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You need reliable cooling and heating without high energy bills. These are the best 20 SEER2 mini split air conditioners for your home. We compared 13 models using only the specifications published on the listings. Our top pick is the Rellytech 12000 BTU 20 SEER2 Mini Split. It leads because it offers 20 SEER2 efficiency on a standard 115V circuit, fitting single rooms easily. This guide helps you decide which unit matches your voltage, space size, and control needs.
Match voltage and coverage area first
Your choice depends on two specs: circuit voltage and room size. Units like the Rellytech 12000 BTU fit standard 115V outlets for spaces up to 750 square feet. Larger rooms need 208-230V power, as seen in the COSTWAY Blast Pro 18000 BTU. Check your outlet type before buying. This determines if the unit can even connect to your home wiring.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Rellytech 12000 BTU 20 SEER2 Mini Split Best overall | single rooms on 115V circuits | |
| 2 | COSTWAY 12000 BTU 115V Mini Split Best budget | Standard 115V circuits up to 750 sq ft | |
| 3 | YITAHOME 12000 BTU 115V Mini Split Best cover | 115V rooms up to 750 square feet | |
| 4 | COSTWAY Blast Pro 18000 BTU 230V Also great | large rooms with 208-230V power | |
| 5 | Temprium 18,000 BTU Mini Split AC Also great | large rooms with 230V power access | |
| 6 | Della Vario 9000 BTU Mini Split Also great | small rooms needing quiet, smart climate control | |
| 7 | Pioneer Diamante Pro 9000 BTU Best premium | small rooms with 230V power access | |
| 8 | ROVSUN 9000 BTU 20 SEER2 Mini Split Also great | small rooms needing 115V smart control | |
| 9 | DELLA Vita 12K BTU 115V Mini Split Also great | Small rooms with standard 115V outlets | |
| 10 | ROVSUN 12000 BTU 230V Mini Split Best remote | single rooms with 230V power | |
| 11 | Upstreman 12000 BTU 230V Silver Mini Split Best silver | 230V spaces needing silver aesthetics | |
| 12 | COSTWAY 28K Tri 3 Zone Mini Split Also great | multi-zone cooling and heating in larger homes | |
| 13 | DREO 12000 BTU 115V Mini Split Best auto swing | 115V spaces needing 4-way swing |
The best fit for you
- You need efficient cooling for a single room – Rellytech 12000 BTU 20 SEER2 Mini Split – It offers 20 SEER2 efficiency and fits 750 sq ft spaces on standard 115V circuits.
- You want the most compact model on the list – YITAHOME 12000 BTU 115V Mini Split – It weighs just 22 pounds and measures 7.9 inches deep, making it the lightest unit.
- You need quiet operation for a bedroom – Pioneer Diamante Pro 9000 BTU – This model features quiet operation and is designed for small rooms with 230V power access.
- You require multi-zone cooling for larger homes – COSTWAY 28K Tri 3 Zone Mini Split – It provides a tri-zone configuration with 9k, 9k, and 18k BTU units for independent control.
Rellytech 12000 BTU 20 SEER2 Mini Split
Best for: single rooms on 115V circuits
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12000 BTU
- Coverage Area
- Up to 750 sq ft
- SEER2 Rating
- 20
- Voltage
- 110V/115V
- Smart Compatibility
- Wi-Fi, voice control, remote
This Rellytech mini split delivers 12,000 BTU of cooling and heating for spaces up to 750 square feet. It operates on a standard 115V circuit and achieves a 20 SEER2 rating, which is 30% more efficient than 17 SEER2 models. The unit features R454B refrigerant and works in temperatures from -13°F to 122°F. You get Wi-Fi app control, a digital remote, and multiple operating modes for year-round comfort.
