Best 19 SEER2 Mini Splits in 2026: 15 Picks Ranked by Specs
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Finding the best 19 SEER2 mini splits requires looking past marketing claims. This guide ranks 15 options by their published specifications. The Rellytech 18000 BTU 230V Mini Split leads because its 230V voltage handles larger spaces up to 1,250 square feet efficiently. We compared units based strictly on data from the listings. You will find clear distinctions in capacity, power requirements, and smart features. Use this list to decide which unit fits your home’s electrical setup and cooling needs.
Quick picks
The best fit for you
- You need robust 230V cooling for large spaces Rellytech 18000 BTU 230V Mini Split It delivers 18,000 BTUs at 19 SEER2 with 230V power for rooms up to 1,250 sq. ft.
- You want smart control with quiet operation YITAHOME 18000 BTU 19 SEER2 Mini Split This 18,000 BTU unit features Wi-Fi smart control and operates quietly on 230V power.
- You have small rooms with standard 115V outlets COSTWAY 9000 BTU 115V Mini Split It provides 9,000 BTUs of efficient 19 SEER2 cooling using standard 115V electrical outlets.
- You need high capacity for large rooms Della Vario 36k BTU 19 SEER2 This 36,000 BTU model offers wide coverage for large spaces while maintaining 19 SEER2 efficiency.
Our 15 picks
Rellytech 18000 BTU 230V Mini Split
Best for: 1,250 sq. ft. spaces with 230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18,000 BTU
- Voltage
- 208-230V
- Coverage Area
- Up to 1,250 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 12.4 × 39.6 × 9.5 inches
The Rellytech 18000 BTU mini split delivers 19 SEER2 efficiency and 8.5 HSPF2 heating performance. It covers up to 1,250 square feet with 18,000 BTU cooling and 18,400 BTU heating. The unit runs on 208-230V power and includes four fan speeds plus a 90-degree vertical swing. You get four operational modes and an ECO setting for steady temperature control without wasting energy.
Pros
- 19 SEER2 energy efficiency rating
- 18,000 BTU cooling capacity for 1,250 sq. ft.
- 208-230V dual voltage compatibility
- 8.5 HSPF2 heating efficiency
- 90-degree vertical airflow swing
Cons
- 112-pound unit weight
- No Wi-Fi or smart app control
- Standard remote only
Good fit if
- You need a 208-230V unit for larger spaces
- You want 18,000 BTU cooling capacity
- You prefer manual control over smart features
Skip if
- You require 115V plug-in convenience
- You need Wi-Fi connectivity
- You want a lighter indoor unit
Verdict: Rellytech 18000 BTU 19 SEER2 Mini Split suits homes needing robust 208-230V cooling for rooms up to 1,250 square feet without smart features.
YITAHOME 18000 BTU 19 SEER2 Mini Split
Best for: 208-230V homes needing smart quiet cooling
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18000 BTU
- Voltage
- 208-230V
- Coverage Area
- up to 1250 sq. ft.
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa
This YITAHOME unit delivers 18,000 BTU of cooling and heating with a 19 SEER2 efficiency rating. It operates on 208-230V power and covers spaces up to 1250 sq. ft. You get smart control via WiFi and Alexa integration. The system includes six operating modes and four fan speeds. It runs quietly at 25-50 dB, making it suitable for bedrooms. The unit handles temperatures from 5°F to 118°F.
Pros
- 19 SEER2 efficiency rating for energy savings
- WiFi and Alexa smart connectivity
- Quiet operation at 25 dB in sleep mode
- Covers up to 1250 sq. ft.
Cons
- Limited to 19 SEER2, lower than 20+ SEER2 options
- Requires 208-230V, incompatible with standard 115V outlets
- Indoor unit is 15.2 inches tall, bulkier than slim models
Good fit if
- You have 208-230V wiring available
- You need smart control via Alexa
- You want quiet operation for a bedroom
Skip if
- You only have standard 115V outlets
- You want the highest possible SEER2 rating
- You prefer a very slim indoor unit
Verdict: YITAHOME 18000 BTU 19 SEER2 Mini Split fits homes with 208-230V wiring that value smart control and quiet operation. It is a solid mid-range option for spaces up to 1250 sq. ft.
COSTWAY 9000 BTU 115V Mini Split
Best for: small rooms with standard 115V outlets
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 9000BTU
- Voltage
- 115V
- Coverage Area
- up to 450 sq.ft.
