DAIKIN 24 Alternatives: 6 Similar Picks Compared

How these alternatives compare

Rellytech 18k BTU 21 SEER2 Mini Split

The Rellytech 18,000 BTU unit targets single-zone applications rather than the Daikin’s three-zone setup. It delivers 21 SEER2 efficiency on 230V power, matching the Daikin’s efficiency rating. You get Wi-Fi smart control, similar to the Daikin’s built-in connectivity. However, you lose the ability to manage multiple rooms independently. The Rellytech is lighter and more compact. It suits users who need strong cold-weather heating in one medium room. If you do not require multi-zone distribution, this single-unit option simplifies installation and reduces complexity while maintaining high energy performance.

COSTWAY 9000 BTU Mini Split 21 SEER2

The COSTWAY 9,000 BTU model is a compact single-zone solution for small spaces. It operates on 230V power and offers 21 SEER2 efficiency with Wi-Fi connectivity. Unlike the Daikin, which powers three indoor units, this unit serves only one room. It is significantly lighter and smaller. You gain a lower profile and easier installation for tight spaces. The trade-off is the lack of multi-zone flexibility and lower total cooling capacity. This pick works best for small rooms where 9,000 BTU is sufficient. It prioritizes quiet operation and smart features over the raw power and zone distribution of the Daikin system.

TOSOT 33,600 BTU 21 SEER2 Mini Split

The TOSOT 33,600 BTU unit provides substantially higher cooling capacity than the Daikin’s 24,000 BTU output. It is a single-zone system with 21 SEER2 efficiency and Wi-Fi control. You gain the ability to cool large rooms that the Daikin might struggle to handle efficiently. However, you give up the multi-zone flexibility and independent control of three separate areas. The TOSOT is heavier and larger. It fits buyers who prioritize high BTU output and smart connectivity. If you need to condition a single large space rather than multiple smaller zones, this high-capacity option offers more raw power and efficiency.

Della Vario 24K BTU 21 SEER2

The Della Vario 24,000 BTU unit matches the Daikin’s cooling capacity and 21 SEER2 efficiency. It is a single-zone system with Wi-Fi and Alexa support. You gain a remote sensor for enhanced comfort control, which the Daikin does not list. However, you lose the multi-zone capability and independent room management. The Della is lighter and more compact. It suits large rooms where smart control and quiet operation are priorities. Installation requires a professional, similar to the Daikin. If you need 24,000 BTU for one area and value remote sensing, this alternative offers comparable efficiency without the complexity of a multi-zone setup.

COSTWAY 12,000 BTU 21 SEER2 Mini Split

The COSTWAY 12,000 BTU model is a single-zone heat pump with 21 SEER2 efficiency. It operates on 208-230V power, matching the Daikin’s voltage range. You gain a compact, lightweight unit suitable for medium rooms. However, you sacrifice the multi-zone distribution and the ability to control three separate areas independently. The COSTWAY is much smaller and easier to install in tight spaces. It fits buyers who need efficient cooling and heating for one room. If you do not require the Daikin’s three-zone flexibility, this single-unit option provides solid efficiency and practical capacity for smaller spaces.

YITAHOME 18,000 BTU 21 SEER2 Mini Split

The YITAHOME 18,000 BTU unit is a single-zone system with 21 SEER2 efficiency and Wi-Fi control. It operates on 230V power. You gain smart voice control and a compact design suitable for medium rooms. However, you lose the multi-zone capability and the higher total cooling capacity of the Daikin. The YITAHOME is lighter and more affordable in terms of complexity. It suits users who prioritize efficiency and smart features over raw power. If 18,000 BTU is sufficient for your single room, this alternative offers strong performance without the need for multiple indoor units or complex zone management.

Quick picks

Our 7 picks

1 Best overall

Daikin 24k BTU 3-Zone 21 SEER2

Best for: multi-zone homes needing independent control

Cooling Capacity

24,000 BTU

Efficiency Rating

21 SEER2

Voltage

208-230V

Number of Zones

3-Zone

Heat Pump

Heat Pump

Smart Connectivity

Wi-Fi, Daikin One Home app, Alexa

View on Amazon: Daikin 24k BTU 3-Zone 21 SEER2

This Daikin 24,000 BTU system powers three indoor units with 9,000, 12,000, and 12,000 BTU capacities. It delivers 21 SEER2 efficiency and includes built-in Wi-Fi for app control. The outdoor condenser supports cooling down to 14°F and heating down to 5°F. You get a 12-year manufacturer warranty and AHRI certification. It suits multi-room homes needing independent zone control.

Pros

• 21 SEER2 efficiency rating for lower energy use
• Controls three zones with 9k, 12k, and 12k BTU units
• Built-in Wi-Fi works with Alexa and Google Home
• 12-year manufacturer warranty included
• Heating operation down to 5°F

Cons

• Heating limit stops at 59.9°F outdoor temperature
• Cooling minimum capacity is 12,600 BTU
• Requires 208-230V power supply

Good fit if

• You need to control three separate rooms independently
• You want a 12-year warranty for long-term peace of mind
• You have 208-230V electrical service available

Skip if

• You only need to cool or heat a single small room
• Your outdoor heating temperatures regularly drop below 5°F
• Your electrical system only supports 120V outlets

Verdict: Daikin 3-Zone Mini Split 24k BTU is the right pick for homeowners who need precise, independent climate control across three distinct areas with high efficiency and a strong warranty.

