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Looking for mrcool comfort made simple mrcool DIY 18k multi zone alternatives? The original MrCool DIY 18k system offers efficient heating and cooling for 750-900 square feet across three zones. It features a 23.9 SEER2 rating and 10 HSPF2 efficiency. The unit includes 25ft line sets and allows DIY installation without special tools. You get smart control via WiFi and voice assistants. This makes it ideal for managing multiple rooms independently.
You might want different specs for your space. Some buyers need higher capacity for larger areas. Others require single-zone setups to save on complexity. Voltage requirements also vary between 115V and 230V circuits. The alternatives listed here were chosen because their specifications overlap with the original. We compared SEER2 ratings, voltage compatibility, and coverage areas. You will find options with higher BTU output or different mounting needs. Each pick shares core traits like inverter technology and heating modes. This ensures you can find a unit that fits your electrical setup and room size.
How these picks differ from MrCool
MrCool 36k BTU 115V Mini Split
This MrCool model doubles the cooling capacity to 36k BTU, making it suitable for larger spaces than the original 18k unit. It retains the DIY Quick Connect technology and smart home integration you might expect from the brand. However, it weighs 180 pounds and measures 40 inches wide, which is bulkier than the original 175-pound, 35-inch wide system. You should choose this if you need higher output for a single large room or open area. It sacrifices the multi-zone flexibility of the original for raw power on a standard 115V circuit.
Rellytech 18000 BTU 230V Mini Split
The Rellytech unit covers 1,250 square feet, offering more coverage than the original 750-900 square foot range. It operates on 230V power, which differs from the original’s likely 115V setup, requiring different wiring. With a 19 SEER2 rating, it is slightly less efficient than the original’s 23.9 SEER2. It weighs only 112 pounds, making it significantly lighter and easier to handle than the 175-pound original. This pick works well if you need a single-room solution with strong efficiency. You give up the multi-zone capability and the higher efficiency rating of the MrCool system.
Albott 18k BTU 230V Mini Split
This Albott model also covers 1,250 square feet and runs on 208-230V power. It features a 19 SEER2 rating, which is lower than the original’s 23.9 SEER2. The unit includes self-cleaning maintenance, a feature not explicitly listed for the original. It weighs 151 pounds, which is lighter than the 175-pound original. The indoor unit is narrower at 37.8 inches long but slightly taller. Choose this if you have 208-230V wiring and prioritize low maintenance. You lose the multi-zone flexibility and the higher energy efficiency of the MrCool DIY system.
COSTWAY 24000 BTU 230V Mini Split
The COSTWAY unit provides 24,000 BTU of capacity, which is higher than the original 18k BTU. It operates on 230V power and has an 18.5 SEER rating, which is lower than the original’s 23.9 SEER2. It weighs only 68 pounds, making it much lighter than the 175-pound original. This makes installation physically easier. It is designed for larger rooms where capacity matters more than peak efficiency. You should pick this if you need strong heating and cooling for a big space. You give up the multi-zone control and the superior energy efficiency of the MrCool system.
Mountman 24000 BTU 19 SEER2 Mini Split
This Mountman unit offers 24,000 BTU with a 19 SEER2 rating. It runs on 208-230V power, differing from the original’s likely 115V setup. It weighs no more than the original’s 175 pounds, though exact weight is not listed. The indoor unit is 42.8 inches wide, which is wider than the original’s 35 inches. It is designed for large rooms with dedicated high-voltage circuits. Choose this if you need high capacity and quiet operation. You sacrifice the multi-zone flexibility and the higher 23.9 SEER2 efficiency rating found in the MrCool DIY system.
Senville LETO 9000 BTU 115V
The Senville LETO is a 9,000 BTU unit, which is half the capacity of the original 18k BTU system. It runs on 120V power, similar to the original’s likely voltage. It weighs only 25 pounds, making it extremely lightweight compared to the 175-pound original. It features quiet operation and smart compatibility with Alexa. This is best for small rooms where high capacity is not needed. You give up the multi-zone capability and the higher cooling power of the MrCool system. Pick this if you need a simple, quiet solution for a single small space.
