MRCOOL DIY Mini Split Series Explained: 5th Gen vs Hyper Heat vs DIY Select vs Easy Pro
MRCOOL® has several DIY mini split series, and each one is built for a different type of homeowner, space, budget, and installation need. If you are trying to decide between the MRCOOL DIY® 5th Generation, DIY Hyper Heat, DIY Select, or DIY Easy Pro, this guide breaks down the major differences in plain English.
At MRCOOL DIRECT, we help customers choose the right system before they buy so they get better comfort, better efficiency, and the right installation setup the first time.
Quick Comparison Table
Quick Comparison: Which MRCOOL DIY Series Is Right for You?
Best for homeowners who want the most complete DIY system with high efficiency, strong warranty coverage, smart controls, R-454B refrigerant, Quick Connect® line sets, DIYPRO® cable, and the most size options.
Best for:
- Bedrooms
- Living rooms
- Garages
- Workshops
- Open areas
- Single-zone installations
- Homeowners wanting premium DIY performance
Available sizes:
- 9K BTU
- 12K BTU
- 18K BTU
- 24K BTU
- 36K BTU
Best for colder climates where stronger low-temperature heating performance matters. Hyper Heat models are designed to maintain heating performance in extreme outdoor conditions and are compatible with wall-mounted air handlers and DIY® ceiling cassette options.
Best for:
- Cold climates
- Year-round heating
- Bedrooms
- Additions
- Bonus rooms
- Spaces needing stronger winter performance
Available sizes:
- 12K BTU
- 18K BTU
Best for customers who want a lower-cost DIY option with strong everyday performance, smart controls, R-454B refrigerant, and factory pre-charged 11.5ft Quick Connect® line sets.
Best for:
- Budget-conscious buyers
- Bedrooms
- Offices
- Garages
- Small to medium rooms
- Customers who want DIY installation at a lower price point
Available sizes:
- 9K BTU
- 12K BTU
- 18K BTU
- 24K BTU
Best for customers who want an affordable DIY mini split with longer warranty coverage than DIY Select and easy installation using pre-charged Quick Connect® line sets.
Best for:
- Garages
- Workshops
- Offices
- Basements
- Bonus rooms
- First-time DIY installers
- Value-focused buyers
Available sizes:
- 9K BTU
- 12K BTU
- 18K BTU
- 24K BTU
MRCOOL DIY 5th Gen: Premium DIY Comfort
The MRCOOL DIY® 5th Generation series is the flagship DIY mini split line. It is designed for homeowners who want a powerful, efficient, and feature-rich system without needing traditional HVAC installation tools.
These systems use R-454B refrigerant and include Quick Connect® pre-charged line sets, helping eliminate vacuum pumps, gauges, and refrigerant handling during installation.
Key features include:
- True DIY installation
- Pre-charged Quick Connect® line sets
- R-454B refrigerant
- DIYPRO® cable
- SmartHVAC app control
- Amazon Alexa and Google Assistant compatibility
- Follow Me® comfort sensing
- Dry Mode for humidity control
- Gold Fin® condenser coating
- 7-year compressor warranty
- 5-year parts warranty
- MRCOOL® Care Program eligibility
The DIY 5th Gen series is a strong choice for homeowners who want premium DIY performance, high efficiency, and long-term reliability.
MRCOOL DIY 5th Gen Size Guide
9K BTU DIY 5th Gen
The 9K DIY 5th Gen system is ideal for smaller rooms up to approximately 400 square feet. It works well in bedrooms, offices, small additions, and similar spaces.
Key specs:
- 9,000 BTU cooling
- Up to 10,000 BTU heating
- 115V power
- Up to 23.6 SEER2
- 25 ft Quick Connect® line set
- Up to 400 sq. ft. coverage
- 7-year compressor / 5-year parts warranty
12K BTU DIY 5th Gen
The 12K DIY 5th Gen system is a great fit for rooms up to approximately 550 square feet. It is commonly used in larger bedrooms, offices, sunrooms, and small living areas.
Key specs:
- 12,000 BTU cooling
- 12,000 BTU heating
- 115V power
- Up to 23.5 SEER2
- 25 ft Quick Connect® line set
- Up to 550 sq. ft. coverage
- 7-year compressor / 5-year parts warranty
18K BTU DIY 5th Gen
The 18K DIY 5th Gen system is built for medium-sized spaces up to approximately 800 square feet. It is a popular choice for garages, basements, workshops, and bonus rooms.
Key specs:
- 18,000 BTU cooling
- 18,000 BTU heating
- 208/230V power
- Up to 22.5 SEER2
- 25 ft Quick Connect® line set
- Up to 800 sq. ft. coverage
- 7-year compressor / 5-year parts warranty
24K BTU DIY 5th Gen
The 24K DIY 5th Gen system is designed for larger rooms up to approximately 1,050 square feet. It is a strong option for open-concept spaces, large basements, living rooms, and additions.
