6 Best Alternatives to the SIMOE Mini Split AC/Heating System (2026)
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If you are looking for simoe mini split AC heating system alternatives, this guide compares seven top options against the SIMOE 18000 BTU 230V Mini Split. The SIMOE unit covers up to 1,250 square feet with 17 SEER2 efficiency and quiet 38 dB operation. It includes smart WiFi control and operates in temperatures from 5°F to 109.4°F. These specifications make it a strong baseline for comparison.
You might choose a different model if you need a different capacity, voltage, or feature set. For example, some buyers prefer smaller units for compact rooms or higher efficiency ratings for maximum energy savings. The alternatives listed here were selected because their published specifications overlap with the SIMOE system. Each option shares key traits like 230V power, inverter technology, or similar cooling capacities. This list helps you find a unit that matches your specific room size and electrical requirements without guessing.
How these alternatives compare to SIMOE
Rellytech 17000 BTU 230V Mini Split
The Rellytech 17000 BTU model shares the 17 SEER2 efficiency and 230V requirement of the SIMOE unit, but it targets a slightly smaller space with 17,000 BTU of cooling power. It distinguishes itself with 4D airflow and iFEEL sensing, which the SIMOE does not list. This makes it better for precise temperature control in rooms where air distribution matters. The indoor unit is also narrower at 31.9 inches wide, fitting tighter wall spaces than the SIMOE’s 38-inch chassis. You lose the SIMOE’s specific 38 dB quiet rating claim, but gain advanced airflow modes. Choose this if you need hardwired 230V power and smarter air direction rather than maximum coverage area.
COSTWAY 9000 BTU Mini Split
The COSTWAY 9000 BTU unit is significantly smaller and lighter than the SIMOE, weighing just 24.4 pounds compared to 88.5 pounds. It offers 9,000 BTU of cooling, which is less than half the SIMOE’s 18,000 BTU capacity. Like the SIMOE, it runs on 230V and achieves 17 SEER2 efficiency. However, it lacks the smart WiFi and app control features found in the SIMOE. It is designed for small rooms where basic heating and cooling are sufficient. You should pick this alternative if you have a smaller space under 500 square feet and do not need voice assistant integration or heavy-duty performance. It is a simpler, more compact solution for modest cooling needs.
YITAHOME 12000 BTU 230V Mini Split
The YITAHOME 12000 BTU mini split offers 17 SEER2 efficiency and 230V operation, matching the SIMOE’s power and efficiency specs. However, it provides 12,000 BTU of cooling, which is lower than the SIMOE’s 18,000 BTU. It includes Wi-Fi smart control, similar to the SIMOE’s app and Alexa capabilities. The unit is much lighter at 21.1 pounds and narrower at 31.2 inches wide. It is better suited for small rooms where high capacity is not required. You give up the SIMOE’s larger coverage area and higher BTU output. Choose this option if you prioritize smart features and a compact footprint over raw cooling power for a medium-sized room.
Nexaro 12000 BTU 230V Mini Split
The Nexaro 12000 BTU unit matches the SIMOE’s 230V voltage and 17 SEER2 efficiency rating. It provides 12,000 BTU of cooling, which is less than the SIMOE’s 18,000 BTU. It covers up to 750 square feet, significantly smaller than the SIMOE’s 1,250 square feet capacity. The Nexaro is designed for wall mounting and includes installation hardware. It lacks the detailed smart features and multiple fan speeds listed for the SIMOE. It is a straightforward cooling solution for medium rooms. Pick this alternative if you need efficient 230V cooling for a smaller space and do not require the advanced smart controls or higher capacity of the SIMOE system.
LITHZEN 24000 BTU 230V Mini Split
The LITHZEN 24000 BTU model offers significantly more power than the SIMOE, with 24,000 BTU compared to 18,000 BTU. It shares the 17 SEER2 efficiency and 230V requirement. It includes Wi-Fi smart control, similar to the SIMOE. The unit covers up to 1,500 square feet, which is larger than the SIMOE’s 1,250 square feet. It is heavier and wider, making it suitable for large rooms or open spaces. You gain more cooling capacity and coverage area. Choose this alternative if you need to cool a larger space than the SIMOE can handle and want smart features. It is the better choice for homeowners with 230V circuits who need maximum BTU output.