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | MrCool DIY 18k Multi-Zone Mini Split Best overall | cooling three separate zones with high efficiency | |
| 2 | MrCool 36k BTU 115V Mini Split Best premium | large rooms on 115V power | |
| 3 | Rellytech 18000 BTU 230V Mini Split Best budget | Single-room 230V cooling and heating | |
| 4 | Albott 18k BTU 230V Mini Split Also great | 1,250 sq. ft. spaces with 208-230V power | |
| 5 | COSTWAY 24000 BTU 230V Mini Split Also great | large rooms needing high capacity and warranty coverage | |
| 6 | Mountman 24000 BTU 19 SEER2 Mini Split Best 208-230v | large rooms with 208-230V power | |
| 7 | Senville LETO 9000 BTU 115V Best quiet operation | small rooms needing quiet, smart cooling |
MrCool DIY 18k Multi-Zone Mini Split
Best for: cooling three separate zones with high efficiency
- Cooling Capacity
- 18k BTU
- Coverage Area
- 750-900 sq ft
- SEER2 Rating
- 23.9
- Number of Zones
- 3 Zone
- Smart Compatibility
- WiFi, Alexa, Google Assistant, app
- Color
- White
This MrCool DIY unit is an 18,000 BTU multi-zone system designed for 750 to 900 square feet. It includes three 6,000 BTU indoor zones and 25-foot line sets. The system features a 23.9 SEER2 rating and 10 HSPF2 efficiency. It uses Quick Connect technology for DIY installation. WiFi control and voice assistant compatibility are included for remote management.
- High 23.9 SEER2 cooling efficiency rating
- Includes three 6,000 BTU zones for multi-room control
- Quick Connect technology allows DIY installation without special tools
- WiFi capable with Alexa and Google Assistant support
- 18,000 BTU capacity is lower than the 24,000 and 36,000 BTU options on this list
- 175-pound total weight is substantial for handling during installation
- You need to cool and heat three separate rooms from a single outdoor unit
- You want to install the system yourself using Quick Connect technology
- You prioritize high energy efficiency with a 23.9 SEER2 rating
- You require a single zone system without multi-room distribution
- You need more than 18,000 BTUs for a larger space
- You prefer professional installation only and want to avoid handling a 175-pound unit
Verdict: MrCool DIY 18k 3-Zone Mini Split is a high-efficiency multi-zone solution for homeowners who want to manage three rooms independently. It fits buyers who value DIY installation and smart home integration over raw cooling capacity.
MrCool 36k BTU 115V Mini Split
Best for: large rooms on 115V power
- Cooling Capacity
- 36,000 BTU
- Coverage Area
- Up to 1,550 sq ft
- Voltage
- 115V
- Smart Compatibility
- Google Assistant, Amazon Alexa
- Room
- Offices
- Operating Modes
- Heating
This MrCool DIY unit delivers 36,000 BTUs of cooling and heating for spaces up to 1,550 square feet. It runs on 115V power and weighs 180 pounds. The 5th Gen design includes pre-charged 25-foot line sets for DIY installation. You get smart control via Google Assistant or Alexa. This system suits large rooms or offices needing strong airflow without complex wiring.
- 36,000 BTU capacity for large areas
- 115V electrical compatibility
- Covers up to 1,550 square feet
- Smart control with voice assistants
- Heavier 180-pound build than smaller models
- Lower 115V voltage limits compatibility with some circuits
- You need 36,000 BTUs for a large room
- You have 115V outlets available
- You want DIY installation with pre-charged lines
- You require 208-230V power only
- You need a lighter unit under 100 pounds
- You are cooling a space under 1,000 square feet
Verdict: MrCool 36k BTU 115V Mini Split fits large spaces needing high output on standard 115V circuits. It suits DIYers who value smart features and easy setup over compact weight.
Rellytech 18000 BTU 230V Mini Split
Best for: Single-room 230V cooling and heating
- Cooling Capacity
- 18,000 BTU
- Coverage Area
- up to 1,250 sq. ft.
- SEER2 Rating
- 19
- Voltage
- 208-230V
- Operating Modes
- cooling, heating, fan, dry, ECO
- Features
- Inverter
The Rellytech 18,000 BTU mini split delivers 19 SEER2 efficiency and 230V power for spaces up to 1,250 square feet. It includes four fan speeds and a 90-degree vertical swing for targeted airflow. This unit operates in heating and cooling modes with an ECO setting to manage energy use. It suits you if you need a straightforward, energy-efficient solution for a single room or office area.