2 Also great

Rellytech 18k BTU 21 SEER2 Mini Split

Best for: Medium rooms with 230V power and smart needs

Cooling Capacity

18000 BTU

Efficiency Rating

21 SEER2

Voltage

208V/230V

Coverage Area

up to 1250sq.ft

Heat Pump

Heat Pump

Smart Control

Wi-Fi

View on Amazon: Rellytech 18k BTU 21 SEER2 Mini Split

The Rellytech 18,000 BTU mini split delivers 21 SEER2 efficiency on 230V power. It covers up to 750 square feet using R454B refrigerant. Wi-Fi and voice control allow remote management. The unit operates between -13°F and 122°F. It includes a digital remote and multiple modes. This model suits medium-sized rooms needing reliable heating and cooling.

Pros

• 21 SEER2 efficiency rating
• Wi-Fi and voice control
• Operates down to -13°F
• Includes digital remote
• Uses R454B refrigerant

Cons

• 18,000 BTU capacity is lower than the 24,000 BTU Daikin alternative
• Ships in two separate boxes
• Requires licensed HVAC technician for installation

Good fit if

• You need Wi-Fi control for an 18,000 BTU unit
• You have a 230V circuit for installation
• You require heating performance in cold climates

Skip if

• You need 24,000 BTU for a larger space
• You prefer a single-box shipment
• You require a 115V plug-in model

Verdict: Rellytech 18,000 BTU 21 SEER2 Mini Split is a solid mid-capacity choice for users who want smart features and strong cold-weather heating. It fits homes with existing 230V wiring who do not need the highest output.

3 Best budget

COSTWAY 9000 BTU Mini Split 21 SEER2

Best for: small rooms with 230V power

Cooling Capacity

9000 BTU

Efficiency Rating

21 SEER2

Voltage

208/230V

Coverage Area

Up to 450 Sq. Ft

Heat Pump

Heat Pump

Smart Connectivity

WiFi, Alexa, Google Assistant, App

View on Amazon: COSTWAY 9000 BTU Mini Split 21 SEER2

This COSTWAY 9000 BTU mini split provides cooling and heating for spaces up to 450 square feet. It features a 21 SEER2 efficiency rating and operates on 208/230V power. The unit includes Wi-Fi connectivity for app control and works with Alexa and Google Assistant. It offers seven operation modes and eight fan speeds for precise comfort adjustments.

Pros

• High 21 SEER2 energy efficiency rating
• Wi-Fi connectivity with app control
• Compatible with Alexa and Google Assistant
• Operates reliably in temperatures from -4°F to 127°F
• Quiet operation down to 28 dB

Cons

• Lower 9000 BTU capacity compared to other picks
• Requires 208/230V hardwired installation
• Smaller coverage area for large rooms

Good fit if

• You need a budget-friendly unit for a small room
• You have 230V electrical outlets available
• You want smart home integration via app

Skip if

• You need to cool a large open space
• You only have standard 115V outlets
• You prefer a higher BTU capacity

Verdict: COSTWAY 9000 BTU Mini Split is a compact, efficient option for small rooms with 230V power. It suits buyers who prioritize smart controls and quiet operation over raw cooling power.

4 Best premium

TOSOT 33,600 BTU 21 SEER2 Mini Split

Best for: large rooms requiring high BTU output

Cooling Capacity

33,600 BTU

Efficiency Rating

21 SEER2

Voltage

208-230V

Heat Pump

Heating System

Smart Connectivity

Wi-Fi, GREE+ app, voice control

Dimensions

39.4 × 29.4 × 16.8 inches

View on Amazon: TOSOT 33,600 BTU 21 SEER2 Mini Split

This TOSOT unit delivers 33,600 BTU of cooling and heating power with a 21 SEER2 efficiency rating. It operates on 230V power and includes Wi-Fi connectivity for app control via GREE+. The system features a quiet 22dB low-speed operation and comes with a 16 ft line set. It suits larger spaces needing robust climate control with smart scheduling capabilities.

Pros

• 33,600 BTU cooling and heating capacity
• 21 SEER2 energy efficiency rating
• Wi-Fi enabled with GREE+ app support
• Quiet operation down to 22dB
• Includes 16 ft copper line set

Cons

• High weight of 181 pounds
• Large dimensions at 39.4 inches wide
• Requires professional installation for vacuuming

Good fit if

• You need high capacity for large rooms
• You want smart app control for scheduling
• You prefer quiet operation for bedrooms

Skip if

• You have limited space for a large unit
• You need a 115V plug-in model
• You want a lighter, easier DIY install

Verdict: TOSOT 33,600 BTU 21 SEER2 Mini Split is a heavy-duty option for large spaces. It fits buyers who prioritize high BTU output and smart connectivity over compact size.

