Della 20K BTU Dual Zone Mini Split Alternatives: 6 Similar Picks Compared

Comparing Key Alternatives to Della

Della Vario 36k BTU 19 SEER2

The Della Vario 36K BTU Single Zone unit shifts your focus from multi-room flexibility to raw cooling power in one large area. It offers 36,000 BTU of capacity, significantly more than the Della dual-zone’s 20,000 BTU total. While it maintains the same 19 SEER2 efficiency rating, you lose the ability to control two separate spaces independently. This model includes Alexa smart control, which the original Della does not list. It is designed for open-plan living areas or large single rooms where high capacity matters more than zone separation. If you only need to cool one big space, this single-zone option provides superior performance without the complexity of dual indoor units.

ROVSUN 38000 BTU Dual Zone Mini Split

The ROVSUN 38K BTU Dual Zone Mini Split delivers higher total capacity and efficiency than the Della 20K model. It features a 20 SEER2 rating, which is one point higher than the Della’s 19 SEER2. The outdoor unit is substantially larger and heavier at 222 pounds compared to the Della’s 19.8 pounds, indicating a more robust compressor for larger spaces. This unit is better suited for large rooms or open areas that require significant cooling power. You gain better energy efficiency and higher capacity, but you sacrifice the compact footprint and included 16ft installation kits found with the Della. It is a premium choice for users who prioritize power and efficiency over easy installation.

DELLA 18K BTU Dual Zone Mini Split

The Della 18K BTU Dual Zone Mini Split offers higher energy efficiency than the original 20K model. It achieves a 22 SEER2 rating, which is three points higher than the Della 20K’s 19 SEER2. However, it provides less total cooling capacity, with a combined 18,000 BTU compared to the 20,000 BTU of the original. This makes it suitable for smaller spaces or users who prioritize energy savings over maximum cooling power. The indoor units are configured as 7K and 12K BTU, differing from the 9K and 18K setup of the original. If you want top-tier efficiency for two-zone cooling and have smaller rooms, this budget-friendly option delivers better performance per watt than the higher-capacity 20K model.

TOSOT 30k BTU 2-Zone Mini Split

The TOSOT 30K BTU 2-Zone Mini Split stands out with the highest efficiency rating on this list at 21 SEER2. It also provides 30,000 BTU of total capacity, which is 50% more than the Della 20K unit. This model is ideal for buyers who value extreme weather resilience and smart connectivity. The outdoor unit is much larger and heavier, weighing 263 pounds compared to the Della’s 19.8 pounds. You get significantly more cooling power and better efficiency, but the system requires more space and likely higher electrical capacity. If you need peak efficiency and high capacity for larger zones, the TOSOT is a superior technical choice, though it lacks the included installation kits found with the Della.

YITAHOME 54000 BTU 3-Zone Mini Split

The YITAHOME 54K BTU 3-Zone Mini Split expands your cooling options from two rooms to three. It offers 54,000 BTU of total capacity, far exceeding the Della 20K’s 20,000 BTU. While it shares the same 19 SEER2 efficiency rating, it provides Wi-Fi smart control, which the original Della does not list. This unit is designed for users who need to cool three separate spaces simultaneously. The outdoor unit is significantly larger and heavier at 289 pounds. You gain extensive coverage and smart connectivity, but you lose the simplicity and compact size of the dual-zone Della system. It is best for large homes or multi-room setups where high capacity and three-zone control are essential.

Senville Dual Zone 28000 BTU Mini Split

The Senville Dual Zone 28000 BTU Mini Split offers higher total capacity than the Della 20K unit. It provides 28,000 BTU of cooling power, which is 40% more than the Della’s 20,000 BTU. This model is designed for larger rooms or light commercial spaces. It supports 208–230V power, similar to the Della. However, it does not list an efficiency rating or included installation kits in the provided data. The outdoor unit is larger and heavier than the Della’s compact 19.8-pound unit. You get more cooling power for bigger zones, but you may need to purchase installation hardware separately. It is a solid choice for users who need serious cooling capacity for large areas without the need for extreme efficiency ratings.

Quick picks

Our 7 picks

1 Best overall

Della 20K BTU Dual Zone Mini Split

Best for: Two rooms with different cooling needs

Cooling Capacity

20000 BTU/h

Efficiency Rating

19 SEER2

Voltage

208-230V

Coverage Area

up to 1400 Sq. Ft

Number of Zones

2 Zone

Heat Pump

heat pump

View on Amazon: Della 20K BTU Dual Zone Mini Split Affiliate link

This dual-zone system pairs a 9,000 BTU and 18,000 BTU indoor unit with a 20,000 BTU outdoor condenser. It offers 19 SEER2 efficiency and R454B refrigerant for lower environmental impact. You get coverage for up to 1,400 square feet with included 16ft installation kits. The unit operates at 49 dBa and includes a 24-hour timer. It is designed for spaces where zones do not run at full capacity simultaneously.