Key specs:
- 24,000 BTU cooling
- 24,000 BTU heating
- 208/230V power
- Up to 22.7 SEER2
- 25 ft Quick Connect® line set
- Up to 1,050 sq. ft. coverage
- 7-year compressor / 5-year parts warranty
36K BTU DIY 5th Gen
The 36K DIY 5th Gen system is the largest single-zone DIY option and is built for large open areas up to approximately 1,550 square feet.
Key specs:
- 36,000 BTU cooling
- 36,000 BTU heating
- 208/230V power
- Up to 18 SEER2
- 25 ft Quick Connect® line set
- Up to 1,550 sq. ft. coverage
- 7-year compressor / 5-year parts warranty
MRCOOL DIY Hyper Heat: Best for Cold Climate Heating
The MRCOOL DIY Hyper Heat series is designed for homeowners who need stronger heating performance in colder weather. These systems are built to heat and cool year-round while offering DIY-friendly installation.
The biggest advantage of Hyper Heat is low ambient performance. These units are designed to operate in heating mode down to extremely cold outdoor temperatures, making them a better fit for cold climates than standard systems.
Key features include:
- True DIY installation
- Hyper Heat cold-climate performance
- R-454B refrigerant
- 25 ft QuickConnect® line set
- DIYPRO® cable
- Gold Fin® condenser coating
- Smart app control
- Alexa and Google Assistant compatibility
- Compatible with wall-mounted air handlers
- Compatible with DIY® OuttaSight® ceiling cassettes
- 7-year compressor warranty
- 5-year parts warranty
- MRCOOL® Care Program eligibility
12K BTU DIY Hyper Heat
The 12K Hyper Heat condenser is ideal for spaces up to approximately 550 square feet and is a strong option for bedrooms, offices, additions, and cold-climate rooms.
Key specs:
- 12,000 BTU cooling
- 12,000 BTU heating
- 208/230V power
- 23.5 SEER2
- HSPF2-4: 10
- Heating operation down to -22°F
- Cooling operation down to -22°F
- Compatible with 12K wall mount and 12K ceiling cassette
- 7-year compressor / 5-year parts warranty
18K BTU DIY Hyper Heat
The 18K Hyper Heat condenser is ideal for spaces up to approximately 800 square feet and works well in basements, garages, workshops, additions, and cold-climate living spaces.
Key specs:
- 18,000 BTU cooling
- 18,000 BTU heating
- 208/230V power
- 21.2 SEER2
- HSPF2-4: 11
- Heating operation down to -22°F
- Cooling operation down to -22°F
- Compatible with 18K wall mount and 18K ceiling cassette
- 7-year compressor / 5-year parts warranty
MRCOOL DIY Select: Affordable DIY Installation
MRCOOL DIY Select is designed for customers who want a more affordable DIY mini split option while still getting smart control, Quick Connect® installation, and R-454B refrigerant.
It is a strong option for homeowners who want to heat and cool a smaller space without paying for a premium system.
Key features include:
- DIY-friendly installation
- R-454B refrigerant
- Quick Connect® line set compatibility
- 13 ft communication cable
- MRCOOL® Comfort app
- Alexa and Google Assistant compatibility
- Dry Mode
- Sleep Mode
- Auto Mode
- Gold Fin® condenser coating
- 2-year compressor warranty
- 1-year parts warranty
DIY Select is best for customers who want a simple, lower-cost DIY system for everyday comfort.
MRCOOL DIY Select Size Guide
9K DIY Select
Best for rooms up to approximately 400 square feet.
Key specs:
- 9K BTU capacity
- 115V
- Up to 400 sq. ft.
- Quiet operation down to 18 dBA
- 1-year parts warranty
12K DIY Select
Best for rooms up to approximately 550 square feet.
Key specs:
- 12K BTU capacity
- 115V
- Up to 17.5 SEER2
- Up to 550 sq. ft.
- 11.5 ft install kit
- 2-year compressor / 1-year parts warranty
18K DIY Select
Best for spaces up to approximately 800 square feet.
Key specs:
- 18K BTU class
- 208/230V
- Up to 17.3 SEER2
- Up to 800 sq. ft.
- 11.5 ft install kit
- 2-year compressor / 1-year parts warranty
24K DIY Select
Best for larger rooms up to approximately 1,050 square feet.
Key specs:
- 24K BTU class
- 208/230V
- Up to 16.5 SEER2
- Up to 1,050 sq. ft.
- 11.5 ft install kit
- 2-year compressor / 1-year parts warranty
MRCOOL DIY Easy Pro: Affordable, Simple, and Strong Warranty Coverage
The MRCOOL DIY Easy Pro series is built for homeowners who want an affordable DIY mini split with dependable performance and better warranty coverage than DIY Select.
It is especially popular for garages, workshops, offices, basements, studios, and bonus rooms.