- 19 SEER2 rating for strong energy efficiency
- 18,000 BTU cooling and 18,400 BTU heating capacity
- 230V voltage compatibility for standard circuits
- 90-degree vertical swing for wide airflow coverage
- 112-pound weight makes it heavier than lighter alternatives
- 1,250 square foot coverage is smaller than 24k BTU models
- Four fan speeds offer fewer airflow settings than premium units
- You need a 230V system for a 1,250 square foot room
- You want high energy efficiency with a 19 SEER2 rating
- You prefer a single-zone unit with basic mode controls
- You require multi-zone capability for several rooms
- You need a 24,000 BTU unit for larger spaces
- You want a 115V plug-in model for easy installation
Verdict: Rellytech 18k BTU 19 SEER2 Mini Split fits you if you need a single-room 230V unit with strong efficiency. It covers 1,250 square feet well but lacks the power for larger open areas.
Albott 18k BTU 230V Mini Split
Best for: 1,250 sq. ft. spaces with 208-230V power
- Cooling Capacity
- 18,000 BTU
- Coverage Area
- Up to 1,250 sq ft
- SEER2 Rating
- 19
- Voltage
- 208-230V
- Operating Modes
- Cooling, heating, dehumidifying, fan
- Room
- Offices
The Albott SAC011 is a 18,000 BTU ductless mini split heat pump designed for spaces up to 1,250 square feet. It operates on 208-230V power and carries a 19 SEER2 rating. You get cooling, heating, dehumidifying, and fan modes. The unit includes a 24-hour timer and sleep mode. It also features self-cleaning technology to reduce dust buildup. This model suits home offices or similar rooms needing reliable climate control.
- 18,000 BTU capacity for up to 1,250 sq. ft.
- 19 SEER2 energy efficiency rating
- 208-230V voltage compatibility
- Self-cleaning function at 135°F
- Operates in temperatures from -4°F to 140°F
- 151-pound weight is heavier than lighter 9,000 BTU units
- 19 SEER2 is lower than the 20.5 SEER2 option available in variations
- Standard 115V DIY options are not included in this specific SKU
- You need 18,000 BTU cooling for a 1,250 sq. ft. space
- You have a 208-230V electrical supply
- You want a heat pump with self-cleaning features
- You require a 9,000 BTU unit for a smaller room
- You only have 115V outlets available
- You need a DIY installation series model
Verdict: Albott 18k BTU 208-230V Mini Split provides steady heating and cooling for medium-sized offices or rooms with 208-230V wiring. It is a solid choice if you prioritize self-cleaning maintenance and robust voltage compatibility over the highest SEER2 rating.
COSTWAY 24000 BTU 230V Mini Split
Best for: large rooms needing high capacity and warranty coverage
- Cooling Capacity
- 24000 BTU
- Coverage Area
- up to 1500 Sq. Ft
- SEER2 Rating
- 18.5 SEER2
- Voltage
- 208-230V
- Smart Compatibility
- remote control
- Operating Modes
- auto, cool, dry, heat, fan
This 24,000 BTU wall-mounted unit offers 18.5 SEER2 efficiency on 208-230V power. It includes heating, five working modes, and four fan speeds. The system features inverter technology for steady temperature control and self-cleaning functions. It weighs 68 pounds and measures 44.5 inches wide. This model suits larger spaces requiring robust cooling and heating capacity with reliable inverter performance.
- 18.5 SEER2 energy efficiency rating
- 24,000 BTU cooling and heating capacity
- Inverter technology for stable operation
- Self-cleaning and auto-defrost functions
- 5-year parts and 8-year compressor warranty
- Lower SEER2 rating of 18.5 compared to 19 or 20.5 options on this list
- Heavier weight at 68 pounds versus lighter competitors
- Larger width of 44.5 inches requires more wall space
- You need high-capacity 24,000 BTU cooling for a large room
- You prefer a system with an 8-year compressor warranty
- You have a 208-230V electrical setup available
- You require the highest efficiency rating of 20.5 SEER2 or higher
- You have limited wall space for a 44.5-inch wide unit
- You are installing in a space with only 115V power
Verdict: COSTWAY 24000 BTU Mini Split delivers strong heating and cooling for larger areas with a solid warranty. It fits users prioritizing capacity and long-term parts coverage over peak energy efficiency.