Pros

• 19 SEER2 energy efficiency rating
• Dual-zone configuration with 9K and 18K indoor units
• Includes two 16ft copper line sets and installation kits
• Operates in heating mode down to -13°F
• Uses environmentally friendly R454B refrigerant

Cons

• Self-cleaning function is listed but does not perform the operation
• Total indoor capacity (27K BTU) exceeds outdoor output (20K BTU)
• Requires professional installation and line-set vacuuming

Good fit if

• You need to cool two rooms of different sizes
• You want included 16ft line sets for easier setup
• You prefer R454B refrigerant for better environmental impact

Skip if

• You expect the self-cleaning button to actually clean the unit
• You need to run both zones at full power simultaneously
• You prefer a DIY installation without professional help

Verdict: Della 20K BTU Dual Zone Mini Split suits homeowners who need flexible cooling for two distinct rooms and want included installation hardware. It is a practical option for moderate simultaneous use but may struggle if both zones demand maximum capacity at once.

2 Also great

Della Vario 36k BTU 19 SEER2

Best for: large single rooms needing high capacity

Cooling Capacity

36,000 BTU

Efficiency Rating

19 SEER2

Voltage

208-230V

Coverage Area

Up to 2500 sq ft

Heat Pump

Heat Pump

Smart Connectivity

Alexa, Wi-Fi

View on Amazon: Della Vario 36k BTU 19 SEER2 Affiliate link

This 36,000 BTU unit handles up to 2,500 square feet with 19 SEER2 efficiency. It runs on 230V and includes a heat pump down to -4°F. You get 4D airflow and an "I Feel" remote sensor for precise comfort. It connects to Alexa for voice control. This model is a single-zone system, not a dual-zone setup like many alternatives on this list.

Pros

• 36,000 BTU capacity for large spaces
• 19 SEER2 energy efficiency rating
• Alexa smart control integration
• "I Feel" remote temperature sensing
• Heat pump operation down to -4°F

Cons

• Single-zone configuration limits multi-room use
• Requires 230V electrical connection
• Heavier indoor unit at 39.7 pounds

Good fit if

• You need cooling for a single large room
• You have a 230V outlet available
• You want Alexa voice control

Skip if

• You need to cool two separate rooms independently
• You only have a 115V outlet
• You prefer a lighter indoor unit

Verdict: Della Vario 36K BTU Single Zone is a high-capacity option for open-plan living areas or large single rooms. It suits buyers who prioritize raw cooling power and smart features over multi-zone flexibility.

3 Also great

ROVSUN 38000 BTU Dual Zone Mini Split

Best for: Large rooms needing high capacity

Cooling Capacity

38000 BTU (24K/24K)

Efficiency Rating

20 SEER2

Voltage

208-230V

Number of Zones

2 Zone

Heat Pump

Heat Pump

Mounting Type

Wall Mount

View on Amazon: ROVSUN 38000 BTU Dual Zone Mini Split Affiliate link

This ROVSUN dual zone mini split delivers 38,000 BTU of cooling across two 24,000 BTU rooms. It features a 20 SEER2 efficiency rating and a heat pump that operates in temperatures as low as -4°F. The system includes two indoor units, two remote controllers, and 25-foot line sets. You get individual climate control for each space with a 24-hour timer and four-way swing. It is built for homes or commercial spaces needing robust, energy-efficient cooling and heating.

Pros

• High 20 SEER2 efficiency rating
• 38,000 BTU total cooling capacity
• Operates in temperatures down to -4°F
• Includes two remote controllers

Cons

• Heavy outdoor unit at 222 pounds
• No smart app control mentioned
• Requires professional installation

Good fit if

• You need high capacity for two large rooms
• You want energy-efficient cooling and heating
• You prefer individual room temperature control

Skip if

• You need smart app control
• You have limited wall space for a large unit
• You are looking for a DIY-friendly setup

Verdict: ROVSUN 38K BTU Dual Zone Mini Split is a high-capacity choice for large rooms or open spaces. It suits buyers who prioritize raw cooling power and energy efficiency over smart features.

4 Best budget

DELLA 18K BTU Dual Zone Mini Split

Best for: Two-zone cooling with high efficiency

Cooling Capacity

18000 BTU/h

Efficiency Rating

22 SEER2

Voltage

230V

Coverage Area

up to 850 Sq.Ft

Number of Zones

2 Zone

Heat Pump

Heat Pump

View on Amazon: DELLA 18K BTU Dual Zone Mini Split Affiliate link

This dual-zone unit pairs a 7,000 BTU and 12,000 BTU indoor head for a total of 18,000 BTU cooling. It offers a 22 SEER2 efficiency rating and runs on 230V power. The system includes Wi-Fi app control and voice assistant compatibility. You get a 16.4ft installation kit with copper pipes. It is designed for spaces up to 850 square feet and includes a remote control.