5 Best alexa

Della Vario 24K BTU 21 SEER2

Best for: large rooms needing smart control

Cooling Capacity

24,000 BTU/h (2 Ton)

Efficiency Rating

21 SEER2

Voltage

208–230V

Coverage Area

up to 1500 Sq. Ft

Heat Pump

Heat pump

Smart Connectivity

Wifi, Alexa

View on Amazon: Della Vario 24K BTU 21 SEER2

This Della Vario mini split delivers 24,000 BTU of cooling for spaces up to 1,500 square feet. It operates at 21 SEER2 efficiency on 230V power. The unit includes Wi-Fi and Alexa compatibility for remote control. A smart sensor in the remote adjusts airflow based on your location. It runs quietly at 36 dBA and functions in temperatures down to -4°F. Professional installation is required for this system.

Pros

• 24,000 BTU cooling capacity for large rooms
• 21 SEER2 energy efficiency rating
• Wi-Fi and Alexa smart connectivity
• Remote smart sensor for personalized comfort
• Quiet operation at 36 dBA

Cons

• Requires professional installation, not DIY friendly
• Refrigerant adjustment needed for lines over 25 ft
• Maximum fuse size limited to 25A

Good fit if

• You need 24,000 BTU cooling for a large area
• You want smart control via Wi-Fi and Alexa
• You need heating performance down to -4°F

Skip if

• You prefer a DIY installation process
• Your electrical circuit requires more than 25A
• You need cooling for spaces larger than 1,500 sq ft

Verdict: Della Vario 24K BTU 21 SEER2 suits large rooms where smart control and quiet operation matter. Its remote sensor adds comfort, but you must hire a pro for installation.

6 Also great

COSTWAY 12,000 BTU 21 SEER2 Mini Split

Best for: medium rooms needing 12k BTU efficiency

Cooling Capacity

12,000 BTU

Efficiency Rating

21 SEER2

Voltage

208-230V

Coverage Area

Up to 750 sq ft

Heat Pump

Heat Pump

Dimensions

8 × 30 × 11.5 inches

View on Amazon: COSTWAY 12,000 BTU 21 SEER2 Mini Split

This COSTWAY mini split delivers 12,000 BTU of cooling and 12,300 BTU of heating for spaces up to 750 square feet. It features a 21 SEER2 efficiency rating and 208-230V voltage. The unit includes a 4D airflow design with 353 CFM. It uses R32 refrigerant and offers a 5-year parts warranty. This model suits you if you need a mid-capacity unit with high efficiency for a single zone.

Pros

• 21 SEER2 energy efficiency rating
• 12,000 BTU cooling and 12,300 BTU heating capacity
• R32 eco-friendly refrigerant
• Built-in self-cleaning function at 135°F

Cons

• 12,000 BTU capacity is lower than most alternatives on this list
• No smart Wi-Fi or app control listed
• 17.5 lbs indoor unit weight is modest but not ultra-compact

Good fit if

• You need a 12,000 BTU unit for a medium room
• You prefer 208-230V electrical connections
• You want high SEER2 efficiency in a single-zone system

Skip if

• You require more than 12,000 BTU for your space
• You need smart home integration or app control
• You are looking for a multi-zone system

Verdict: COSTWAY 12K BTU 21 SEER2 Heat Pump offers solid efficiency and capacity for medium rooms, making it a practical pick for single-zone cooling and heating needs.

7 Also great

YITAHOME 18,000 BTU 21 SEER2 Mini Split

Best for: single-zone medium rooms needing smart control

Cooling Capacity

18000 BTU (1.5 Ton)

Efficiency Rating

21 SEER2

Voltage

208-230V

Coverage Area

Up to 1250 Sq. Ft

Heat Pump

Heat Pump

Smart Connectivity

WiFi, Alexa

View on Amazon: YITAHOME 18,000 BTU 21 SEER2 Mini Split

The YITAHOME 18,000 BTU mini split delivers 21 SEER2 efficiency for spaces up to 1,250 square feet. It operates on 208-230V power and includes heat pump functionality. You get WiFi control and Alexa compatibility. The unit runs below 49 decibels and handles temperatures from 5°F to 118°F. It is a solid option for single-zone cooling and heating needs.

Pros

• 21 SEER2 efficiency rating
• WiFi and Alexa connectivity
• Operates below 49 decibels
• Heat pump capability

Cons

• 18,000 BTU capacity is lower than 24,000 BTU competitors
• No dedicated mobile app mentioned in data
• No smart home hub integration listed beyond Alexa

Good fit if

• You need a single-zone unit for medium rooms
• You want high energy efficiency with 21 SEER2
• You prefer WiFi control via Alexa

Skip if

• You require 24,000 BTU or higher cooling power
• You need a multi-zone system
• You want a dedicated smartphone app

Verdict: YITAHOME 18k BTU 21 SEER2 Mini Split is a practical pick for users who prioritize efficiency and smart voice control over raw cooling power. It fits well in spaces where 18,000 BTU is sufficient.

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