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Choose Your MRCOOL DIY System

MRCOOL DIY 5th Generation system
MRCOOL DIY®

5th Generation

Premium DIY Performance

Shop DIY 5th Gen
  • Premium single-zone system
  • 9K–36K BTU systems
  • 25' Pre-Charged Line Set
  • Higher-efficiency options
  • 7-year compressor warranty
  • 5-year parts warranty
MRCOOL DIY Easy Pro system
MRCOOL DIY®

Easy Pro

Efficient DIY Comfort on a Budget

Shop DIY Easy Pro
  • Best price / efficiency balance
  • 9K–24K BTU systems
  • 11.5' / 16' Pre-Charged Line Set
  • Balanced efficiency and value
  • 5-year compressor warranty
  • 3-year parts warranty
MRCOOL DIY Select system
MRCOOL DIY®

Select

Affordable and Straightforward DIY Comfort

Shop DIY Select
  • Lowest-cost DIY series
  • 9K–24K BTU systems
  • 11.5' Pre-Charged Line Set
  • Simple essential DIY comfort
  • 2-year compressor warranty
  • 1-year parts warranty
MRCOOL DIY Multi-Zone system
MRCOOL DIY®

Multi-Zone

Independent Comfort for Multiple Rooms

Shop DIY Multi-Zone
  • 2–6 independently controlled zones
  • 18K–55K BTU condensers
  • 16' / 25' / 35' / 50' Line Sets
  • Heat & cool multiple rooms
  • 7-year compressor warranty
  • 5-year parts warranty

Shop MRCOOL by System Type

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DIY Mini Splits -Shop By Zone

Smart HVAC Solutions

Take control of your home comfort with MRCOOL® mini split systems designed for efficiency, performance, and easy installation. From DIY-friendly setups to high-efficiency heating and cooling, find the right system for every space—without the complexity or high installation costs.

Shop MRCOOL Systems
Air conditioner mounted on a wall with a smartphone displaying app interface, in a room with a plant and sofa.

Shop MRCOOL systems by size

9,000 BTU Compact rooms 12,000 BTU Bedrooms and offices 18,000 BTU Single-zone & multi-zone
Up to 3 zones 24,000 BTU Large living areas 27,000 BTU Multi-zone systems
Up to 4 zones 36,000 BTU Single-zone & multi-zone
Up to 5 zones 48,000 BTU Whole-home multi-zone
Up to 6 zones 55,000 BTU High-capacity multi-zone
Up to 6 zones

Best Selling DIY Systems

Newly Released by MRCOOL

Let customers speak for us

from 62 reviews
MRCOOL DIY 9,000 BTU 5th Gen Easy Pro 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Christopher Po
Good seller fast shipping

Good seller fast shipping.

MRCOOL DIY 9,000 BTU 5th Gen Easy Pro 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
MRCOOL DIY Select 18,000 BTU 17.3 SEER2 Ductless Mini Split System - R454B - 230V
Jeff Buser

It was very easy to install and the perfect size for what I needed.

MRCOOL DIY Select 18,000 BTU 17.3 SEER2 Ductless Mini Split System - R454B - 230V
MRCOOL DIY Select 12,000 BTU 17.5 SEER2 Ductless Mini Split System - R454B - 115V
eddie cortes
cool cool cool

Very satisfied with Mr.Cool unit keeps my apt so cool that I have turn up the thermostat excelent customer service

MRCOOL DIY Select 12,000 BTU 17.5 SEER2 Ductless Mini Split System - R454B - 115V
Anna
The shopping experience was seamless.

The shopping experience with The Living Outlet was seamless from start to finish. Our order arrived on time, everything was very well packed, and the entire process went smoothly. Before placing the order, I had a couple of questions about the system and wanted to make sure we were choosing the right option. Ryan was very helpful, knowledgeable, and took the time to answer our questions clearly, which made us feel much more confident about the purchase. The installation also went smoothly, and so far we are very happy with the system and how everything has worked out. It is always reassuring to purchase from a company that is responsive and helpful both before and after the sale. Overall, we had a great experience with The Living Outlet and are very satisfied with our purchase. Thanks, TLO!