Mountman 24000 BTU 19 SEER2 Mini Split
Best for: large rooms with 208-230V power
- Cooling Capacity
- 24,000 BTU
- Coverage Area
- Up to 1,500 sq ft
- SEER2 Rating
- 19
- Voltage
- 208/230V
- Smart Compatibility
- Remote control
- Operating Modes
- Cool, Heat, Dry, Fan
This Mountman unit delivers 24,000 BTUs of cooling and heating for spaces up to 750 square feet. It operates on 208-230V power with a 19 SEER2 rating for efficient energy use. You get four fan speeds, specialized modes like Sleep and Turbo, and a quiet 26dB operation. The system includes self-cleaning features and an R32 refrigerant for reliable year-round comfort.
- High 24,000 BTU capacity for larger rooms
- 19 SEER2 energy efficiency rating
- 208-230V voltage compatibility
- Ultra-quiet 26dB Sleep Mode operation
- Intelligent self-cleaning and defrost functions
- Larger physical footprint at 42.8 inches wide
- Higher power requirement limits 115V installations
- Standard remote without built-in Wi-Fi
- You need 24,000 BTUs for a large room
- You have a 208-230V electrical circuit
- You want quiet operation for bedrooms
- You only have standard 115V outlets
- You need a compact unit under 40 inches
- You require built-in smart home connectivity
Verdict: Mountman 24k BTU 208-230V Mini Split fits large rooms with dedicated 208-230V circuits where high capacity and quiet operation matter more than smart features.
Senville LETO 9000 BTU 115V
Best for: small rooms needing quiet, smart cooling
- Cooling Capacity
- 9000 BTU (0.75 Ton)
- Voltage
- 110/120V
- Smart Compatibility
- Alexa, app, remote control
- Operating Modes
- AC, heat pump, dehumidifier, fan
- Features
- Inverter, Quiet Operation
- Control Method
- Voice Control
This Senville LETO unit delivers 9,000 BTU of cooling and heating via a 120V wall-mounted design. It features DC inverter technology for precise temperature control and operates quietly. You can control it through voice commands with Alexa or the app. The package includes a 16ft line set and remote. It is a solid choice for small rooms or bedrooms where low noise and smart integration matter more than raw power.
- Quiet operation for comfortable indoor environments
- Works with Alexa for voice control
- DC inverter technology for energy efficiency
- Includes 16ft line set and remote
- 5-year parts and compressor warranty
- Lower 9,000 BTU capacity compared to 18k or 24k options
- Heavier 25-pound indoor unit than compact alternatives
- Requires professional installation, not DIY
- You need quiet cooling for a bedroom
- You want Alexa voice control integration
- You are cooling a small 150-250 sq ft space
- You need high output for large rooms
- You want a DIY installation kit
- You prefer 18k BTU or higher capacity
Verdict: Senville LETO 9000 BTU Mini Split suits small rooms where quiet performance and smart control matter more than high capacity.