- 20 SEER2 energy efficiency rating
- 115V standard voltage compatibility
- Wi-Fi and app control included
- R454B refrigerant for better air quality
- Operates from -13°F to 122°F
- 12,000 BTU capacity is lower than the 18,000 BTU and 28,000 BTU options on this list
- 750 square foot coverage is smaller than larger units in the guide
- 8-year warranty is shorter than the 10-year standard often seen in this category
- You need a 115V unit for a standard outlet
- You want high efficiency with a 20 SEER2 rating
- You need smart control via Wi-Fi app
- You require more than 12,000 BTU for a large room
- You need a 230V connection for higher power
- You want a multi-zone system for multiple rooms
Verdict: Rellytech 12000 BTU 115V Mini Split fits users who need efficient cooling for a single room on a standard 115V circuit. It is a solid choice for bedrooms or small living areas where smart features and energy savings matter most.
COSTWAY 12000 BTU 115V Mini Split
Best for: Standard 115V circuits up to 750 sq ft
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12000 BTU
- Coverage Area
- up to 750 Sq. Ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 115V
- Smart Compatibility
- remote control
This 12000 BTU mini split air conditioner offers 20 SEER2 efficiency on a standard 115V circuit. It cools and heats spaces up to 750 square feet using inverter technology. The unit includes five working modes, four fan speeds, and a remote control with a timer. It is designed for wall mounting and features self-cleaning and auto-defrost functions for low maintenance.
- 20 SEER2 energy efficiency rating
- 115V standard voltage operation
- Cools up to 750 square feet
- Five working modes and four fan speeds
- Includes remote control with 0.5-24 hour timer
- Lower cooling capacity than 18000 BTU options on this list
- Heavier indoor unit at 68 pounds compared to lighter models
- Larger physical footprint with a 44.5-inch width
- You need a 12000 BTU unit for a room up to 750 square feet
- You have a standard 115V electrical circuit available
- You want a heat pump with five operating modes
- You require more than 12000 BTU of cooling power
- You prefer a more compact indoor unit under 40 inches wide
- You need a unit with smart Wi-Fi app control
Verdict: COSTWAY 12000 BTU Mini Split AC provides reliable 20 SEER2 cooling on a 115V circuit for spaces up to 750 square feet, making it a practical choice for standard residential rooms.
YITAHOME 12000 BTU 115V Mini Split
Best for: 115V rooms up to 750 square feet
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12,000 BTU
- Coverage Area
- 750 sq ft
- SEER2 Rating
- 20
- Voltage
- 115V
- Smart Compatibility
- Alexa, Wi-Fi, remote
This YITAHOME mini split delivers 12,000 BTU of cooling and heating with a 20 SEER2 rating. It runs on 115V power and covers up to 750 square feet. The unit features inverter technology for energy efficiency and quiet operation under 41 dB. You get five modes, four fan speeds, and smart control via Wi-Fi and Alexa. The indoor unit is white and weighs 22 pounds. It is a solid choice for medium-sized rooms.
- 20 SEER2 energy efficiency rating
- Covers up to 750 square feet
- Quiet operation under 41 dB
- Wi-Fi and Alexa compatibility
- Five operating modes with four fan speeds
- 115V voltage requires a standard outlet, unlike 208-230V models
- 22-pound indoor unit weight is heavier than some competitors
- 750 square foot coverage is lower than 18,000 BTU options
- You need a 115V unit for standard outlets
- You want quiet operation under 41 dB
- You need smart control via Alexa
- You require 208-230V high-voltage power
- You need to cool spaces larger than 750 square feet
- You prefer a lighter indoor unit
Verdict: YITAHOME 12000 BTU 20 SEER2 Mini Split suits those who need 115V power and quiet, smart cooling for rooms up to 750 square feet.
COSTWAY Blast Pro 18000 BTU 230V
Best for: large rooms with 208-230V power
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 18000 BTU
- Coverage Area
- Up to 1250 sq ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 208/230V
- Smart Compatibility
- Alexa, Google Assistant, Wi-Fi, remote
This 18,000 BTU mini split covers up to 1,250 square feet with 20 SEER2 efficiency. It runs on 208-230V power and includes Wi-Fi control with Alexa compatibility. The unit features 4D airflow, seven operating modes, and eight fan speeds. It operates quietly at 28 dB and includes self-cleaning and a 24-hour timer. This model suits larger rooms needing strong heating and cooling performance.
