heads. It reaches 23 SEER2 efficiency and includes Wi-Fi with Alexa support. The unit covers 1,200 square feet and operates below 40 decibels. It handles heating down to 5°F and cooling up to 118°F. You get a multifunctional remote and washable filters. Professional installation is required for this pre-charged system.
Pros
- 23 SEER2 efficiency rating
- Three 9,000 BTU zones
- Wi-Fi and Alexa connectivity
- Operation below 40 decibels
Cons
- Requires professional installation
- Ships in seven separate packages
- Single 9,000 BTU per zone limits flexibility
Good fit if
- You need to cool three small rooms
- You want high efficiency in a multi-zone setup
- You prefer voice control via Alexa
Skip if
- You need to cool one large open space
- You want to install the unit yourself
- You require different capacities for each zone
Verdict: YITAHOME Tri-Zone 24K BTU Mini Split delivers precise, efficient cooling for three separate rooms. It suits homeowners who need flexible zoning and smart features without the complexity of larger commercial systems.
YITAHOME 24K BTU 3 Zone Mini Split
Best for: multi-room climate control
- Cooling Capacity
- 24K BTU
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Coverage Area
- 1350 sq ft
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
View on Amazon: YITAHOME 24K BTU 3 Zone Mini Split Affiliate link
This YITAHOME unit is a 24,000 BTU tri-zone mini split with 23 SEER2 efficiency. It covers 1,350 square feet and includes three indoor heads: two 9,000 BTU and one 12,000 BTU. It operates on 230V power and features Wi-Fi and Alexa compatibility. The system provides heating down to 5°F and cooling up to 118°F. It is designed for multi-room comfort with quiet operation below 42 decibels.
Pros
- 23 SEER2 energy efficiency rating
- Tri-zone design with 9K, 9K, and 12K BTU heads
- Wi-Fi and Alexa smart control
- Heating operation down to 5°F
Cons
- Requires professional installation
- Ships in seven separate packages
- Indoor unit is 31 inches wide
Good fit if
- You need to cool three separate rooms
- You want high efficiency with 23 SEER2
- You use Alexa for smart home control
Skip if
- You prefer a single-zone system
- You need a compact 230V unit under 25 inches wide
- You want a DIY-friendly single-box shipment
Verdict: YITAHOME 24K BTU Tri-Zone Mini Split suits you if you need independent temperature control for three rooms. It delivers strong efficiency and smart features for multi-space comfort.
YITAHOME 24K BTU 3-Zone 23 SEER2
Best for: multi-room temperature management
- Efficiency Rating
- 23 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1,200 sq ft
- Number of Zones
- 3 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa
View on Amazon: YITAHOME 24K BTU 3-Zone 23 SEER2 Affiliate link
This YITAHOME system delivers 24,000 BTU of cooling across three separate zones, covering up to 1,200 square feet. It operates at 23 SEER2 efficiency on 230V power. The unit includes a heat pump for heating down to 5°F. You get smart control via Wi-Fi and Alexa compatibility. The indoor heads are compact, measuring 31 inches wide. Professional installation is required for this pre-charged system.
Pros
- 23 SEER2 efficiency rating for energy savings
- Three independent zones for targeted climate control
- Wi-Fi and Alexa smart connectivity
- Heat pump operates in temperatures down to 5°F
- Quiet operation with noise levels below 40 decibels
Cons
- Requires professional installation and is not user-serviceable
- Ships in seven separate packages
- No mention of built-in display on indoor units
Good fit if
- You need to control temperature in three different rooms
- You want smart home integration with Alexa
- You have a 230V electrical circuit available
Skip if
- You prefer a single-zone system for one room
- You want a DIY-friendly installation without a pro
- You need cooling for areas larger than 1,200 square feet
Verdict: YITAHOME 24K BTU 3-Zone Mini Split is a strong option for multi-room climate control with high efficiency. It suits users who need independent zone management and smart home features.
Della 35000 BTU 17 SEER2 Mini Split
Best for: Large spaces needing strong heat pump performance
- Cooling Capacity
- 35,000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 2,500 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa
View on Amazon: Della 35000 BTU 17 SEER2 Mini Split Affiliate link
The Della Econo Series 35000 BTU mini split offers 17 SEER2 efficiency for spaces up to 2500 square feet. It operates on 230V power and includes a heat pump that functions down to 5°F. You get 4D airflow and remote-based temperature sensing. This unit suits large rooms needing robust cooling and heating without complex smart home integration.