Key features include:
- DIY-friendly installation
- R-454B refrigerant
- Quick Connect® line sets
- 11.5 ft install kit
- 13 ft communication cable
- DIYPRO® cable
- MRCOOL® Comfort app
- Alexa and Google Assistant compatibility
- Dry Mode
- Sleep Mode
- Auto Mode
- Gold Fin® condenser coating
- 5-year compressor warranty
- 3-year parts warranty
Easy Pro is a great middle ground between value and warranty protection.
MRCOOL DIY Easy Pro Size Guide
9K Easy Pro
Best for small rooms up to approximately 400 square feet.
Key specs:
- 9,000 BTU cooling
- 10,000 BTU heating
- 115V
- 20.2 SEER2
- HSPF2-4: 9.2
- Up to 400 sq. ft.
- 5-year compressor / 3-year parts warranty
12K Easy Pro
Best for rooms up to approximately 550 square feet.
Key specs:
- 12,000 BTU cooling
- 12,000 BTU heating
- 115V
- 19.5 SEER2
- HSPF2-4: 9.3
- Up to 550 sq. ft.
- 5-year compressor / 3-year parts warranty
18K Easy Pro
Best for medium spaces up to approximately 800 square feet.
Key specs:
- 17,000 BTU cooling
- 18,000 BTU heating
- 208/230V
- 20 SEER2
- HSPF2-4: 8.5
- Up to 800 sq. ft.
- 5-year compressor / 3-year parts warranty
24K Easy Pro
Best for larger rooms up to approximately 1,050 square feet.
Key specs:
- 24,000 BTU cooling
- 25,000 BTU heating
- 208/230V
- 18.9 SEER2
- HSPF2-4: 8.7
- Up to 1,050 sq. ft.
- 5-year compressor / 3-year parts warranty
Main Differences Between MRCOOL DIY Series
Best Overall DIY Series
MRCOOL DIY 5th Gen
Choose this if you want the strongest all-around DIY system with higher efficiency, more size options, better warranty coverage, and premium features.
Best for Cold Weather
MRCOOL DIY Hyper Heat
Choose this if winter heating performance is your top priority.
Best Budget Option
MRCOOL DIY Select
Choose this if you want the lowest-cost DIY option for basic heating and cooling.
Best Value Option
MRCOOL DIY Easy Pro
Choose this if you want affordable pricing with stronger warranty coverage than DIY Select.
Coverage Comparison
Warranty Comparison
Warranty options may apply with MRCOOL® Care registration.
Which MRCOOL DIY Mini Split Should You Buy?
Choose DIY 5th Gen if you want the premium DIY system with the best all-around performance.
Choose DIY Hyper Heat if you need stronger heating in cold climates.
Choose DIY Easy Pro if you want the best value with strong warranty coverage.
Choose DIY Select if you want the most affordable DIY mini split option.
No matter which series you choose, MRCOOL DIRECT can help you match the right BTU size, voltage, line set length, and accessories to your installation.
Frequently Asked Questions about the Mrcool, DIY 5th Gen, DIY Easy Pro and the DIY Select.
What is the difference between MRCOOL DIY 5th Gen and DIY Select?
DIY 5th Gen is the premium DIY series with higher efficiency options, longer warranty coverage, and more advanced overall performance. DIY Select is a more budget-friendly DIY option with shorter warranty coverage and lower SEER2 ratings.
What is the difference between DIY Easy Pro and DIY Select?
Easy Pro offers stronger warranty coverage and better overall value, while DIY Select is built as the lower-cost entry-level DIY option.
Which MRCOOL mini split is best for cold climates?
MRCOOL DIY Hyper Heat is the best choice for cold climates because it is designed for strong low-ambient heating performance.
Which MRCOOL DIY system is best for garages?
For most garages, DIY Easy Pro or DIY 5th Gen are excellent choices. A 12K system works well for many small garages, while 18K or 24K may be better for larger or poorly insulated spaces.
Do MRCOOL DIY systems require vacuum pumps?
No. MRCOOL DIY systems use pre-charged Quick Connect® line sets, which eliminate the need for vacuum pumps or refrigerant handling during standard installation.
Can I control MRCOOL DIY systems with my phone?
Yes. Many MRCOOL DIY systems support app control and voice control through Amazon Alexa and Google Assistant.
Why Buy from MRCOOL DIRECT?
MRCOOL DIRECT helps homeowners choose the right MRCOOL system with confidence.
When you shop with MRCOOL DIRECT, you get:
- Genuine MRCOOL products
- DIY system guidance
- Fast shipping
- Helpful installation resources
- Product comparison support
- Accessories and replacement parts
- Customer-first service
Whether you are comparing DIY 5th Gen, DIY Hyper Heat, DIY Select, or DIY Easy Pro, MRCOOL DIRECT is here to help you find the right system for your home, garage, workshop, basement, or addition.
Final Recommendation
If you want the strongest all-around DIY mini split, choose MRCOOL DIY 5th Gen.
If you live in a cold climate, choose **MRCOOL DIY Hyper Heat