- 18,000 BTU capacity for 1,250 sq. ft. spaces
- 20 SEER2 energy efficiency rating
- Wi-Fi and Alexa voice control
- Operates at 28 dB noise level
- 4D airflow design with seven modes
- Requires 208-230V voltage connection
- Heavier at 20.9 pounds compared to 9,000 BTU models
- Indoor unit width is 35.8 inches
- You need to cool or heat a large room up to 1,250 square feet
- You have a 208-230V electrical outlet available
- You want Wi-Fi control and Alexa compatibility
- You only have a standard 115V outlet
- You need a unit for a small room under 900 square feet
- You prefer a more compact indoor unit width
Verdict: COSTWAY 18000 BTU 20 SEER2 Mini Split fits homes with 208-230V power that need high capacity for large spaces. It delivers strong performance for rooms up to 1,250 square feet with smart control options.
Temprium 18,000 BTU Mini Split AC
Best for: large rooms with 230V power access
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 18000 BTU
- Coverage Area
- Up to 1250 sq ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 230V
- Operating Modes
- Auto, Cool, Heat, Dry, Fan, Sleep, ECO
The Temprium 18000 BTU unit delivers 20 SEER2 efficiency on a 230V circuit. It covers 1,250 square feet with cooling and heating capabilities. The indoor unit operates at 28 dB and includes WiFi control. This model suits larger rooms or open spaces where higher capacity is necessary. It offers reliable year-round comfort for areas up to 1250 sq. ft.
- 20 SEER2 energy efficiency rating
- 18,000 BTU cooling and heating capacity
- 230V electrical connection
- 28 dB quiet operation level
- WiFi app and voice control support
- Requires 230V power instead of standard 115V outlets
- Heavier build at 40.8 pounds compared to lighter 9000 BTU units
- Larger physical dimensions than 9000 BTU models
- You need 18,000 BTU capacity for larger spaces
- You have a 230V circuit available for installation
- You want a high-efficiency 20 SEER2 system
- You only have standard 115V outlets available
- You need a unit for a small room under 9000 BTU
- You prefer a lighter and more compact indoor unit
Verdict: Temprium 18000 BTU 230V Mini Split fits homes with 230V circuits needing high capacity for large rooms. It provides efficient cooling and heating for spaces up to 1,250 square feet.
Della Vario 9000 BTU Mini Split
Best for: small rooms needing quiet, smart climate control
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 9000 BTU
- Coverage Area
- Up to 400 Sq. Ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- Alexa, Wi-Fi app, remote control
This 9,000 BTU mini split offers 20 SEER2 efficiency on a 230V circuit. It covers up to 400 square feet with heating down to -4°F. The unit includes WiFi and Alexa compatibility for remote control. It operates quietly at 29 dBa and features 4D airflow. This model suits small rooms where precise temperature control and smart connectivity are priorities.
- 20 SEER2 energy efficiency rating
- WiFi and Alexa smart home compatibility
- Ultra-quiet operation at 29 dBa
- Heating capability down to -4°F
- Lower 9,000 BTU capacity compared to most 12,000 or 18,000 BTU options on this list
- Requires professional installation and line-set vacuuming
- Heating limit of -4°F is lower than competitors supporting -20°F
- You need a compact unit for a small room under 400 sq ft
- You want voice control via Alexa
- You prioritize quiet operation at 29 dBa
- You require heating in sub-zero temperatures below -4°F
- You need a higher capacity for larger spaces
- You prefer a 115V plug-in unit without professional installation
Verdict: DELLA Vario 9000 BTU Mini Split fits users seeking a quiet, smart-enabled solution for small spaces. It delivers reliable 20 SEER2 efficiency for rooms up to 400 square feet.