Pros
- 35,000 BTU cooling capacity for large areas
- 17 SEER2 energy efficiency rating
- Heat pump works in temperatures as low as 5°F
- Remote control senses room temperature for precise comfort
- Quiet operation with noise levels as low as 39 dBa
Cons
- Lower 17 SEER2 efficiency compared to 23 SEER2 competitors
- No dedicated mobile app for control
- Mandates professional installation
Good fit if
- You need cooling for a large space up to 2500 square feet
- You require heating performance in cold climates down to 5°F
- You prefer 230V electrical connections
Skip if
- You want the highest energy efficiency available
- You need app-based smartphone control
- You are installing in a small room under 1500 square feet
Verdict: Della Econo 35k BTU 17 SEER2 is a high-capacity unit for large spaces, but you should skip it if you prioritize top-tier efficiency or app control over raw cooling power.
COSTWAY 28K Dual Zone 23 SEER2
Best for: cooling two separate rooms independently
- Cooling Capacity
- 28000 BTU
- Efficiency Rating
- 20 SEER2
- Voltage
- 208/230V
- Number of Zones
- 2 Zone
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Google Assistant
View on Amazon: COSTWAY 28K Dual Zone 23 SEER2 Affiliate link
This dual-zone mini split offers 28,000 BTU of cooling capacity by pairing two 18,000 BTU indoor units. It achieves a 23 SEER2 efficiency rating, which helps manage energy use across larger spaces. The system includes Wi-Fi connectivity for smart control via Alexa or Google Assistant. You get independent temperature management for two separate rooms, along with a 4D swing function for even air distribution. The outdoor unit features electrical heating for reliable operation in cold weather.
Pros
- 23 SEER2 efficiency rating for energy savings
- Dual-zone design with 18,000 BTU per indoor unit
- Wi-Fi enabled with Alexa and Google Assistant support
- Operates in extreme heat up to 127°F
- Quiet operation with noise levels as low as 28 dB
Cons
- Lower 20 SEER2 rating in key specs compared to 23 SEER2 in attributes
- Requires professional licensed HVAC technician installation
- No mention of physical display on indoor units
Good fit if
- You need to cool two separate rooms independently
- You want smart home integration with voice assistants
- You live in an area with extreme summer heat
Skip if
- You require a single-zone unit for one room
- You prefer a DIY installation without a licensed technician
- You need a unit with a higher SEER2 rating than 23
Verdict: COSTWAY 28K Dual Zone 23 SEER2 Mini Split is a practical choice for homeowners who need flexible cooling for two distinct spaces. It fits buyers who value smart control and reliable performance in high temperatures.
DELLA CloudAir 18k BTU 23.5 SEER2
Best for: small rooms up to 1,000 sq. ft.
- Cooling Capacity
- 18,000 BTU (1.5 Ton)
- Efficiency Rating
- 23.5 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 1,000 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa, Della+ app
View on Amazon: DELLA CloudAir 18k BTU 23.5 SEER2 Affiliate link
This Della CloudAir unit offers 18,000 BTU of cooling and heating for spaces up to 1,000 square feet. It achieves a high 23.5 SEER2 rating and includes a 230V connection. The system features soft airflow to reduce direct drafts and operates quietly at 34dB in mute mode. You can control it via the Della+ app or Alexa. It also provides reliable heating down to -22°F using hyper heat technology.
Pros
- 23.5 SEER2 energy efficiency rating
- Soft airflow design prevents direct drafts
- Operates at whisper-quiet 34dB in mute mode
- Smart control via WiFi and Alexa
- Heating capability down to -22°F
Cons
- 18,000 BTU capacity is lower than the 23,000-24,000 BTU units on this list
- Requires a 30A fuse for installation
- Coverage area limited to 1,000 square feet
Good fit if
- You need a quiet unit for a bedroom or nursery
- You want smart control through the Della+ app or Alexa
- You live in a cold climate needing heating down to -22°F
Skip if
- You need to cool a space larger than 1,000 square feet
- You require a higher capacity than 18,000 BTU
- You do not have a 230V electrical circuit available
Verdict: DELLA CloudAir 18K BTU 23.5 SEER2 is a quiet, efficient option for smaller rooms or bedrooms where soft airflow and smart control matter more than raw cooling power.