ROVSUN 11500 BTU 17 SEER2 Mini Split
The ROVSUN 11500 BTU unit matches the SIMOE’s 17 SEER2 efficiency and 230V voltage. It provides 11,500 BTU of cooling, which is less than the SIMOE’s 18,000 BTU. It is designed for medium rooms and lacks the smart WiFi and app control features of the SIMOE. The unit is lighter and narrower, making it easier to install in smaller spaces. It offers basic cooling and heating without advanced connectivity. You should pick this alternative if you need a quiet, efficient unit for a single room and do not require smart home integration. It is a simpler option for users who prioritize efficiency and basic performance over smart features.
Quick picks
Our 7 picks
SIMOE 18000 BTU 230V Mini Split
Best for: 230V homes needing quiet, smart climate control
- Cooling Capacity
- 18,000 BTU (1.5 Ton)
- Efficiency Rating
- 17 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 1,250 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa
View on Amazon: SIMOE 18000 BTU 230V Mini Split Affiliate link
The SIMOE 18000 BTU mini split offers 17 SEER2 cooling and 8 HSPF2 heating efficiency on 230V power. It covers up to 1,250 sq. ft. with 618 CFM airflow and operates quietly at 38 dB. You get WiFi and Alexa app control, seven operating modes, and a 24-hour timer. This system uses R32 refrigerant and includes a remote and installation kit. It is built for year-round comfort in moderate to large rooms.
Pros
- 17 SEER2 cooling and 8 HSPF2 heating efficiency
- WiFi and Alexa smart control via app
- Quiet operation at 38 dB
- Covers up to 1,250 sq. ft.
Cons
- Requires 230V electrical connection
- Heavier outdoor unit at 88.5 pounds
- Ships in separate packages
Good fit if
- You have a 230V outlet available
- You want smart app control
- You need quiet operation for bedrooms
Skip if
- You only have 115V outlets
- You need a smaller 9,000 BTU unit
- You want a single-box delivery
Verdict: SIMOE 18000 BTU 230V Mini Split is a solid choice for homeowners with 230V wiring who want efficient, quiet cooling and heating with full app control.
Rellytech 17000 BTU 230V Mini Split
Best for: hardwired 230V installations with 4D airflow needs
- Cooling Capacity
- 17000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1000 Sq.Ft
- Dimensions
- 8.66 × 35.8 × 11.6 inches
- Weight
- 78.1 pounds
View on Amazon: Rellytech 17000 BTU 230V Mini Split Affiliate link
This Rellytech mini split delivers 17000 BTU of cooling and heating for spaces up to 1000 sq. ft. It operates at 17 SEER2 efficiency on 230V power. The unit features 4D auto swing louvers and iFEEL remote sensing for targeted comfort. It runs quietly at 32 dB and includes a self-cleaning function. You should consider this model if you need hardwired installation and reliable performance in moderate climates.
Pros
- 4D auto swing louvers adjust both vertically and horizontally
- iFEEL technology senses temperature via the remote control
- Quiet operation at 32 dB with screen-off function
- Self-cleaning coil drying cycle reduces stale odors
- Heats reliably down to -4°F with auto-defrost
Cons
- Requires hardwiring to 230V power, not plug-and-play
- Mandatory professional HVAC technician installation
- 17 SEER2 is lower than the 19-21 SEER2 options available in other variations
Good fit if
- You have 230V hardwired power available for installation
- You want 4D airflow direction and remote temperature sensing
- You need a unit that heats down to -4°F
Skip if
- You prefer plug-and-play 115V convenience
- You want the highest possible SEER2 efficiency rating
- You are installing in a space larger than 1000 sq. ft.
Verdict: Rellytech 17000 BTU 17 SEER2 Mini Split suits buyers who need hardwired 230V power and advanced airflow control. It offers practical comfort features like iFEEL sensing and 4D swing, though you should choose a higher SEER2 variation if efficiency is your top priority.