Pioneer Diamante Pro 9000 BTU
Best for: small rooms with 230V power access
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 9,000 BTU
- Coverage Area
- 250 to 350 sq ft
- SEER2 Rating
- 20
- Voltage
- 230V
- Number of Zones
- Single zone
The Pioneer Diamante Pro 9000 BTU mini split is a 230V heat pump rated at 20 SEER2. It cools 9,000 BTU and heats 10,000 BTU with R-454B refrigerant. The system covers 250 to 350 square feet and operates in temperatures as low as -4°F. You get dual-axis airflow and I FEEL sensing for precise comfort. This unit is designed for single-zone cooling and heating with a complete installation kit included.
- 20 SEER2 efficiency rating for energy savings
- 230V power connection for robust performance
- Dual-axis motorized louvers for wide airflow
- I FEEL remote sensing for personalized temperature
- Includes 16 ft installation kit
- 9,000 BTU capacity is lower than many 12,000 or 18,000 BTU competitors on this list
- Requires a separately sold module for app control instead of built-in Wi-Fi
- 230V voltage limits compatibility with standard 115V household outlets
- You need a high-efficiency 20 SEER2 unit for a small 250-350 sq ft room
- You have a 230V electrical circuit available for the installation
- You want a complete system package with a 16 ft kit included
- You require built-in Wi-Fi without purchasing an extra module
- Your space exceeds 350 square feet and needs higher BTU capacity
- You only have standard 115V outlets and cannot install 230V wiring
Verdict: Pioneer Diamante Pro 9000 BTU 230V is a solid choice for small rooms where you can install 230V power and want certified cold-climate heating performance. It suits buyers who prefer a complete kit and precise remote sensing over built-in smart features.
ROVSUN 9000 BTU 20 SEER2 Mini Split
Best for: small rooms needing 115V smart control
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 9000 BTU
- Coverage Area
- up to 400 sq.ft.
- SEER2 Rating
- 20 SEER2
- Voltage
- 115V
- Smart Compatibility
- app, Alexa, Google Assistant, remote
This ROVSUN unit offers 9000 BTU cooling and heating for spaces up to 400 square feet. It operates on 115V power and carries a 20 SEER2 rating for energy efficiency. The inverter compressor adjusts speed to save energy, and the system runs as quietly as 28dB in mute mode. You can control it via remote, Wi-Fi app, or voice assistants like Alexa and Google Assistant.
- 20 SEER2 energy efficiency rating
- 115V standard voltage operation
- Wi-Fi and voice control support
- 28dB ultra-quiet mute mode
- Inverter technology for energy savings
- 9000 BTU capacity is lower than the 12000 BTU and 18000 BTU models on this list
- 70-pound weight is heavier than typical 9000 BTU units
- You need a 115V unit for standard outlets
- You want smart home integration with Alexa or Google
- You are cooling a small room under 400 square feet
- You require more than 9000 BTU for a larger space
- You need a 208V or 230V hardwired connection
- You prefer a lighter indoor unit
Verdict: ROVSUN 9000 BTU Mini Split fits users who need smart control and 115V compatibility for small rooms, though its lower BTU output suits only limited square footage.
DELLA Vita 12K BTU 115V Mini Split
Best for: Small rooms with standard 115V outlets
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12,000 BTU
- Coverage Area
- 550 sq ft
- SEER2 Rating
- 20
- Voltage
- 115V
- Smart Compatibility
- Alexa, Google Assistant, DELLA App
The DELLA Vita Series 12000 BTU mini split offers 20 SEER2 efficiency on a standard 115V circuit. It cools spaces up to 550 sq. ft. and heats down to -4℉. Operating at 28 dB, it runs quietly for bedrooms or offices. Smart features include Alexa control and an I Feel sensor for precise temperature reading. This unit provides reliable comfort with inverter technology for stable indoor temperatures.
