COSTWAY 9100 BTU Mini Split Alternatives: 6 Similar Picks Compared
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The costway 9100 btu mini split alternatives list helps you find units that match specific needs. The original model offers 19 SEER2 efficiency and 230V power for rooms up to 450 sq ft. You might want a different unit if you need more cooling capacity, a different voltage, or a larger coverage area. This guide compares 6 similar picks that share key specifications with the COSTWAY unit.
We selected these alternatives because their specs overlap with the original product. All listed models provide 230V power and high efficiency ratings. Some offer higher BTU outputs for larger spaces, while others focus on quiet operation or compact designs. Each option serves a distinct use case. You can choose based on your room size, power availability, and performance requirements. This comparison focuses strictly on published specifications to help you make an informed decision.
Comparing alternatives to the Costway
Rellytech 18000 BTU 230V Mini Split
The Rellytech 18000 BTU model doubles the cooling capacity of the Costway 9100. It targets large rooms that need significant power, whereas the Costway covers only 450 sq ft. Both units share 19 SEER2 efficiency and 230V power requirements. The Rellytech is much larger and heavier at 112 pounds compared to the Costway’s 17.6 pounds. You should choose this option if your space exceeds 450 sq ft and you have the necessary 230V wiring. It sacrifices compact size for raw cooling output.
Mountman 12000 BTU 230V Mini Split
The Mountman 12000 BTU unit offers more cooling power than the Costway 9100. It covers up to 750 sq ft, which is significantly larger than the Costway’s 450 sq ft limit. Like the Costway, it uses 230V power and achieves 19 SEER2 efficiency. The indoor unit is taller at 11.9 inches compared to the Costway’s 7.91 inches. You might prefer this model if you need to cool a medium-sized room. It provides a balance of higher capacity and similar energy efficiency without requiring 115V wiring.
Tehanld 12000 BTU 230V Mini Split
The Tehanld 12000 BTU Mini Split provides 33% more cooling than the Costway 9100. It covers 750 sq ft, making it suitable for larger spaces. Both units operate on 230V power and offer 19 SEER2 efficiency. The Tehanld unit weighs 77 pounds, which is heavier than the Costway’s 17.6 pounds. Its dimensions are also larger, with a height of 11.9 inches versus the Costway’s 7.91 inches. Pick this alternative if you have 230V power and need to cool a room larger than 450 sq ft efficiently.
Nexaro 12000BTU Mini Split, 19 SEER2
The Nexaro 12000BTU unit delivers more cooling capacity than the Costway 9100. It covers up to 750 sq ft, compared to the Costway’s 450 sq ft. Both share 19 SEER2 efficiency and 230V power requirements. The Nexaro is taller at 13 inches, while the Costway is 7.91 inches. It weighs 68 pounds, making it heavier than the Costway. This model is ideal for medium rooms where you need stronger heating and cooling. It offers the same energy efficiency but with greater coverage area and power output.
Garvee 9000 BTU 230V Mini Split
The Garvee 9000 BTU Mini Split is similar in cooling capacity to the Costway 9100. Both cover small rooms and use 230V power with 19 SEER2 efficiency. The Garvee unit is much wider and taller, measuring 33 inches wide and 21.4 inches tall. It weighs 77.2 pounds, significantly heavier than the Costway’s 17.6 pounds. You might choose this option if quiet operation and air quality are priorities. It offers comparable efficiency and capacity but with a different physical footprint and design for small spaces.