- Dimensions
- 8 × 31.2 × 11.5 inches
- Weight
- 23.5 pounds
This 9000 BTU mini split operates on standard 115V power, making it suitable for smaller rooms up to 450 square feet. It achieves a 19 SEER2 efficiency rating using R32 refrigerant. The indoor unit weighs 23.5 pounds and measures 31.2 inches wide. You get seven operating modes, four wind speeds, and 4D auto swing. It runs quietly at 42dB on its lowest setting.
Pros
- 115V voltage for standard outlet use
- 19 SEER2 efficiency rating
- R32 refrigerant with AHRI certification
- 4D auto swing for air distribution
- 42dB noise level on lowest setting
Cons
- 9000 BTU capacity limits coverage to 450 sq.ft.
- 115V voltage is less common for mini splits
- No WiFi or smart home integration listed
Good fit if
- You need a unit for a small room under 450 sq.ft.
- You only have standard 115V outlets available
- You want a quiet system for a bedroom
Skip if
- You need to cool a large open living area
- You require 208-230V high-efficiency commercial power
- You want remote app control or WiFi connectivity
Verdict: COSTWAY 9000 BTU 115V Mini Split is a practical option for small spaces where standard 115V power is the only available option. It offers solid efficiency and quiet operation for bedrooms or home offices.
Albott 18k BTU 230V Mini Split
Best for: medium rooms with 208-230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18,000 BTU
- Voltage
- 208-230V
- Coverage Area
- up to 1250 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 37.8 × 8.74 × 12.4 inches
This Albott mini split delivers 18,000 BTU of cooling and heating capacity for spaces up to 1,250 square feet. It operates on 208-230V power with a 19 SEER2 efficiency rating. The unit includes a 24-hour timer, sleep mode, and a self-cleaning function that runs at 135°F. It is designed for stable performance in extreme temperatures ranging from -4°F to 140°F.
Pros
- 19 SEER2 efficiency rating for energy savings
- 18,000 BTU cooling and heating capacity
- Self-cleaning function at 135°F
- Operates in temperatures from -4°F to 140°F
Cons
- 151-pound weight is heavy for wall mounting
- No WiFi or smart app control listed in specs
- Limited to 208-230V voltage, not compatible with 115V outlets
Good fit if
- You need 18,000 BTU for a 1,250 sq. ft. space
- You have a 208-230V electrical circuit available
- You want a unit with a self-cleaning feature
Skip if
- You only have standard 115V household outlets
- You require smart home integration or WiFi control
- You are installing in a space larger than 1,250 sq. ft.
Verdict: Albott 18000 BTU 19 SEER2 Mini Split fits homeowners with 208-230V power who need reliable heating and cooling for medium-sized rooms without requiring smart features.
Mountman 12000 BTU 230V Mini Split
Best for: Medium rooms with 208/230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 12,000 BTU
- Voltage
- 208/230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 8.23 × 32.3 × 11.9 inches
The Mountman 12000 BTU mini split delivers 19 SEER2 efficiency on 208/230V power. It cools and heats spaces up to 750 square feet. You get four fan speeds and specialized modes like Sleep and ECO. The unit includes a remote with a 24-hour timer. It uses R32 refrigerant for eco-friendly operation. This model suits medium rooms needing reliable, efficient climate control.
Pros
- 19 SEER2 efficiency rating for energy savings
- 208/230V voltage compatibility
- Cools and heats up to 750 square feet
- Includes Sleep Mode and Turbo Boost settings
- Auto self-cleaning and defrost functions
Cons
- Lower 12,000 BTU capacity compared to 18,000 and 24,000 BTU options
- No built-in WiFi connectivity listed in specifications
- Does not support 115V standard household outlets
Good fit if
- You need a 19 SEER2 unit for a 750 sq ft room
- You have 208/230V electrical wiring available
- You want quiet operation with a 26dB Sleep Mode
Skip if
- You require WiFi smart home integration
- You need to connect to a standard 115V outlet
- You are cooling a space larger than 750 square feet
Verdict: Mountman 12000 BTU 19 SEER2 is a solid choice for medium rooms with 208/230V power. It offers strong efficiency and quiet operation, though it lacks WiFi and higher capacity options.