- 20 SEER2 energy efficiency rating
- Ultra-quiet operation at 28 dB
- Heats effectively down to -4℉
- Includes I Feel remote sensor
- Works with Alexa and Google Assistant
- Limited to 115V electrical circuits
- Cools only up to 550 sq. ft.
- Heavier at 18.7 pounds
- You need a 115V plug-in unit
- You want quiet operation under 30 dB
- You have a room under 550 sq. ft.
- You require 208/230V power connections
- You need to cool spaces over 550 sq. ft.
- You prioritize the lightest possible indoor unit
Verdict: DELLA Vita 12000 BTU 115V Mini Split suits those with standard outlets needing quiet, efficient cooling for small to medium rooms. It delivers stable temperatures via inverter tech and smart remote sensing.
ROVSUN 12000 BTU 230V Mini Split
Best for: single rooms with 230V power
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12,000 BTU
- Coverage Area
- Up to 550 sq ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 230V
- Smart Compatibility
- Remote control
This ROVSUN unit delivers 12,000 BTU of cooling and heating for spaces up to 550 square feet. It operates on 230V power and achieves a 20 SEER2 efficiency rating. The inverter technology helps maintain consistent temperatures while saving energy. You get a remote control with multiple modes, including sleep and turbo settings. The indoor unit runs quietly between 28 and 45 dBA. This model is a solid choice if you need reliable climate control for a medium-sized room.
- 20 SEER2 energy efficiency rating
- Inverter technology for stable temperatures
- Quiet operation from 28 to 45 dBA
- Remote control with 24-hour timer
- Heavier at 70 pounds compared to lighter competitors
- Single zone capacity limits whole-home use
- 230V requirement excludes 115V outlets
- You need efficient cooling for a room up to 550 square feet
- You have a 230V electrical outlet available
- You want quiet operation for a bedroom or office
- You only have standard 115V outlets
- You need to cool multiple separate zones
- You require smart home app integration
Verdict: ROVSUN 12000 BTU Mini Split 20 SEER2 fits buyers who prioritize energy efficiency and quiet performance in a single medium-sized room. It is ideal for spaces with 230V power access.
Upstreman 12000 BTU 230V Silver Mini Split
Best for: 230V spaces needing silver aesthetics
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12000 BTU
- Coverage Area
- Up to 750 sq ft
- SEER2 Rating
- 20 SEER2
- Voltage
- 230V
- Smart Compatibility
- WiFi, Smart Life app
The Upstreman 12000 BTU Mini Split is a 230V heat pump with 20 SEER2 efficiency. It cools and heats spaces up to 750 square feet. The unit operates in outdoor temperatures from -4°F to 122°F. You get smart control via Wi-Fi and the Smart Life app. The silver finish offers a distinct look compared to standard white models. It includes heavy-duty mounting brackets in the box.
- 20 SEER2 energy efficiency rating
- Wi-Fi connectivity for app control
- Includes waterproof mounting brackets
- Operates in temperatures as low as -4°F
- Requires 230V electrical connection
- Heavier at 112 pounds
- You have a 230V outlet available
- You prefer a silver finish
- You want included mounting hardware
- You only have 115V outlets
- You need a white finish
- You want a lighter unit
Verdict: Upstreman 12000 BTU Mini Split suits buyers with 230V wiring who want a silver unit with included brackets. It delivers solid 20 SEER2 performance for medium spaces.
COSTWAY 28K Tri 3 Zone Mini Split
Best for: multi-zone cooling and heating in larger homes
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 28000 BTU
- SEER2 Rating
- 20 SEER2
- Voltage
- 208/230V
- Number of Zones
- Tri 3 Zone
- Smart Compatibility
- WiFi, Alexa, Google assistant, remote
This COSTWAY system delivers 28,000 BTU across three zones for larger spaces. It carries a 20 SEER2 rating for efficient cooling and heating. The unit supports 208-230V power and includes Wi-Fi control. You get independent temperature management for each zone. The outdoor unit operates reliably in extreme weather. This setup suits homes needing multi-room climate control without separate units.