Specifications side by side
| Spec | MrCool DIY 18k Multi-Zone Mini Split | MrCool 36k BTU 115V Mini Split | Rellytech 18000 BTU 230V Mini Split | Albott 18k BTU 230V Mini Split | COSTWAY 24000 BTU 230V Mini Split | Mountman 24000 BTU 19 SEER2 Mini Split | Senville LETO 9000 BTU 115V |
|---|---|---|---|---|---|---|---|
| Cooling Capacity | 18k BTU | 36,000 BTU | 18,000 BTU | 18,000 BTU | 24000 BTU | 24,000 BTU | 9000 BTU (0.75 Ton) |
| Coverage Area | 750-900 sq ft | Up to 1,550 sq ft | up to 1,250 sq. ft. | Up to 1,250 sq ft | up to 1500 Sq. Ft | Up to 1,500 sq ft | – |
| SEER2 Rating | 23.9 | – | 19 | 19 | 18.5 SEER2 | 19 | – |
| Voltage | – | 115V | 208-230V | 208-230V | 208-230V | 208/230V | 110/120V |
| Number of Zones | 3 Zone | – | – | – | – | – | – |
| Smart Compatibility | WiFi, Alexa, Google Assistant, app | Google Assistant, Amazon Alexa | – | – | remote control | Remote control | Alexa, app, remote control |
| Operating Modes | – | – | cooling, heating, fan, dry, ECO | Cooling, heating, dehumidifying, fan | auto, cool, dry, heat, fan | Cool, Heat, Dry, Fan | AC, heat pump, dehumidifier, fan |
| Room | – | Offices | – | Offices | – | – | – |
| Features | – | – | Inverter | Inverter | Inverter | Inverter | Inverter, Quiet Operation |
| Control Method | – | – | – | – | – | – | Voice Control |
| Room Type | – | Office | – | Office | – | – | – |
| Color | White | White | White | White | White | White | White |
| Operating Mode | – | Heater | – | Heater | Heater | Heater | Heater |
| SEER Rating | – | – | 19 SEER2 | 19 SEER2 | – | 19 SEER2 | – |
| Mounting Type | – | Wall-Mounted | – | – | Wall-Mounted | – | Wall-Mounted |
| Use | – | Home Office | – | Home Office | – | – | – |
| Dimensions | 13.5 × 35 × 26.5 inches | 10 × 40 × 14 inches | 9.02 × 40.4 × 12.6 inches | 37.8 × 8.74 × 12.4 inches | 9 × 44.5 × 13 inches | 12.3 × 42.8 × 15.3 inches | 9 × 37 × 12 inches |
| Weight | 175 pounds | 180 pounds | 112 pounds | 151 pounds | 68 pounds | – | 25 pounds |
| Model | DIYM318HPW00D | DIY-36-HP-WM-230D25O | CE0-1 | SAC011 | 10153-CYJV | – | SENL-09CD-16 |
| Size | – | 5th gen | 18000BTU,230V,19 SEER2 | 19 SEER2, 18,000BTU 208-230V | 24000BTU, 208-230V, 18.5 SEER | – | 9000 BTU 110/120V |
Frequently asked questions
Can I install these mini splits myself without professional help?
Yes, several models support DIY installation. The MrCool DIY units use Quick Connect technology for easy setup. This feature allows homeowners to manage the wiring and connection process independently. You do not need a certified HVAC technician to complete the installation if you follow the manufacturer guidelines carefully.
Which unit is best for cooling three separate rooms?
The MrCool DIY 18k Multi-Zone Mini Split is designed for this purpose. It allows you to manage three rooms independently. This setup fits buyers who value multi-zone control and smart home integration. It provides high efficiency for managing temperature in multiple distinct areas simultaneously.
Do I need a 230V circuit for these systems?
It depends on the specific model you choose. The Rellytech, Albott, and Mountman units require 230V or 208-230V power. However, the MrCool 36k BTU and Senville LETO models operate on standard 115V or 120V circuits. Check your home wiring before purchasing to ensure compatibility.
What is the quietest option for a bedroom?
The Senville LETO 9000 BTU Mini Split is noted for quiet operation. It suits small rooms where low noise levels are a priority. The unit includes voice control compatibility and inverter technology. This makes it ideal for spaces where silent performance matters more than high cooling capacity.
How much space does the indoor unit take up?
Dimensions vary by model. The MrCool 36k unit measures 40 inches wide, while the Senville model is 37 inches wide. The Mountman unit is 42.8 inches wide. Consider your wall space when selecting a model. Smaller units like the Senville may fit better in compact areas.
Which system offers the highest energy efficiency rating?
The MrCool DIY 18k Multi-Zone system has a 23.9 SEER2 rating. The Albott and Mountman units offer 19 SEER2 ratings. Higher SEER2 numbers indicate better energy efficiency. You can expect lower energy consumption with the MrCool DIY model compared to the 19 SEER2 alternatives.
Can I control these units with my smartphone?
Yes, smart features are available on several models. The MrCool DIY systems include smart home integration. The Senville LETO model supports voice control via Alexa. You can manage temperature settings remotely. This convenience allows you to adjust the climate without needing a physical remote nearby.
Which unit is lightest for wall mounting?
The Senville LETO 9000 BTU unit is the lightest at 25 pounds. The Mountman unit weighs 68 pounds. The MrCool DIY 18k Multi-Zone weighs 175 pounds. Consider the weight when planning your installation. Lighter units are easier to handle and mount on standard wall brackets.