Mountman 12000 BTU 230V Mini Split
The second Mountman 12000 BTU unit offers more cooling than the Costway 9100. It covers 750 sq ft, while the Costway covers 450 sq ft. Both use 230V power and achieve 19 SEER2 efficiency. The Mountman unit is taller at 11.9 inches compared to the Costway’s 7.91 inches. It is designed for medium rooms where quiet operation is valued. You should pick this alternative if you need to cool a larger space. It provides higher capacity and similar energy efficiency, making it a solid choice for rooms beyond the Costway’s range.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | COSTWAY 9100 BTU Mini Split Best overall | small rooms under 450 sq ft | Check price of COSTWAY 9100 BTU Mini Split on Amazon |
| 2 | Rellytech 18000 BTU 230V Mini Split Also great | large rooms needing 18,000 BTU cooling | Check price of Rellytech 18000 BTU 230V Mini Split on Amazon |
| 3 | Mountman 12000 BTU 230V Mini Split Best budget | 230V powered medium rooms | Check price of Mountman 12000 BTU 230V Mini Split on Amazon |
| 4 | Tehanld 12000 BTU 230V Mini Split Also great | Medium rooms with 230V power | Check price of Tehanld 12000 BTU 230V Mini Split on Amazon |
| 5 | Nexaro 12000BTU Mini Split, 19 SEER2 Best premium | Medium rooms needing heating and cooling | Check price of Nexaro 12000BTU Mini Split, 19 SEER2 on Amazon |
| 6 | Garvee 9000 BTU 230V Mini Split Also great | small rooms needing quiet, clean air | Check price of Garvee 9000 BTU 230V Mini Split on Amazon |
| 7 | Mountman 12000 BTU 230V Mini Split | quiet cooling and heating in medium rooms | Check price of Mountman 12000 BTU 230V Mini Split on Amazon |
Our 7 picks
COSTWAY 9100 BTU Mini Split
Best for: small rooms under 450 sq ft
- Cooling Capacity
- 9,100 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 450 sq ft
- Heat Pump
- Heat Pump
- Mounting Type
- Wall Mount
View on Amazon: COSTWAY 9100 BTU Mini Split Affiliate link
The COSTWAY 9100 BTU Mini Split offers 19 SEER2 efficiency and 208-230V operation. It cools up to 450 sq ft with quiet 23 dB indoor performance. The unit includes 4D swing, self-cleaning, and extreme temp tolerance. It suits small rooms needing reliable, efficient climate control without complex smart features.
Pros
- 19 SEER2 cooling efficiency rating
- Ultra-quiet 23 dB indoor operation
- 4D swing airflow distribution
- Self-cleaning function for maintenance
Cons
- Lower 9100 BTU capacity than most competitors
- No smart app or Wi-Fi connectivity
- Indoor unit is 31.2 inches wide
Good fit if
- You need efficient cooling for a small room under 450 sq ft
- You require 208-230V electrical compatibility
- You prioritize quiet operation for bedrooms
Skip if
- You need to cool a large open space
- You want remote control via smartphone app
- You require higher than 9100 BTU capacity
Verdict: COSTWAY 9100 BTU Mini Split is a quiet, efficient option for small rooms. It fits buyers who need 208-230V power and do not require smart home integration.
Rellytech 18000 BTU 230V Mini Split
Best for: large rooms needing 18,000 BTU cooling
- Cooling Capacity
- 18,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 208-230V
- Coverage Area
- Up to 1,250 sq. ft.
- Heat Pump
- Heat Pump
- Dimensions
- 12.4 × 39.6 × 9.5 inches
View on Amazon: Rellytech 18000 BTU 230V Mini Split Affiliate link
This Rellytech unit offers 18,000 BTU cooling and heating for spaces up to 1,250 square feet. It runs on 208-230V power with a 19 SEER2 efficiency rating. The system includes four operational modes and four fan speeds. You get a 90-degree vertical swing for wide coverage. This model is designed for larger rooms or open areas that need robust climate control.
Pros
- 18,000 BTU cooling capacity
- 19 SEER2 energy efficiency
- 208-230V voltage operation
- Covers up to 1,250 sq. ft.
- Includes ECO mode for energy savings
Cons
- Larger 18,000 BTU capacity exceeds 9,000 BTU needs
- Requires 230V electrical connection
- Heavier 112-pound indoor unit
Good fit if
- You need cooling for a large room up to 1,250 sq. ft.
- You have a 230V electrical outlet available
- You want high efficiency with 19 SEER2 rating
Skip if
- You only need a 9,000 BTU unit
- Your home only has 115V outlets
- You prefer a lighter, more compact indoor unit
Verdict: Rellytech 18000 BTU 230V Mini Split is a high-capacity choice for large spaces. It fits buyers who need strong cooling power and have the necessary 230V wiring installed.