- 20 SEER2 energy efficiency rating
- Tri-zone design with 9k+9k+18k BTU distribution
- Wi-Fi control via app and voice assistants
- Operates in temperatures down to -4°F
- Requires 208-230V electrical connection, not standard 115V
- Higher total BTU capacity may be excessive for small single rooms
- Larger outdoor unit dimensions at 31.9 inches wide
- You need to cool or heat three separate zones simultaneously
- You have a 208-230V electrical circuit available for installation
- You want to manage temperatures independently in different rooms
- You only have a standard 115V outlet and cannot upgrade wiring
- You are cooling a single small room and do not need multiple zones
- You prefer a simpler single-zone unit with fewer components
Verdict: COSTWAY 28K Tri-Zone Mini Split provides targeted comfort for multi-room homes. It fits buyers who need independent climate control and have the necessary high-voltage electrical setup for installation.
DREO 12000 BTU 115V Mini Split
Best for: 115V spaces needing 4-way swing
- SEER Rating
- 20 SEER2
- Cooling Capacity
- 12000 BTU
- SEER2 Rating
- 20
- Voltage
- 115V
- Smart Compatibility
- Alexa, DREO app, remote
- Operating Modes
- Cool, Heat, Dry, Fan
The DREO 12000 BTU 115V mini split delivers 20 SEER2 efficiency for year-round cooling and heating. It features 4-way auto swing for even airflow and operates as low as 28 dB. The unit supports Alexa voice control and includes a remote. It is suitable for spaces needing moderate capacity with smart integration and quiet operation.
- 20 SEER2 energy efficiency rating
- 4-way auto swing airflow
- Operates at 28 dB noise level
- Alexa voice control compatibility
- 115V voltage limits placement options
- 71.5 pounds indoor unit weight
- You need 4-way auto swing coverage
- You prefer 115V electrical connections
- You want Alexa voice control
- You require 230V power supply
- You need 18000 BTU capacity
- You want a lighter indoor unit
Verdict: DREO 12000 BTU 115V Mini Split suits users who value 4-way auto swing and 28 dB quiet operation in a 115V system.
Specifications side by side
| Spec | Rellytech 12000 BTU 20 SEER2 Mini Split | COSTWAY 12000 BTU 115V Mini Split | YITAHOME 12000 BTU 115V Mini Split | COSTWAY Blast Pro 18000 BTU 230V | Temprium 18,000 BTU Mini Split AC | Della Vario 9000 BTU Mini Split | Pioneer Diamante Pro 9000 BTU | ROVSUN 9000 BTU 20 SEER2 Mini Split | DELLA Vita 12K BTU 115V Mini Split | ROVSUN 12000 BTU 230V Mini Split | Upstreman 12000 BTU 230V Silver Mini Split | COSTWAY 28K Tri 3 Zone Mini Split | DREO 12000 BTU 115V Mini Split |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity | 12000 BTU | 12000 BTU | 12,000 BTU | 18000 BTU | 18000 BTU | 9000 BTU | 9,000 BTU | 9000 BTU | 12,000 BTU | 12,000 BTU | 12000 BTU | 28000 BTU | 12000 BTU |
| Coverage Area | Up to 750 sq ft | up to 750 Sq. Ft | 750 sq ft | Up to 1250 sq ft | Up to 1250 sq ft | Up to 400 Sq. Ft | 250 to 350 sq ft | up to 400 sq.ft. | 550 sq ft | Up to 550 sq ft | Up to 750 sq ft | – | – |
| SEER2 Rating | 20 | 20 SEER2 | 20 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 | 20 SEER2 | 20 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 |