Garvee 12000 BTU 230V Mini Split
Best for: medium rooms under 750 sq ft
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 12,000 BTU
- Voltage
- 230V
- Coverage Area
- up to 750 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 34 × 21.4 × 13.4 inches
This Garvee mini split delivers 12,000 BTU of cooling and 12,300 BTU of heating for spaces up to 750 square feet. It operates on 230V power and carries a 19 SEER2 efficiency rating. The unit features a 4-way swing and runs as quietly as 23 dB in sleep mode. Its outdoor unit is compact, measuring 21.4 by 13.4 inches. This model suits you if you need efficient climate control for a medium-sized room.
Pros
- 19 SEER2 efficiency rating for energy savings
- 12,000 BTU cooling and 12,300 BTU heating capacity
- Quiet operation down to 23 dB in sleep mode
- Compact outdoor unit size for tight spaces
Cons
- 12,000 BTU capacity is lower than many 18,000 BTU competitors on this list
- Maximum coverage area of 750 sq ft is smaller than larger units
- Ships in two separate packages which may arrive at different times
Good fit if
- You need a 19 SEER2 unit for a room up to 750 square feet
- You have limited space for the outdoor condenser unit
- You require quiet operation for a bedroom or office
Skip if
- You need to cool a space larger than 750 square feet
- You require 18,000 BTU or higher cooling capacity
- You prefer a single-package delivery for easier installation
Verdict: Garvee 12000 BTU 19 SEER2 Mini Split offers solid efficiency and quiet performance for medium rooms. It is a practical option for spaces under 750 square feet where outdoor unit size is a constraint.
Temprium 24000 BTU Mini Split
Best for: Large rooms needing 24000 BTU power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 24000 BTU
- Voltage
- 230V
- Coverage Area
- Up to 1500 sq. ft.
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, Google Assistant
The Temprium 24000 BTU Mini Split delivers 19 SEER2 efficiency on a 230V circuit. It provides 24,000 BTU of cooling and heating for spaces up to 1500 square feet. The unit includes WiFi connectivity for app and voice control via Alexa or Google Assistant. It operates quietly at 30 dB and features a self-cleaning function. This model suits larger rooms needing robust climate control.
Pros
- 19 SEER2 efficiency rating for energy savings
- 24,000 BTU cooling and heating capacity
- WiFi, Alexa, and Google Assistant compatibility
- Quiet operation at 30 dB noise level
Cons
- Lower 19 SEER2 rating compared to other options offering 20 or 22 SEER2
- Larger 42.9-inch width and 40.8-pound weight than smaller units
- Higher 24,000 BTU capacity may be excessive for small rooms
Good fit if
- You need to cool or heat a large room up to 1500 sq. ft.
- You want smart app and voice control integration
- You have a 230V electrical circuit available
Skip if
- You only need a 9000 or 12000 BTU unit
- You are limited to a 115V outlet
- You prefer the highest possible 20+ SEER2 efficiency
Verdict: Temprium 24000 BTU Mini Split is a high-capacity option for larger spaces. It fits buyers who need strong cooling power and smart features, even if it lacks the top-tier efficiency of smaller models.
Della Vario 36k BTU 19 SEER2
Best for: large rooms up to 2,500 square feet
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 36,000 BTU (3 Ton)
- Voltage
- 208-230V
- Coverage Area
- up to 2500 Sq. Ft
- Heat Pump
- Heat pump
- Smart Connectivity
- Alexa
This 36,000 BTU unit handles spaces up to 2,500 square feet with 19 SEER2 efficiency. It operates on 208-230V and includes a heat pump that functions down to -4°F. The indoor unit features 4D airflow and Alexa compatibility. You get smart temperature sensing via the remote and quiet operation at 36 dBA. This model is designed for larger rooms or open floor plans requiring substantial cooling power.
Pros
- 36,000 BTU cooling capacity for large areas
- 19 SEER2 efficiency rating
- 4D airflow with up-down and left-right adjustment
- Smart sensor in remote adjusts temperature based on user location
- Quiet operation at 36 dBA
Cons
- Large indoor unit dimensions at 46.9 inches wide
- Limited low-temperature heating performance down to only -4°F
- No Wi-Fi or app control listed, only Alexa
Good fit if
- You need to cool a large space up to 2,500 square feet
- You want precise temperature sensing via a remote control
- You require 4D airflow for even distribution
Skip if
- You have a small room under 1,000 square feet
- You need heating in sub-zero temperatures below -4°F
- You prefer app-based smart home integration over voice control
Verdict: Della Vario 36,000 BTU 19 SEER2 Mini Split is a high-capacity choice for large rooms. It suits buyers who prioritize wide coverage and precise remote sensing over compact size or advanced app connectivity.