COSTWAY 9000 BTU Mini Split
Best for: small rooms needing modest cooling
- Cooling Capacity
- 9,000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 450 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 8 × 31.2 × 11.5 inches
View on Amazon: COSTWAY 9000 BTU Mini Split Affiliate link
The COSTWAY 9000 BTU mini split offers 17 SEER2 efficiency on 208-230V power. It includes a 0.75 ton heat pump for year-round use. You get five modes, four fan speeds, and a remote with a timer. The unit weighs 24.4 pounds and measures 31.2 inches wide. It suits small rooms needing modest cooling capacity.
Pros
- 17 SEER2 efficiency rating
- 208-230V dual voltage support
- Includes remote control with timer
- Self-cleaning and auto defrost functions
Cons
- 9000 BTU capacity is lower than most alternatives
- No smart app or Wi-Fi connectivity listed
- Lightweight indoor unit may feel less robust
Good fit if
- You need cooling for a small room under 300 sq ft
- You prefer a compact unit under 25 pounds
- You want a heat pump with self-cleaning features
Skip if
- You require more than 9000 BTU of cooling power
- You need smart home app integration
- You prefer a higher SEER2 rating than 17
Verdict: COSTWAY 9000 BTU Mini Split AC is a compact, efficient option for small spaces. It fits buyers who need basic cooling and heating without smart features or high capacity.
YITAHOME 12000 BTU 230V Mini Split
Best for: small rooms needing smart control
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Smart Connectivity
- Wi-Fi, Alexa
View on Amazon: YITAHOME 12000 BTU 230V Mini Split Affiliate link
This YITAHOME mini split offers 12,000 BTU cooling and heating with 17 SEER2 efficiency. It covers up to 750 square feet and runs on 230V power. The unit includes Wi-Fi and Alexa compatibility for smart control. It features five operating modes and four fan speeds. The indoor unit weighs 21.1 pounds and measures 31.2 inches wide. It is designed for residential spaces like bedrooms or garages.
Pros
- 17 SEER2 efficiency rating for energy savings
- Wi-Fi and Alexa smart connectivity
- Five modes including cooling, heating, and drying
- Operates quietly at under 41 dB
- Covers up to 750 square feet
Cons
- 12,000 BTU capacity is lower than many competitors
- Indoor unit is 31.2 inches wide
- Requires licensed HVAC professional installation
Good fit if
- You need a 12,000 BTU unit for a smaller room
- You want smart control via Wi-Fi or Alexa
- You prefer a quiet system under 41 dB
Skip if
- You require more than 12,000 BTU for a large space
- You need 240V electrical support only
- You prefer a narrower indoor unit
Verdict: YITAHOME 12000 BTU 17 SEER2 Mini Split is a solid option for small rooms where smart features and quiet operation matter more than raw power. It fits users who need 12,000 BTU and Wi-Fi control.
Nexaro 12000 BTU 230V Mini Split
Best for: medium rooms with 230V power
- Cooling Capacity
- 12000BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 230V
- Coverage Area
- up to 750 sq. ft.
- Heat Pump
- Heat Pump
- Mounting Type
- Wall Mount
View on Amazon: Nexaro 12000 BTU 230V Mini Split Affiliate link
This Nexaro mini split offers 12,000 BTU cooling and heating for spaces up to 750 square feet. It runs on 230V power with a 17 SEER2 efficiency rating. The inverter compressor adjusts speed to save energy and maintain steady temperatures. You get whisper-quiet operation at 26 dB and smart control via remote. The unit includes a 9.8-foot copper piping kit for installation.
Pros
- 17 SEER2 efficiency rating for energy savings
- Covers rooms up to 750 square feet
- Quiet operation at 26 dB noise level
- Includes 9.8 ft copper piping installation kit
Cons
- Limited to 12,000 BTU capacity
- Requires 230V electrical connection
- Ships in two separate boxes
Good fit if
- You need a 12,000 BTU unit for a medium room
- You have a 230V outlet available for installation
- You want a wall-mounted system with included piping
Skip if
- You require a higher capacity than 12,000 BTU
- Your home only has 115V outlets available
- You prefer a single-box delivery experience
Verdict: Nexaro 12000 BTU 230V Wall-Mount AC fits medium rooms needing efficient 230V cooling. It delivers quiet, stable temperatures with included installation hardware.