Pros

• 22 SEER2 efficiency rating for strong energy savings
• Dual-zone design with 7K and 12K BTU heads
• Wi-Fi app and voice control integration
• Includes 16.4ft installation kit with copper pipes

Cons

• Self-cleaning function is listed but does not operate
• Requires professional installation and line-set vacuuming
• Lower total cooling capacity than 20K or 28K alternatives

Good fit if

• You need precise temperature control for two separate rooms
• You want high efficiency with a 22 SEER2 rating
• You prefer smart app control and voice commands

Skip if

• You require a self-cleaning function that actually works
• You need more than 18,000 BTU of total cooling
• You are looking for a DIY-friendly installation

Verdict: DELLA 18K BTU 2 Zone Mini Split delivers top-tier efficiency for two-zone setups. It suits buyers who prioritize smart features and energy savings over raw cooling power.

5 Best 21 seer2

TOSOT 30k BTU 2-Zone Mini Split

Best for: buyers prioritizing peak efficiency and smart control

Cooling Capacity

30,000 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 30k BTU 2-Zone Mini Split Affiliate link

This TOSOT Cosmo unit offers 30,000 BTU cooling across two zones with a 12K and 18K indoor head. It holds a 21 SEER2 rating, the highest on this list, and operates from -22°F to 118°F. You get Gree+ app control and voice commands. It includes a 16.4-foot line set but no power cord. It suits you if you want top-tier efficiency and smart features for a medium-sized dual-room setup.

Pros

• 21 SEER2 efficiency rating
• Gree+ app and voice control
• Operates in -22°F to 118°F
• Includes 16.4-foot copper pipe set

Cons

• 263-pound outdoor unit is heavy
• Power cord not included
• No remote control mentioned in data

Good fit if

• You prioritize the highest SEER2 rating in this group
• You want smart app and voice control
• You need reliable operation in extreme heat or cold

Skip if

• You need a lighter outdoor unit for easy mounting
• You want a complete installation kit with a power cord
• You prefer a lower total BTU capacity

Verdict: TOSOT 30K BTU Dual Zone 21 SEER2 is the most efficient option here, ideal for buyers who value smart connectivity and extreme weather resilience over a lighter build.

6 Also great

YITAHOME 54000 BTU 3-Zone Mini Split

Best for: cooling three rooms with high capacity

Cooling Capacity

54000 BTU

Efficiency Rating

19 SEER2

Voltage

230V

Number of Zones

Multi Zone

Smart Connectivity

WiFi

Smart Control

Wi-Fi

View on Amazon: YITAHOME 54000 BTU 3-Zone Mini Split Affiliate link

This YITAHOME system covers three rooms with a total of 54,000 BTU cooling capacity. It features 19 SEER2 efficiency and built-in Wi-Fi for mobile control. You get three indoor air handlers and one outdoor condenser. The unit operates in modes like cooling, heating, and dehumidification. It runs on R-32 refrigerant and includes a remote control with a 14.7-foot communication wire.

Pros

• Three-zone capability with 54,000 BTU total cooling
• 19 SEER2 energy efficiency rating
• Wi-Fi connectivity for mobile intelligent control
• Quiet operation down to 25 decibels in sleep mode

Cons

• Heavier build at 289 pounds
• Larger outdoor unit dimensions
• Higher total capacity than dual-zone alternatives

Good fit if

• You need to cool three separate rooms simultaneously
• You want Wi-Fi control without a separate hub
• You require high cooling capacity for larger spaces

Skip if

• You only need to condition two rooms
• You prefer a lighter, more compact outdoor unit
• You are looking for a lower BTU total capacity

Verdict: YITAHOME 54K BTU 3-Zone Mini Split is a high-capacity solution for three-room cooling needs. It fits buyers who need more power than dual-zone units provide and value smart connectivity.

7 Best premium

Senville Dual Zone 28000 BTU Mini Split

Best for: large rooms needing 28k BTU dual zone cooling

Cooling Capacity

28000 BTU

Voltage

208-230V

Number of Zones

Dual Zone

Heat Pump

Heat Pump

Smart Connectivity

Alexa, App control

Mounting Type

Wall Mount

View on Amazon: Senville Dual Zone 28000 BTU Mini Split Affiliate link

The Senville SEN-30HF/D is a 28,000 BTU dual zone heat pump designed for larger spaces. It operates on 208–230V power and includes smart connectivity for mobile apps and voice assistants. This Energy Star certified unit provides independent climate control for two rooms. It suits residential or light commercial areas like offices and retail spaces. You get reliable heating and cooling with ETL and AHRI certification for peace of mind.

Pros

• 28,000 BTU cooling capacity for larger areas
• Dual zone independent temperature control
• Smart app and voice assistant compatibility
• Energy Star certified heat pump performance

Cons

• No 16ft refrigerant line kit included in data
• Requires 208–230V power, not standard 115V
• Larger indoor unit dimensions than 9K/18K models

Good fit if

• You need 28,000 BTU for a large open space
• You have 208–230V electrical infrastructure available
• You want smart app control for remote management

Skip if

• You only have standard 115V outlets
• You need a pre-bundled installation kit
• You are cooling a small single room

Verdict: Senville 28000 BTU Dual Zone Mini Split handles larger zones with high capacity and smart features. It fits users with 208–230V power who need serious cooling for big rooms or light commercial spaces.

Specifications side by side

Frequently asked questions

See also

• best refrigerators with dual zone
• best air fryers with dual zone