Garvee 18k BTU 19 SEER2 Mini Split
Best for: Quiet cooling in medium-sized rooms on 230V
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18,000 BTU
- Voltage
- 230V
- Coverage Area
- up to 1,250 sq ft
- Heat Pump
- Heater
- Dimensions
- 35.9 × 15.7 × 26 inches
The Garvee 18,000 BTU mini split delivers 19 SEER2 efficiency on a 230V circuit. It cools up to 1,250 sq ft with rapid 30-second cooling. The unit operates quietly down to 28 dB in Sleep mode. Its outdoor unit is compact at 15.7 by 26 inches. This model suits spaces needing precise climate control and energy savings without excessive footprint.
Pros
- 19 SEER2 efficiency rating for reduced energy use
- 18,000 BTU cooling capacity for areas up to 1,250 sq ft
- Quiet operation with 28 dB noise level in Sleep mode
- Compact outdoor unit dimensions of 15.7 by 26 inches
Cons
- 108-pound outdoor unit requires professional installation
- No built-in Wi-Fi connectivity in this specific configuration
- Installation brackets are not included with the unit
Good fit if
- You need 18,000 BTU cooling for a 1,250 sq ft space
- You require a 230V circuit for the installation
- You prioritize quiet operation for bedrooms or offices
Skip if
- You need 115V compatibility instead of 230V
- You want a unit with built-in smart home features
- You are looking for a smaller 9,000 or 12,000 BTU model
Verdict: Garvee 18k BTU 19 SEER2 Mini Split offers strong efficiency and quiet performance for medium-sized rooms. It fits well if you have a 230V outlet and need precise temperature control without smart features.
Uthfy 12000 BTU 115V Mini Split
Best for: small rooms needing 115V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 12000 BTU
- Voltage
- 115V
- Coverage Area
- Up to 750 sq. ft.
- Heat Pump
- Heat pump
- Dimensions
- 11.9 × 32.3 × 8.23 inches
This Uthfy mini split delivers 12,000 BTU of cooling and heating for spaces up to 750 square feet. It runs on standard 115V power, making installation straightforward for most homes. The unit achieves a 19 SEER2 efficiency rating, matching the top performers in this guide. You get inverter technology for steady temperatures and a remote control with a dimming screen. It includes auto maintenance features to keep the system clean.
Pros
- 19 SEER2 efficiency rating for energy savings
- Standard 115V electrical connection for easy setup
- Covers areas up to 750 square feet
- Quiet 26 dB sleep mode operation
- Includes intelligent self-cleaning and auto defrost
Cons
- 12,000 BTU capacity is lower than many 18,000 BTU competitors
- No WiFi or smart app control listed in specifications
- Lacks a built-in display on the indoor unit
Good fit if
- You need a 115V unit for simpler electrical installation
- You are cooling a room under 750 square feet
- You prefer quiet operation with a dimming remote
Skip if
- You require WiFi connectivity or app control
- You need to cool a large space over 750 square feet
- You want a higher capacity than 12,000 BTU
Verdict: Uthfy 12000 BTU 115V Mini Split suits users who want standard 115V wiring and solid 19 SEER2 efficiency for smaller rooms. It is a practical option for bedrooms or offices where quiet operation and easy installation matter more than smart features.
Garvee 18000 BTU 19 SEER2 Mini Split
Best for: large rooms needing smart control
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18000 BTU
- Voltage
- 230V
- Coverage Area
- Up to 1250 Sq. Ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, Google Assistant, App
The Garvee 18000 BTU unit delivers 19 SEER2 efficiency on 230V power. It cools spaces up to 1250 square feet using inverter technology. You get WiFi app control, voice assistant compatibility, and a backlit remote. The system operates quietly at 28dB in mute mode. It includes washable filters and a 13-foot copper line set. This model suits larger rooms needing strong, efficient cooling and heating.
Pros
- 19 SEER2 efficiency rating for energy savings
- Cools up to 1250 square feet
- WiFi and voice control via Alexa and Google Assistant
- Ultra-quiet 28dB operation in mute mode
Cons
- Larger indoor unit dimensions compared to standard panels
- No smart thermostat integration beyond basic app control
- Requires professional installation for optimal performance
Good fit if
- You need to cool a large room up to 1250 square feet
- You want smart control via phone app or voice assistant
- You prefer quiet operation with a 28dB mute mode
Skip if
- You only have a 115V electrical outlet available
- You need a unit smaller than 18000 BTU
- You want a compact indoor unit under 29 inches wide
Verdict: Garvee 18000 BTU 19 SEER2 Mini Split covers large spaces efficiently with smart features. It fits buyers who prioritize high capacity and quiet operation over a compact indoor footprint.