Mountman 12000 BTU 230V Mini Split
Best for: 230V powered medium rooms
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 208/230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 8.23 × 32.3 × 11.9 inches
View on Amazon: Mountman 12000 BTU 230V Mini Split Affiliate link
This Mountman unit delivers 12,000 BTU of cooling and heating power for spaces up to 750 square feet. It runs on 208/230V and achieves a 19 SEER2 efficiency rating. The inverter system supports four modes and includes a remote control with a 24-hour timer. Sleep mode operates at 26dB. It uses R32 refrigerant and features self-cleaning functions for low maintenance.
Pros
- 12,000 BTU cooling and heating capacity
- 19 SEER2 energy efficiency rating
- 26dB ultra-quiet sleep mode operation
- 208/230V electrical requirement
- Covers areas up to 750 sq ft
Cons
- Requires 208/230V power instead of standard 110/120V
- No Wi-Fi or smart app control listed
- Indoor unit is 32.3 inches wide
Good fit if
- You have a 208/230V circuit available
- You need quiet operation for a bedroom
- You want high efficiency for a medium room
Skip if
- You only have standard 110/120V outlets
- You need smart app integration
- You are cooling a space over 750 sq ft
Verdict: Mountman 12000 BTU Mini Split is a solid choice for homeowners with 208/230V wiring who prioritize efficiency and quiet sleep modes over smart features.
Tehanld 12000 BTU 230V Mini Split
Best for: Medium rooms with 230V power
- Cooling Capacity
- 12,000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 750 sq. ft.
- Heat Pump
- 1-ton heat pump
- Dimensions
- 8.3 × 32.3 × 11.9 inches
View on Amazon: Tehanld 12000 BTU 230V Mini Split Affiliate link
The Tehanld 12000 BTU mini split offers 19 SEER2 efficiency on 230V power. It cools and heats spaces up to 750 sq. ft. using R32 refrigerant. You get five operation modes and four fan speeds. The unit runs quietly with sleep and timer settings. This model fits well if you need a reliable heat pump for medium-sized rooms.
Pros
- 19 SEER2 energy efficiency rating
- 12,000 BTU cooling and 1-ton heating capacity
- Uses eco-friendly R32 refrigerant
- Five operation modes including Cool, Heat, and Dry
Cons
- Requires 230V electrical connection
- Ships in two separate packages
- Professional installation is mandatory
Good fit if
- You need a 12,000 BTU unit for a 750 sq. ft. space
- You have a 230V outlet available for installation
- You want quiet operation with sleep mode for bedrooms
Skip if
- You only have a 115V power source
- You need a unit larger than 12,000 BTU
- You prefer a single-package delivery experience
Verdict: Tehanld 12000 BTU 230V Mini Split provides solid 19 SEER2 performance for medium rooms. It suits you if you have 230V power and need efficient heating and cooling.
Nexaro 12000BTU Mini Split, 19 SEER2
Best for: Medium rooms needing heating and cooling
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat pump
- Dimensions
- 8.25 × 32.3 × 13 inches
View on Amazon: Nexaro 12000BTU Mini Split, 19 SEER2 Affiliate link
The Nexaro 12000BTU Mini Split offers 19 SEER2 efficiency and 12,000 BTU cooling power. It covers up to 750 square feet using R32 refrigerant. The unit includes a heat pump for year-round comfort. You get five operating modes and four fan speeds. It runs on 230V power. This model suits you if you need reliable climate control for medium-sized rooms.
Pros
- 19 SEER2 efficiency rating for lower energy use
- 12,000 BTU cooling capacity for rooms up to 750 sq ft
- Built-in heat pump for heating and cooling
- Five operation modes including cooling, heating, and dry
- Uses eco-friendly R32 refrigerant
Cons
- Requires 230V electrical connection
- Heavier than some competitors at 68 pounds
- Larger indoor unit dimensions at 32.3 inches wide
Good fit if
- You need a heat pump for winter heating
- You have a 230V outlet available
- You want to cool a room up to 750 square feet
Skip if
- You only have a standard 115V outlet
- You need to cool a space larger than 750 square feet
- You prefer a more compact indoor unit
Verdict: Nexaro 12000BTU Mini Split AC provides strong efficiency and heating capability for medium rooms. It fits buyers who have 230V power and need a heat pump for year-round use.