LITHZEN 24000 BTU 230V Mini Split
Best for: large rooms with 230V power access
- Cooling Capacity
- 24000 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 208/230V
- Coverage Area
- 1500 sq.ft
- Heat Pump
- 2 Ton Heat Pump
- Smart Connectivity
- Wifi, Alexa, App
View on Amazon: LITHZEN 24000 BTU 230V Mini Split Affiliate link
This LITHZEN unit delivers 24,000 BTU of cooling and heating for spaces up to 1,500 square feet. It operates on 208/230V power with a 17 SEER2 efficiency rating. The system uses R32 refrigerant and inverter technology for stable temperatures. You get smart control via WiFi, an app, and Alexa. It includes seven modes and five fan speeds for precise comfort management.
Pros
- 24,000 BTU cooling capacity for larger rooms
- 17 SEER2 efficiency rating with R32 refrigerant
- Smart control via WiFi, app, and Alexa
- 7 modes and 5 fan speeds for customization
- Includes 9.8 ft copper piping line set
Cons
- Higher BTU output may be excessive for small spaces
- Requires professional installation only
- 208/230V voltage not compatible with standard 115V outlets
Good fit if
- You need to cool or heat a large room up to 1,500 sq.ft.
- You have a 208V or 230V electrical circuit available
- You want voice control integration with Alexa
Skip if
- You only have standard 115V household outlets
- You are cooling a small room under 500 sq.ft.
- You prefer a DIY installation without professional help
Verdict: LITHZEN 24000 BTU Mini Split is ideal for homeowners with 230V circuits who need powerful cooling for large areas up to 1,500 square feet.
ROVSUN 11500 BTU 17 SEER2 Mini Split
Best for: medium rooms needing quiet 230V cooling
- Cooling Capacity
- 11500 BTU
- Efficiency Rating
- 17 SEER2
- Voltage
- 230V
- Coverage Area
- 1000 Sq Ft
- Heat Pump
- Heat pump
- Mounting Type
- Wall Mount
View on Amazon: ROVSUN 11500 BTU 17 SEER2 Mini Split Affiliate link
The ROVSUN 11500 BTU mini split offers 17 SEER2 efficiency on 230V power. It includes heat pump, dehumidifier, and fan modes. The indoor unit runs at 33 dBa with a dimmable display. This inverter system suits medium rooms needing quiet, efficient cooling and heating. Its compact 30.6-inch width fits standard wall spaces well.
Pros
- 17 SEER2 energy efficiency rating
- Ultra-quiet 33 dBa low-speed operation
- Dimmable indoor display screen
- 230V voltage compatibility
- ETL and AHRI certified
Cons
- Lower 11500 BTU capacity than most list peers
- No smart app control listed
- Heavier 71-pound indoor unit
Good fit if
- You need a 230V system for a medium room
- You prioritize quiet operation under 35 dBa
- You want a certified unit with dimmable display
Skip if
- You require more than 12000 BTU cooling
- You need smart phone app integration
- You prefer a lighter indoor unit under 60 pounds
Verdict: ROVSUN 11500 BTU 17 SEER2 Mini Split fits users who need quiet, efficient cooling for a single medium room and do not require smart features.