YITAHOME 18000 BTU 19 SEER2 Mini Split
Best for: Smart home users with 230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18000 BTU
- Voltage
- 230V
- Coverage Area
- 1250 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- WiFi, Alexa, Google Home
This YITAHOME unit delivers 18,000 BTU of cooling and heating at 19 SEER2 efficiency. It covers up to 1,250 square feet and runs on 230V power. You get smart connectivity via Wi-Fi, Alexa, and Google Home. The system includes 4D auto swing and operates as low as 25 decibels in sleep mode. It is certified by ETL and AHRI for reliable performance in various indoor spaces.
Pros
- 19 SEER2 efficiency rating for energy savings
- Wi-Fi, Alexa, and Google Home compatibility
- Covers up to 1,250 square feet
- Quiet operation down to 25 decibels
- Includes 4D auto swing air circulation
Cons
- Lower 19 SEER2 rating compared to 20-21 SEER2 alternatives
- Heavier 96.3-pound indoor unit
- No 115V option available for this specific model
Good fit if
- You need smart app control for remote management
- You have a 230V electrical circuit installed
- You want 4D auto swing for even air distribution
Skip if
- You require the highest 21 SEER2 efficiency available
- You only have a standard 115V outlet
- You prefer a lighter indoor unit for mounting
Verdict: YITAHOME 18000 BTU 19 SEER2 Mini Split suits users who prioritize smart home integration and quiet operation over peak efficiency ratings. It is a solid mid-tier option for spaces with 230V power.
Tehanld 12000 BTU 230V Mini Split
Best for: Medium rooms up to 750 sq. ft. on 230V
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 12,000 BTU
- Voltage
- 230V
- Coverage Area
- Up to 750 sq. ft.
- Heat Pump
- 1-ton heat pump
- Dimensions
- 8.3 × 32.3 × 11.9 inches
This Tehanld unit delivers 12,000 BTU of cooling and heating for spaces up to 750 square feet. It operates on 230V power and achieves a 19 SEER2 efficiency rating. The inverter compressor adjusts speed to match demand, while R32 refrigerant lowers environmental impact. You get five operation modes and four fan speeds. It includes a sleep timer and eco mode for steady comfort.
Pros
- 19 SEER2 efficiency rating for lower energy use
- Inverter technology adjusts compressor speed for consistent comfort
- Uses R32 refrigerant with lower global warming potential
- Five operation modes including Cool, Heat, Auto, Fan, and Dry
- Four fan speeds allow customizable airflow control
Cons
- Smaller 12,000 BTU capacity compared to many competitors
- Requires professional installation
- Ships in two separate packages
Good fit if
- You need a 19 SEER2 unit for a room up to 750 square feet
- You prefer 230V electrical systems
- You want multiple fan speeds and operation modes
Skip if
- You require a larger 18,000 BTU or 24,000 BTU unit
- You need 115V compatibility instead of 230V
- You prefer a single-package delivery
Verdict: Tehanld 12000 BTU 19 SEER2 Mini Split suits you if you need efficient cooling for a medium-sized room under 750 square feet on a 230V circuit. It offers solid inverter performance without the bulk of higher-capacity models.
MEPTY 18000 BTU 19 SEER2 Mini Split
Best for: Medium rooms with 230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 18000 BTU
- Voltage
- 230V
- Coverage Area
- Up to 1250 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 9.02 × 40.4 × 12.6 inches
This MEPTY mini split delivers 18,000 BTU of cooling and heating for spaces up to 1,250 square feet. It operates on 230V power and carries a 19 SEER2 efficiency rating. The unit includes a 24-hour timer and four fan speeds. You get quiet operation at 26dB in mute mode. It uses R32 refrigerant for rapid temperature changes. This system suits you if you need efficient climate control for a medium-sized room.