Garvee 9000 BTU 230V Mini Split
Best for: small rooms needing quiet, clean air
- Cooling Capacity
- 9000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 230 V
- Coverage Area
- up to 450 sq ft
- Heat Pump
- 0.75Ton Heat Pump
- Dimensions
- 33 × 13.4 × 21.4 inches
View on Amazon: Garvee 9000 BTU 230V Mini Split Affiliate link
The Garvee 9000 BTU Mini Split delivers 19 SEER2 efficiency on 230V power. It cools and heats spaces up to 450 sq ft. You get six modes, including dry and eco settings. The unit operates quietly at 23 dB. It also features negative-ion air purification and PM2.5 filtration. This model suits small rooms needing reliable, energy-efficient climate control.
Pros
- 19 SEER2 energy efficiency rating
- Ultra-quiet 23 dB operation
- Negative-ion and PM2.5 air filtration
- Operates down to -4°F
Cons
- Lower 9000 BTU capacity than 12000 BTU competitors
- Heavier 77.2 lb indoor unit
- 230V requirement limits some installations
Good fit if
- You need quiet operation for a bedroom
- You want air purification features
- You have a 230V circuit available
Skip if
- You need to cool a large open space
- You only have a 115V outlet
- You require a lighter indoor unit
Verdict: Garvee 9000 BTU 19 SEER2 Mini Split is a solid pick for small rooms where quiet operation and air quality matter more than raw cooling power.
Mountman 12000 BTU 230V Mini Split
Best for: quiet cooling and heating in medium rooms
- Cooling Capacity
- 12000 BTU
- Efficiency Rating
- 19 SEER2
- Voltage
- 230V
- Coverage Area
- Up to 750 sq ft
- Heat Pump
- Heat Pump
- Dimensions
- 8.23 × 32.3 × 11.9 inches
View on Amazon: Mountman 12000 BTU 230V Mini Split Affiliate link
The Mountman 12000 BTU mini split delivers 19 SEER2 efficiency on a 230V circuit, covering up to 750 square feet. It uses R32 refrigerant and inverter technology for steady cooling and heating. The unit includes a remote, four fan speeds, and specialized modes like ECO and Turbo. Its 26dB sleep mode supports quiet operation. This model suits you if you need reliable all-season climate control for medium-sized rooms.
Pros
- 19 SEER2 efficiency rating for energy savings
- Covers up to 750 square feet
- Includes 24-hour timer and remote control
- Features intelligent self-cleaning and auto defrost
- Operates at 26dB in sleep mode
Cons
- Requires 230V electrical connection
- Lacks Wi-Fi or smart app connectivity
- Indoor unit width is 32.3 inches
Good fit if
- You have a 230V power source available
- You want a quiet unit for bedrooms
- You need efficient heating and cooling
Skip if
- You only have 115V outlets
- You require smart app integration
- You need coverage for larger spaces
Verdict: Mountman 12000 BTU Mini Split offers strong efficiency and quiet operation for rooms up to 750 square feet. It fits you best if you have the right voltage and value low noise levels.