Specifications side by side
| Spec | DELLA Optima 23K BTU Soft Airflow | YITAHOME Tri-Zone 24K BTU Mini Split | YITAHOME 24K BTU 3 Zone Mini Split | YITAHOME 24K BTU 3-Zone 23 SEER2 | Della 35000 BTU 17 SEER2 Mini Split | COSTWAY 28K Dual Zone 23 SEER2 | DELLA CloudAir 18k BTU 23.5 SEER2 |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 23,000 BTU | not stated | 24K BTU | not stated | 35,000 BTU | 28000 BTU | 18,000 BTU (1.5 Ton) |
| Efficiency Rating | 23 SEER2 | 23 SEER2 | 23 SEER2 | 23 SEER2 | 17 SEER2 | 20 SEER2 | 23.5 SEER2 |
| Voltage | 230V | 208-230V | 208-230V | 208-230V | 208-230V | 208/230V | 230V |
| Coverage Area | Up to 1500 sq.ft | Up to 1200 sq ft | 1350 sq ft | Up to 1,200 sq ft | Up to 2,500 sq ft | not stated | Up to 1,000 sq ft |
| Number of Zones | not stated | 3 Zone | 3 Zone | 3 Zone | not stated | 2 Zone | not stated |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat Pump |
| Smart Connectivity | WiFi, Alexa, Della+ app | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa, Google Assistant | Wi-Fi, Alexa, Della+ app |
| Smart Control | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi, Alexa | Wi-Fi | Wi-Fi, Alexa |
| Dimensions | 8.75 × 43.2 × 13.1 inches | 7.8 × 31 × 11.5 inches | 7.8 × 31 × 11.5 inches | 7.8 × 31 × 11.5 inches | 10.1 × 46.9 × 14.1 inches | 7.48 × 31.9 × 12.1 inches | 8.74 × 43.2 × 13.1 inches |
| Weight | 30.9 pounds | 17.6 pounds | 19.8 pounds | 17.6 pounds | 38.6 pounds | not stated | 30.9 pounds |
| Size | CloudAir - 23,000 BTU - 230V - 23 SEER2 | not stated | not stated | not stated | 35,000 BTU 230V - 17 SEER2 | Dual Zone 18000 BTU+18000 BTU | CloudAir - 18,000 BTU - 230V - 23.5 SEER2 |
| Color | White | White | White | White | White | White | White |
| Model | TPX-23K2V-23S-I+O | MAYIHPduhj | MAYIHLJpqD | MAYIHmSF6K | IF-35K2VR-17S-I+O | BLAST PRO SERIES 28K | TPHX-18K2V-23S-I+O |
If you need external controls for your system, you can compare mysa smart thermostat mini split heat alternatives.
Frequently asked questions
Which alternative offers the highest efficiency rating?
The Della CloudAir 18K BTU model leads with a 23.5 SEER2 rating. This exceeds the 23 SEER2 found in the Della Optima and most YITAHOME units. Higher SEER2 values indicate better energy conversion. You save power by running this unit for the same cooling output. It is ideal for smaller spaces up to 1,000 square feet where efficiency matters most.
Can I control my mini split using voice assistants?
Yes, most listed units support Wi-Fi and Alexa integration. The Della Optima, all YITAHOME models, the Della 35K BTU, and the Della 18K BTU all include these smart controls. You can adjust temperatures or modes hands-free. The COSTWAY Dual Zone unit supports Wi-Fi control but does not list Alexa compatibility. Check your specific model's app requirements for setup.
Which unit is best for cooling three separate rooms?
The YITAHOME Tri-Zone 24K BTU Mini Split is designed for this task. It splits its 24,000 BTU capacity across three independent zones. This allows you to set different temperatures for each room. The unit maintains 23 SEER2 efficiency while providing flexible zoning. It is a practical alternative if you need multi-room comfort instead of single-zone cooling.
How large is the indoor air handler for the top pick?
The Della Optima 23K BTU indoor unit measures 43.2 inches wide, 13.1 inches high, and 8.75 inches deep. It weighs 30.9 pounds. These dimensions help you plan wall mounting space. Compare this to the YITAHOME models, which are narrower at 31 inches wide but slightly shorter in height. Measure your wall area before installation to ensure a proper fit.
Is there a high-capacity option for very large spaces?
The Della 35,000 BTU 17 SEER2 model offers the highest cooling power on this list. It is suitable for large spaces that require strong heat pump performance. Note that its efficiency rating is lower at 17 SEER2 compared to the 23 SEER2 standard of the Optima. Choose this unit if raw capacity is your priority over maximum energy efficiency.
Which dual-zone unit is recommended for two rooms?
The COSTWAY 28K Dual Zone Mini Split is the only dual-zone option listed. It combines two 18,000 BTU zones for a total of 28,000 BTU. It operates on 230V and achieves 23 SEER2 efficiency. This setup lets you cool two distinct rooms independently. It is a solid choice if you need flexible zoning without the complexity of a tri-zone system.