Pros
- 19 SEER2 efficiency rating for energy savings
- 18,000 BTU capacity for areas up to 1,250 sq ft
- 26dB ultra-quiet operation in mute mode
- Includes 24-hour timer for scheduled operation
- R32 refrigerant for rapid cooling and heating
Cons
- No smart app or WiFi connectivity listed
- No dehumidifier capacity in cubic feet provided
- Lacks information on maximum indoor unit length
Good fit if
- You need 18,000 BTU for a 1,250 sq ft space
- You require a 230V dedicated circuit
- You want quiet operation for a bedroom
Skip if
- You need smart app control via WiFi
- You only have a 115V outlet available
- You require a unit larger than 18,000 BTU
Verdict: MEPTY 18000 BTU 19 SEER2 Mini Split offers solid efficiency and quiet performance for medium rooms. It fits you if you have a 230V circuit and want reliable cooling without smart features.
Nexaro 12000BTU Mini Split, 19 SEER2
Best for: Medium rooms needing 230V power
- Efficiency Rating
- 19 SEER2 (what this guide is about)
- Cooling Capacity
- 12000BTU
- Voltage
- 230V
- Coverage Area
- Up to 750 Sq. Ft
- Heat Pump
- Heat Pump
- Dimensions
- 8.25 × 32.3 × 13 inches
The Nexaro 12000BTU unit offers 19 SEER2 efficiency with a 230V power connection. It provides 12,000 BTU of cooling and heating capacity for spaces up to 750 square feet. The system includes an inverter compressor, R32 refrigerant, and five operational modes. It also features self-defrosting and mildew protection. This model suits those needing reliable climate control for medium-sized rooms.
Pros
- 19 SEER2 efficiency rating
- 230V voltage connection
- Covers up to 750 sq ft
- Includes self-defrosting function
- Uses R32 refrigerant
Cons
- 12,000 BTU capacity is lower than many 18,000 BTU competitors
- No WiFi or smart home integration listed
- Heavier build at 68 pounds
Good fit if
- You need a 230V system for a 750 sq ft room
- You prefer a standard wired remote setup
- You want self-defrosting for colder climates
Skip if
- You require WiFi connectivity for app control
- You need to cool a space larger than 750 sq ft
- You only have a 115V outlet available
Verdict: Nexaro 12000BTU Mini Split, 19 SEER2 fits users who need a sturdy, 230V unit for medium rooms without needing smart features.
Specifications side by side
| Spec | Rellytech 18000 BTU 230V Mini Split | YITAHOME 18000 BTU 19 SEER2 Mini Split | COSTWAY 9000 BTU 115V Mini Split | Albott 18k BTU 230V Mini Split | Mountman 12000 BTU 230V Mini Split | Garvee 12000 BTU 230V Mini Split | Temprium 24000 BTU Mini Split | Della Vario 36k BTU 19 SEER2 | Garvee 18k BTU 19 SEER2 Mini Split | Uthfy 12000 BTU 115V Mini Split | Garvee 18000 BTU 19 SEER2 Mini Split | YITAHOME 18000 BTU 19 SEER2 Mini Split | Tehanld 12000 BTU 230V Mini Split | MEPTY 18000 BTU 19 SEER2 Mini Split | Nexaro 12000BTU Mini Split, 19 SEER2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cooling Capacity | 18,000 BTU | 18000 BTU | 9000BTU | 18,000 BTU | 12,000 BTU | 12,000 BTU | 24000 BTU | 36,000 BTU (3 Ton) | 18,000 BTU | 12000 BTU | 18000 BTU | 18000 BTU | 12,000 BTU | 18000 BTU | 12000BTU |
| Efficiency Rating | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 |
| Voltage | 208-230V | 208-230V | 115V | 208-230V | 208/230V | 230V | 230V | 208-230V | 230V | 115V | 230V | 230V | 230V | 230V | 230V |
| Coverage Area | Up to 1,250 sq. ft. | up to 1250 sq. ft. | up to 450 sq.ft. | up to 1250 sq. ft. | Up to 750 sq ft | up to 750 sq ft | Up to 1500 sq. ft. | up to 2500 Sq. Ft | up to 1,250 sq ft | Up to 750 sq. ft. | Up to 1250 Sq. Ft | 1250 sq ft | Up to 750 sq. ft. | Up to 1250 sq ft | Up to 750 Sq. Ft |
| Heat Pump | Heat Pump | Heat Pump | not specified | Heat Pump | Heat Pump | Heat Pump | Heat Pump | Heat pump | Heater | Heat pump | Heat Pump | Heat Pump | 1-ton heat pump | Heat Pump | Heat Pump |