Specifications side by side
| Spec | COSTWAY 9100 BTU Mini Split | Rellytech 18000 BTU 230V Mini Split | Mountman 12000 BTU 230V Mini Split | Tehanld 12000 BTU 230V Mini Split | Nexaro 12000BTU Mini Split, 19 SEER2 | Garvee 9000 BTU 230V Mini Split | Mountman 12000 BTU 230V Mini Split |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 9,100 BTU | 18,000 BTU | 12,000 BTU | 12,000 BTU | 12000 BTU | 9000 BTU | 12000 BTU |
| Efficiency Rating | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 | 19 SEER2 |
| Voltage | 208-230V | 208-230V | 208/230V | 230V | 230V | 230 V | 230V |
| Coverage Area | Up to 450 sq ft | Up to 1,250 sq. ft. | Up to 750 sq ft | Up to 750 sq. ft. | Up to 750 sq ft | up to 450 sq ft | Up to 750 sq ft |
| Heat Pump | Heat Pump | Heat Pump | Heat Pump | 1-ton heat pump | Heat pump | 0.75Ton Heat Pump | Heat Pump |
| Mounting Type | Wall Mount | not stated | not stated | not stated | not stated | not stated | not stated |
| Dimensions | 11.5 × 31.2 × 7.91 inches | 12.4 × 39.6 × 9.5 inches | 8.23 × 32.3 × 11.9 inches | 8.3 × 32.3 × 11.9 inches | 8.25 × 32.3 × 13 inches | 33 × 13.4 × 21.4 inches | 8.23 × 32.3 × 11.9 inches |
| Weight | 17.6 pounds | 112 pounds | not stated | 77 pounds | 68 pounds | 77.2 pounds | not stated |
| Size | 9100BTU, 208-230V, 19 SEER2 | 18000BTU,230V,19 SEER2 | 12000-208/230 | 12000BTU-230V-19SEER2 | 12000BTU, 230V, 19 SEER2 | 9K-230V-19 SEER2-L Panel | 12000 | 230 |
| Color | White | White | not stated | White | White | White | not stated |
| Model | 11090-CYFP | CE0-1 | 12000BTU-230V | T-MINI SPLIT AC-2 | NexaroS180 | CCKmnYX-u6vfgSqC3rowdQf03 | MM 12000BTU-230V |
Frequently asked questions
Which alternative offers the highest cooling capacity?
The Rellytech 18000 BTU Mini Split provides the highest capacity in this list. It delivers 18,000 BTUs of cooling power. This makes it suitable for large rooms that exceed the 450 sq ft coverage of the Costway. It shares the same 19 SEER2 efficiency rating and 230V voltage requirement as the original model.
How do the dimensions of the Garvee unit compare to standard wall mounts?
The Garvee 9000 BTU Mini Split features a unique L-panel design. Its width is 13.4 inches, while its height reaches 21.4 inches. This vertical orientation differs from the wider, shorter profile of the Costway, which measures 31.2 inches wide and 7.91 inches high. You should verify your wall space before installation.
Are there other options for medium-sized rooms around 750 sq ft?
Yes, several models support coverage areas up to 750 sq ft. The Mountman, Tehanld, and Nexaro units all offer 12,000 BTUs of cooling. They all require 230V power and provide 19 SEER2 efficiency. These picks are ideal if you need more capacity than the Costway but less than the 18,000 BTU Rellytech.
Is the voltage requirement the same for all listed alternatives?
Yes, all seven products in this list require 230V power. The Costway 9100 BTU operates on 208-230V. The other units, including the Rellytech, Mountman, Tehanld, Nexaro, and Garvee models, also specify 230V compatibility. You must ensure your home has the correct electrical wiring before installing any of these mini split systems.
Which unit is the lightest to handle during installation?
The Costway 9100 BTU Mini Split is the lightest option at 17.6 pounds. The Nexaro model weighs 68 pounds, and the Tehanld weighs 77 pounds. The Garvee unit is heavier at 77.2 pounds. The Rellytech is the heaviest at 112 pounds due to its larger 18,000 BTU capacity. Consider weight if you are mounting the unit yourself.
Do all these models provide heating capabilities?
The product data identifies the Nexaro, Mountman, and Tehanld units as heat pumps or suitable for heating. The Costway and Garvee are described primarily for cooling or quiet operation. The Rellytech is noted for strong cooling power. You should check the specific mode settings in the manual to confirm heating functionality for each model.
What is the difference between the two Mountman models listed?
Both Mountman units offer 12,000 BTUs, 230V power, and 19 SEER2 efficiency. The first model, labeled Best budget, lists a coverage area of 750 sq ft. The second Mountman option, labeled Also great, highlights quiet operation for rooms up to 750 sq ft. Their physical dimensions and model numbers are identical in the provided data.