| Voltage | 110V/115V | 115V | 115V | 208/230V | 230V | 208-230V | 230V | 115V | 115V | 230V | 230V | 208/230V | 115V |
| Number of Zones | – | – | – | – | – | – | Single zone | – | – | – | – | Tri 3 Zone | – |
| Smart Compatibility | Wi-Fi, voice control, remote | remote control | Alexa, Wi-Fi, remote | Alexa, Google Assistant, Wi-Fi, remote | – | Alexa, Wi-Fi app, remote control | Remote | app, Alexa, Google Assistant, remote | Alexa, Google Assistant, DELLA App | Remote control | WiFi, Smart Life app | WiFi, Alexa, Google assistant, remote | Alexa, DREO app, remote |
| Operating Modes | Cooling, heat pump, dry, fan-only | auto, cool, dry, heat, fan | Auto, Cooling, Drying, Heating, Fan | Auto, cool, heat, dry, fan, ECO, sleep | Auto, Cool, Heat, Dry, Fan, Sleep, ECO | Heating, cooling, dry | Cooling, Heating, Dry, Fan | cooling, heating, dehumidification | – | – | Auto, Cool, Heat, Dry, Fan, Sleep, Eco | auto, cool, heat, dry, fan, ECO, sleep | Cool, Heat, Dry, Fan |
| Features | Inverter, Quiet Operation | Inverter | Inverter, Cover | Inverter | Quiet Operation | Inverter | Inverter, Quiet Operation | Inverter | Inverter | Inverter, Remote | Inverter | – | Auto Swing, Quiet Operation |
| Control Method | Wi-Fi, Wi-Fi App Control, Wi-Fi App | – | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | – | Wi-Fi, Wi-Fi App Control, Wi-Fi App | Wi-Fi, Wi-Fi App Control, Wi-Fi App, Voice Control | Remote Control | Wi-Fi, Wi-Fi App Control, Wi-Fi App | Wi-Fi, Wi-Fi App Control, Wi-Fi App | Voice Control |
| Color | White | White | White | White | White | White | White | White | White | White | Silver | White | White |
| Operating Mode | Heater | Heater | Heater | Heater | Heater | Heater | Heater | Heater | Heater | Heater | – | Heater | – |
| SEER Rating | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 | 20 SEER2 |
| Mounting Type | – | Wall-Mounted | – | – | – | – | Wall-Mounted | – | – | – | – | – | – |
| Dimensions | 8.66 × 31.9 × 11.4 inches | 9 × 44.5 × 13 inches | 7.9 × 31.2 × 11.5 inches | 7.68 × 35.8 × 12 inches | 8.74 × 37.8 × 12.4 inches | 8 × 31.9 × 11.5 inches | 8 × 31.9 × 11.5 inches | 7.99 × 31.9 × 11.5 inches | 7.48 × 31.9 × 12 inches | 7.99 × 31.9 × 11.5 inches | 37.3 × 28.1 × 26.8 inches | 7.48 × 31.9 × 12.1 inches | 12 × 31.5 × 21.7 inches |
| Weight | 75.3 pounds | 68 pounds | 22 pounds | 20.9 pounds | 40.8 pounds | 19.8 pounds | – | 70 pounds | 18.7 pounds | 70 pounds | 112 pounds | – | 71.5 pounds |
| Size | 12000BTU,115V,20 SEER2-WiFi | 12000BTU, 115V, 20 SEER | – | – | 18,000 BTU, 230V, 20 SEER2 | 9,000 BTU – 230V / 20 SEER2 | 250~350 sq ft | 8.07"D x 31.92"W x 11.49"H | 12,000 BTU – 115V / 20 SEER2 | 12,000 BTU, 230V, 20 SEER2 | 12000BTU 230V | Tri(3) Zone 9k+9k+18k BTU | 12000 BTU 115V |
| Model | CE0-1 | 10153-CYJV | MAYIH4qu0k | Blast Pro | SAC002-A-18KWH-US | TL-9K2VB-20S-I+O | Diamante | RV09T1/20-I/RV09T1/20-O | TC-12K1VR-20S-I+O | AC-W-12K-230V | UI12 | – | DR-HSC002S White |
For cooling systems that also supply winter heat, you can compare published specifications among the best 20 SEER2 mini splits.