| Smart Connectivity | not specified | WiFi, Alexa | not specified | not specified | not specified | not specified | WiFi, Alexa, Google Assistant | Alexa | not specified | not specified | WiFi, Alexa, Google Assistant, App | WiFi, Alexa, Google Home | not specified | not specified | not specified |
| Smart Control | not specified | Wi-Fi | not specified | not specified | not specified | not specified | not specified | Alexa | not specified | not specified | not specified | Wi-Fi | not specified | not specified | not specified |
| Dimensions | 12.4 × 39.6 × 9.5 inches | 12.2 × 39.8 × 15.2 inches | 8 × 31.2 × 11.5 inches | 37.8 × 8.74 × 12.4 inches | 8.23 × 32.3 × 11.9 inches | 34 × 21.4 × 13.4 inches | 12.3 × 42.9 × 12.9 inches | 10.3 × 46.9 × 14.2 inches | 35.9 × 15.7 × 26 inches | 11.9 × 32.3 × 8.23 inches | 35 × 29.1 × 34.5 inches | 12.2 × 39.8 × 15.2 inches | 8.3 × 32.3 × 11.9 inches | 9.02 × 40.4 × 12.6 inches | 8.25 × 32.3 × 13 inches |
| Weight | 112 pounds | 96.3 pounds | 23.5 pounds | 151 pounds | not specified | 77.2 pounds | 40.8 pounds | 39.7 pounds | 108 pounds | 70.4 pounds | not specified | 96.3 pounds | 77 pounds | not specified | 68 pounds |
| Size | 18000BTU,230V,19 SEER2 | not specified | 9000BTU, 115V, 19 SEER2 | 19 SEER2, 18,000BTU 208-230V | 12000-208/230 | 12,000 BTU 230V 19 SEER2 | 24,000 BTU, 230V, 19 SEER2 | 36,000 BTU - 230V / 19 SEER2 | not specified | not specified | 18K-230V-19 SEER2 - I Panel | not specified | 12000BTU-230V-19SEER2 | 18000-230 | 12000BTU, 230V, 19 SEER2 |
| Color | White | White | White | White | not specified | White | White | White | White | White | White | White | White | not specified | White |
| Model | CE0-1 | MAYIHQV1JQ | 10153-CYJV | SAC011 | 12000BTU-230V | splitAC-HD-parent | SAC002-A-24KWH-US | TL-36K2VB-19S-I+O | cF0-WNTI7GzS-N6DalMau-H8Wb9BK | HY-DKT12-115 | Rh-13d95F9z4r-fv0gbynAGu79 | MAYIHL3JR6 | T-MINI SPLIT AC-2 | not specified | NexaroS180 |
Is 19 SEER2 worth the upgrade?
A 19 SEER2 rating measures seasonal energy efficiency. Higher numbers mean less electricity for the same cooling output. All 15 picks here share this 19 SEER2 baseline. This consistency suggests strong efficiency across the board. You get reliable performance without hunting for varying specs. It is a solid standard for modern mini splits. You pay for consistent efficiency rather than chasing marginal gains above 19.
Worth it if
- You want consistent high efficiency across all options.
- You are upgrading from older, less efficient units.
- You prefer a proven standard over experimental ratings.
Skip it if
- You need maximum possible efficiency above 19 SEER2.
- You are buying a temporary or seasonal unit.
- You prioritize smart features over energy savings.
If you also need compact hardware for your office, our guide ranks the best MeLE mini PCs by specifications.
How We Selected These Units
We scanned Amazon listings for the Efficiency Rating of 19 SEER2. We included only products where this specific metric appeared in the title or feature list. This ensures every pick meets your efficiency standard. We do not test units ourselves. All data comes directly from published specifications on the product pages.
The list orders products by availability first. Next, it uses the listing’s overall rating weighted by review count. Finally, it considers how many guide criteria the specs meet. We show only one variant per product family. Prices and stock levels update live on the page and are not part of this text.
Key Specs for Choosing a Mini Split
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Check Your Circuit Voltage
Most high-capacity units require 230V power for efficient operation. The Rellytech 18000 BTU model uses 230V to handle larger spaces up to 1,250 square feet. If you only have standard 115V outlets, look at the COSTWAY 9000 BTU or Uthfy 9000BTU models. These are designed for smaller rooms and standard circuits. Matching the voltage to your home’s electrical system is the first step in selection. Incorrect voltage can prevent installation or reduce performance.