Specifications side by side
| Spec | SIMOE 18000 BTU 230V Mini Split | Rellytech 17000 BTU 230V Mini Split | COSTWAY 9000 BTU Mini Split | YITAHOME 12000 BTU 230V Mini Split | Nexaro 12000 BTU 230V Mini Split | LITHZEN 24000 BTU 230V Mini Split | ROVSUN 11500 BTU 17 SEER2 Mini Split |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 18,000 BTU (1.5 Ton) | 17000 BTU | 9,000 BTU | 12,000 BTU | 12000BTU | 24000 BTU | 11500 BTU |
| Efficiency Rating | 17 SEER2 | 17 SEER2 | 17 SEER2 | 17 SEER2 | 17 SEER2 | 17 SEER2 | 17 SEER2 |
| Voltage | 230V | 208-230V | 208-230V | 208-230V | 230V | 208/230V | 230V |
| Coverage Area | Up to 1,250 sq ft | Up to 1000 Sq.Ft | Up to 450 sq ft | Up to 750 sq ft | up to 750 sq. ft. | 1500 sq.ft | 1000 Sq Ft |
| Heat Pump | Heat Pump | not stated | Heat Pump | Heat Pump | Heat Pump | 2 Ton Heat Pump | Heat pump |
| Smart Connectivity | Wi-Fi, Alexa | not stated | not stated | Wi-Fi, Alexa | not stated | Wifi, Alexa, App | not stated |
| Mounting Type | Wall Mount | not stated | not stated | not stated | Wall Mount | not stated | Wall Mount |
| Smart Control | Alexa | not stated | not stated | Wi-Fi, Alexa | not stated | Wi-Fi, Alexa | not stated |
| Dimensions | 9 × 38 × 12 inches | 8.66 × 35.8 × 11.6 inches | 8 × 31.2 × 11.5 inches | 7.9 × 31.2 × 11.5 inches | 7.5 × 31.5 × 11.4 inches | 9 × 40.5 × 13 inches | 7.94 × 30.6 × 9.84 inches |
| Weight | 88.5 pounds | 78.1 pounds | 24.4 pounds | 21.1 pounds | 68 pounds | 30 pounds | 71 pounds |
| Color | White | White | White | White | White | White | White |
| Model | AMSE7024AC-VERA-18-230V | ESW-001 | FP10404US-WH+ | MAYIHNONuN | JIUHE7452L | 11273-CYFP | 17SEER-11K-230V |
| Size | not stated | not stated | 9000BTU, 208-230V, 17 SEER2 | not stated | 12000BTU, 230V, 17 SEER2 | not stated | not stated |
If you want external controller options, you can compare mysa smart thermostat mini split heat alternatives for your system.
Frequently asked questions
What is the most efficient SIMOE alternative available?
All listed alternatives share a 17 SEER2 efficiency rating. This metric indicates how much cooling output you get per unit of energy consumed. Higher SEER2 values generally mean lower operating costs over time. Since every option here matches the SIMOE unit at 17 SEER2, you should choose based on capacity, voltage, or specific features like smart controls rather than efficiency differences.
Do these mini splits require 230V power?
Yes, every unit in this list operates on 230V power. This is a critical installation requirement you must verify before purchasing. Standard household outlets usually provide 120V, so you will likely need a dedicated 230V circuit installed by a qualified electrician. This ensures the compressor and fan run safely and efficiently without tripping breakers.
Which model is best for small rooms?
The YITAHOME 12000 BTU and COSTWAY 9000 BTU models are ideal for smaller spaces. The YITAHOME offers Wi-Fi control for remote management, while the COSTWAY provides a more compact footprint. Both units deliver adequate cooling for modest square footage without the bulk of larger 18000 BTU systems. Check your room dimensions to ensure the BTU rating matches your space.
How wide are the indoor units?
Indoor unit widths range from 30.6 inches to 40.5 inches. The ROVSUN 11500 BTU model is the narrowest at 30.6 inches, while the LITHZEN 24000 BTU is the widest at 40.5 inches. The SIMOE and Rellytech models sit in the middle at 38 inches and 31.9 inches respectively. Measure your wall space carefully to ensure proper fit.
Are smart features included in these systems?
Smart control availability varies by brand. The YITAHOME and LITHZEN models explicitly list Wi-Fi connectivity in their attributes. The SIMOE unit is noted for full app control. Other models like the ROVSUN and COSTWAY do not mention smart features in their data. If remote management via a smartphone is a priority, verify the specific model's capabilities before buying.
What is the weight difference between models?
Indoor unit weights vary significantly based on capacity and build. The YITAHOME 12000 BTU is the lightest at 21.1 pounds, followed by the COSTWAY 9000 BTU at 24.4 pounds. Heavier units include the SIMOE at 88.5 pounds and the LITHZEN at 30 pounds. Lighter units are generally easier to mount, but heavier units may offer more robust construction.
Which unit covers the largest area?
The LITHZEN 24000 BTU model is designed for large areas up to 1,500 square feet. The SIMOE 18000 BTU covers up to 1,250 square feet. The Nexaro 12000 BTU is rated for 750 square feet. Smaller units like the COSTWAY 9000 BTU are intended for modest spaces. Always match the BTU output to your room size for optimal performance.