How to choose the right mini split
Check your circuit voltage
Match the unit to your home’s electrical supply. The Rellytech 12000 BTU operates on standard 115V circuits, making it ideal for bedrooms or small living areas. If you have 230V access, consider the Temprium 18000 BTU for larger spaces. Always verify your breaker capacity before purchase. Using the wrong voltage can damage the unit or require expensive electrical upgrades. Stick to the voltage listed in the specs to ensure safe, reliable operation.
Match coverage to room size
Select a BTU rating that fits your square footage. The YITAHOME 12000 BTU covers up to 750 square feet, which suits most medium rooms. For smaller spaces, the Della Vario 9000 BTU handles up to 400 square feet efficiently. Oversized units cycle too often, while undersized ones struggle. Check the coverage area spec carefully. This ensures the compressor runs at optimal capacity without wasting energy or failing to reach your desired temperature.
Prioritize smart control features
Decide if you need app or voice integration. The DREO 12000 BTU supports voice control via Alexa, allowing hands-free adjustments. The ROVSUN 12000 BTU relies on a traditional remote control for simple operation. If you want to schedule cooling from your phone, look for Wi-Fi app control in the attributes. This feature adds convenience but may require a stable home network. Choose based on your daily habits and tech comfort level.
Consider quiet operation needs
Check the noise level if the unit is for a bedroom. The DREO 12000 BTU offers 28 dB quiet operation, making it suitable for sleeping areas. The Rellytech 12000 BTU also highlights quiet operation in its features list. Lower decibel ratings mean less disruption during rest. Look for this spec if you plan to install the indoor unit near your bed. It ensures comfort without background noise interfering with your sleep schedule.
Evaluate heating capabilities
Ensure the unit provides heating if you need year-round comfort. All listed models include heating operating modes. The Pioneer Diamante Pro 9000 BTU is noted for certified cold-climate heating performance. This is crucial if you live in a region with harsh winters. Verify the heating spec in the attributes to confirm it meets your local climate needs. A dual-function unit saves space and money compared to buying separate heaters.
Frequently asked questions
What is the smallest mini split in this list?
The YITAHOME 12000 BTU model is the most compact unit here. It weighs only 22 pounds and measures 7.9 inches deep. This lightweight design makes it easier to mount in tight spaces. It also supports voice control via Alexa for added convenience.
Which unit offers the best remote control features?
The ROVSUN 12000 BTU 230V Mini Split is our top pick for remote functionality. It relies solely on a traditional remote control rather than Wi-Fi. This setup ensures reliable operation without needing a network connection. It is ideal for users who prefer simple, direct command inputs.
Are there silver mini splits available?
Yes, the Upstreman 12000 BTU 230V model comes in a silver finish. It is designed for spaces with 230V wiring. The unit includes mounting brackets for installation. Its silver aesthetic offers a different look compared to the standard white models found on most listings.
How many zones does the COSTWAY 28K Tri-Zone cover?
The COSTWAY 28K Tri-Zone Mini Split handles three separate zones. It combines 9k, 9k, and 18k BTU units for multi-room comfort. This system allows independent climate control for different areas of your home. It requires 208-230V power and Wi-Fi app management for operation.
Which model has the lowest noise level?
The DREO 12000 BTU 115V Mini Split operates at 28 dB. This quiet performance is ideal for bedrooms or offices. It also features 4-way auto swing for even air distribution. The unit runs on standard 115V circuits and supports voice control via Alexa.
Do these units provide heating as well as cooling?
All listed models provide both heating and cooling functions. They operate as heat pumps with 20 SEER2 efficiency ratings. This dual capability ensures year-round comfort. You can adjust the operating mode to switch between heater and cooler settings as needed.