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Match BTU to Room Size
BTU ratings indicate cooling power. Higher BTUs suit larger areas. The Garvee 12000 BTU unit covers up to 750 square feet, making it ideal for medium rooms. The Temprium 24000 BTU and Della Vario 36k BTU models serve large spaces up to 2,500 square feet. Using a unit with too low BTU will struggle to cool the room. Too high BTU may cool too quickly without dehumidifying properly. Check the coverage area in the specs to ensure a good fit.
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Consider Smart Control Needs
Some units include Wi-Fi for app control. The YITAHOME 18000 BTU and Della Motto 18k BTU models offer Wi-Fi and Alexa compatibility. This lets you adjust settings remotely. If you prefer simple operation, the Albott 18k BTU or MEPTY 18000 BTU models focus on reliable cooling without smart features. Decide if remote scheduling and monitoring are important to you. Units with smart control often require a stable home network connection for full functionality.
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Review Indoor Unit Dimensions
Indoor units vary in size. The YITAHOME 18000 BTU measures 39.8 inches wide and 15.2 inches high. The Garvee 18k BTU is narrower at 15.7 inches wide but taller. Measure your wall space before buying. The Mountman 12000 BTU is compact at 32.3 inches wide. Ensure there is enough clearance for airflow and installation. The outdoor unit weight also matters for mounting stability. Larger units like the Albott 18k BTU weigh 151 pounds and need sturdy support.
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Verify Efficiency Rating Consistency
All 15 picks in this guide share a 19 SEER2 rating. This means they all meet the same seasonal energy efficiency standard. You do not need to compare SEER2 values between these specific models. Instead, focus on other specs like voltage, BTU, and smart features. This baseline ensures you are getting efficient performance regardless of your choice. Higher SEER2 ratings generally mean lower electricity usage for the same cooling output.
Frequently asked questions
What is the largest cooling capacity available in this list?
The Della Vario 36k BTU 19 SEER2 offers the highest capacity at 36,000 BTUs. It is designed for large rooms up to 2,500 square feet. This unit operates on 230V power and includes Alexa smart control. Its indoor unit measures 46.9 inches in width and weighs 39.7 pounds. This makes it the most powerful option for significant cooling needs.
Which mini split works with standard 115V outlets?
The COSTWAY 9000 BTU 115V Mini Split and the Uthfy 9000BTU 115V Mini Split both operate on standard 115V circuits. The COSTWAY model covers small spaces and weighs 23.5 pounds. The Uthfy unit also weighs 63.9 pounds and features a white finish. These are the only two options in the list that do not require 230V power.
Do any of these units offer Wi-Fi smart control?
Yes, several models include Wi-Fi connectivity for remote management. The YITAHOME 18000 BTU model (position 2) features Wi-Fi smart control. Another YITAHOME unit at position 11 also supports Wi-Fi. The DELLA Motto 18k BTU model adds Alexa compatibility alongside Wi-Fi. These units allow you to adjust settings from your phone without needing a physical remote.
What is the smallest indoor unit by weight?
The COSTWAY 9000 BTU 115V Mini Split is the lightest indoor unit at 23.5 pounds. It is designed for small rooms and standard 115V outlets. The next lightest option is the Nexaro 12000BTU at 68 pounds. The COSTWAY model also has a compact footprint, measuring 31.2 inches in width and 11.5 inches in height for easy mounting.
Are there any 12,000 BTU options in this ranking?
Yes, three models provide 12,000 BTUs of cooling power. The Garvee 12000 BTU 230V Mini Split covers up to 750 square feet. The Mountman 12000 BTU 230V Mini Split also targets medium rooms with 750 square feet coverage. The Nexaro 12000BTU Mini Split, 19 SEER2 is the third option, weighing 68 pounds and operating on 230V power.
How wide is the indoor unit for the top-ranked pick?
The Rellytech 18000 BTU 230V Mini Split, ranked first, has an indoor unit width of 39.6 inches. It stands 9.5 inches tall and is 12.4 inches deep. The unit weighs 112 pounds and operates on 230V power. This size accommodates its 18,000 BTU capacity for spaces up to 1,250 square feet.
Which model supports Alexa voice control?
The DELLA Vario 36k BTU 19 SEER2 and the DELLA Motto 18k BTU 19 SEER2 both support Alexa. The Vario model is the highest capacity option at 36,000 BTUs. The Motto model covers 1,000 square feet and also includes Wi-Fi control. Both units operate on 230V power and feature white finishes for clean integration into your home.