MRCOOL mini split systems have gained popularity among homeowners seeking affordable, energy-efficient cooling solutions without the complexity of traditional HVAC installations. These ductless systems offer the perfect balance of performance, ease of installation, and cost-effectiveness for residential applications. With various BTU capacities and SEER ratings available, MRCOOL provides options suitable for different room sizes and energy efficiency requirements.
The brand’s DIY-friendly approach eliminates the need for professional refrigerant handling, making these systems particularly attractive for budget-conscious consumers. From compact 9,000 BTU units perfect for small rooms to powerful 36,000 BTU systems capable of cooling large spaces, MRCOOL offers comprehensive solutions for modern home comfort needs.
| Model | BTU Capacity | SEER Rating | Coverage Area | Key Feature |
|---|---|---|---|---|
| MRCOOL DIY 24K 4th Gen | 24,000 | 20.5 | 1,000 sq ft | Energy Star Certified |
| MRCOOL 9K Advantage | 9,000 | Not specified | 375 sq ft | 115V Operation |
| MRCOOL DIY 24K with Cover | 24,000 | 20.5 | 1,000 sq ft | Line Set Cover Included |
| MRCOOL DIY 36K 3rd Gen | 36,000 | 16 | Large spaces | WiFi Control |
| Daikin Entra 24K | 24,000 | 18 | 1,500 sq ft | R32 Refrigerant |
MRCOOL DIY 24K BTU 4th Generation Energy Star System
The MRCOOL DIY 24K BTU 4th Generation represents the pinnacle of the company’s ductless mini split technology. This system achieves an impressive 20.5 SEER rating while maintaining Energy Star certification, making it one of the most efficient options in the MRCOOL lineup. The 10.5 HSPF rating ensures excellent heating performance during colder months.
This fourth-generation model incorporates advanced inverter technology that provides precise temperature control while minimizing energy consumption. The system’s variable speed compressor adjusts output based on actual cooling demands, reducing unnecessary energy usage and extending equipment lifespan. The Energy Star certification validates its superior efficiency compared to standard models.
Installation remains straightforward with MRCOOL’s signature pre-charged refrigerant lines and quick-connect fittings. The system includes all necessary mounting hardware and detailed instructions, making it accessible for motivated DIY enthusiasts. Professional installation remains an option for those preferring expert setup.
MRCOOL 9,000 BTU Advantage Series Mini Split
The MRCOOL 9,000 BTU Advantage Series offers an entry-level solution for smaller spaces requiring reliable climate control. Operating on standard 115-volt household current, this system eliminates the need for special electrical installations common with larger units. The compact design makes it ideal for bedrooms, offices, or small living areas up to 375 square feet.
This model combines both heating and cooling capabilities in a single package, providing year-round comfort regardless of seasonal changes. The heat pump functionality ensures efficient operation even during mild winter conditions, making it a versatile choice for moderate climates. The inverter technology provides consistent temperature maintenance while reducing energy costs.
Unlike the DIY models, this system requires professional installation by an HVAC technician. This requirement ensures proper refrigerant handling and system commissioning, which can be advantageous for homeowners preferring professional setup and warranty coverage. The system includes all necessary components for complete installation.
MRCOOL DIY 24K BTU with Line Set Cover
This enhanced version of the popular MRCOOL DIY 24K BTU system includes additional accessories for improved aesthetics and protection. The included line set cover provides weather protection for outdoor refrigerant lines while enhancing the overall appearance of the installation. The system maintains the same impressive 20.5 SEER2 efficiency rating as other fourth-generation models.
The variable speed DC inverter compressor technology ensures optimal energy efficiency across all operating conditions. This system can effectively heat and cool spaces up to 1,000 square feet, making it suitable for large bedrooms, living rooms, or open-plan areas. The precise temperature control eliminates uncomfortable temperature swings common with traditional systems.
Installation benefits from MRCOOL’s proven DIY-friendly design with pre-charged R-410a refrigerant in the 25-foot quick-connect line set. The system requires no special tools, equipment, or HVAC training for basic installation. The included one-year labor warranty provides additional peace of mind for DIY installations.
MRCOOL DIY 36K BTU 3rd Generation System
The MRCOOL DIY 36K BTU 3rd Generation provides maximum cooling capacity for larger residential applications. With 16 SEER and 8.90 HSPF ratings, this system delivers solid efficiency while handling substantial cooling loads. The higher BTU capacity makes it suitable for large living areas, open floor plans, or multiple connected rooms.
This model features the innovative SmartHVAC app for comprehensive WiFi control capabilities. The system integrates seamlessly with Alexa and Google Assistant, enabling voice control functionality. Remote monitoring and control through smartphones provide convenience and energy management opportunities, allowing users to adjust settings from anywhere with internet connectivity.
The third-generation design maintains MRCOOL’s commitment to easy DIY installation with pre-charged R-410A refrigerant and 25-foot quick-connect lines. The system includes all necessary components for complete installation without requiring specialized HVAC tools or training. The 230-volt electrical requirement may necessitate electrical upgrades in some installations.
Daikin 24,000 BTU Entra R32 Series
The Daikin Entra R32 Series represents premium ductless technology with advanced environmental considerations. This system utilizes R32 refrigerant, which offers superior environmental performance compared to traditional R410A refrigerant. The 18 SEER2 rating, 9 HSPF2, and 3.30 COP demonstrate exceptional energy efficiency across all operating modes.
With coverage capability up to 1,500 square feet, this system handles larger spaces than comparable 24,000 BTU units. The advanced DC inverter technology provides 22,400 BTUs of cooling capacity with variable output ranging from 6,900 to 24,200 BTU. Heating capacity reaches 23,000 BTUs with a broader range from 5,800 to 27,300 BTU.
The system includes premium features such as Powerful Operation mode, ECO+ energy efficiency optimization, Blue Fin corrosion protection, and a Titanium Apatite Photocatalytic Air Purifying Filter. These advanced features enhance indoor air quality while maintaining superior comfort levels. The wide operating temperature range ensures reliable performance from 50°F to 115°F for cooling and 5°F to 65°F for heating.
Buying Guide for MRCOOL Mini Split Systems
When selecting a MRCOOL mini split system, several key factors determine the best choice for your specific application. Room size calculation remains the primary consideration, with general guidelines suggesting 20-25 BTUs per square foot for standard insulation. Higher ceilings, large windows, or poor insulation may require additional capacity.
Energy efficiency ratings significantly impact long-term operating costs. SEER ratings above 16 provide excellent efficiency, while models exceeding 20 SEER offer premium performance. Consider local utility rates and usage patterns when evaluating efficiency investments. Energy Star certification ensures verified performance standards.
Installation requirements vary between models, with DIY-friendly options offering cost savings for capable homeowners. Professional installation provides warranty protection and ensures proper system commissioning. Consider electrical requirements, as 115V models avoid electrical upgrades while 230V systems may require additional wiring.
Smart features and connectivity enhance convenience and energy management capabilities. WiFi-enabled models allow remote monitoring and control, while voice assistant integration provides hands-free operation. These features particularly benefit users with varying schedules or multiple properties.
Climate considerations affect system selection, with heat pump capability essential for year-round comfort. Review minimum operating temperatures for heating mode, especially in colder regions. Some models perform effectively down to 5°F, while others may require backup heating systems.
Warranty coverage varies between manufacturers and installation methods. DIY installations may affect warranty terms, while professional installation often provides extended coverage. Review warranty terms carefully, including parts, labor, and compressor coverage periods.