The Living Outlet
MRCOOL DIY Select 12,000 BTU 17.5 SEER2 Ductless Mini Split System - R454B - 115V
Anna
Works Great

The system works great and good value for the price.

MRCOOL DIY Select 12,000 BTU 17.5 SEER2 Ductless Mini Split System - R454B - 115V
MRCOOL DIY 24,000 5th Gen Easy Pro BTU 18.9 SEER2 Ductless Mini Split Heat Pump - R454B - 230V
Jason B.

Energy bills are noticeably lower, and the comfort level is much better compared to our old unit

MRCOOL DIY 24,000 5th Gen Easy Pro BTU 18.9 SEER2 Ductless Mini Split Heat Pump - R454B - 230V
MRCOOL DIY 12,000 5th Gen Easy Pro BTU 19.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Angela F.

This is the second MRCOOL we’ve purchased. The 12K fits our office perfectly. Couldn’t be happier.

MRCOOL DIY 12,000 5th Gen Easy Pro BTU 19.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
MRCOOL 18,000 BTU DIY 5th Gen Energy Star 22.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
Ethan W.

Cools fast, runs efficiently, but the packaging could be sturdier. Still, highly recommend.

MRCOOL 18,000 BTU DIY 5th Gen Energy Star 22.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
MRCOOL 24,000 BTU DIY 5th Gen Energy Star 22.7 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
Amanda G.

Couldn’t be happier. Keeps our large bedroom perfectly cool, and I love controlling it with my phone.

MRCOOL 24,000 BTU DIY 5th Gen Energy Star 22.7 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
MRCOOL Advantage 5th Gen 36,000 BTU Ductless Mini Split Heat Pump System R-454B - 230V
Kelly M.

Perfect system for a nursery. Runs quietly and keeps the temperature steady all night.

MRCOOL Advantage 5th Gen 36,000 BTU Ductless Mini Split Heat Pump System R-454B - 230V
MRCOOL 18k DIY 5th Generation Mini-split Air Handler 230v R454B - DIY-18-HP-WMAH-230D25-O
James W.

Puts out plenty of cold air for our family room. Quiet enough that we can watch movies without distraction.

MRCOOL 18k DIY 5th Generation Mini-split Air Handler 230v R454B - DIY-18-HP-WMAH-230D25-O
MRCOOL DIY 18,000 BTU 5th Gen Easy Pro 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
Brian J.

Perfect for our small apartment. Simple setup, great airflow, and very quiet.

MRCOOL DIY 18,000 BTU 5th Gen Easy Pro 20 SEER2 Ductless Mini Split Heat Pump System - R454B - 230V
MRCOOL 12,000 BTU DIY 5th Gen Energy Star 23.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Emily T.

Great system, but I wish the Wi-Fi app was a little more polished. Otherwise, no complaints.

MRCOOL 12,000 BTU DIY 5th Gen Energy Star 23.5 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
MRCOOL DIY 9,000 BTU 5th Gen Easy Pro 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
Paul G.

Nice little unit. It’s not as powerful as the larger ones of course, but for a small room, it does the job well.

MRCOOL DIY 9,000 BTU 5th Gen Easy Pro 20.2 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V
MRCOOL DIY 24,000 5th Gen Easy Pro BTU 18.9 SEER2 Ductless Mini Split Heat Pump - R454B - 230V
Catherine S.

We’ve had this for a few months now, and I’m impressed with how well it heats in the winter too. Very versatile

MRCOOL DIY 24,000 5th Gen Easy Pro BTU 18.9 SEER2 Ductless Mini Split Heat Pump - R454B - 230V

What customers think about the store

Store offers efficient HVAC systems with strong DIY installation support. Customers praise fast shipping, competitive pricing, and excellent product performance. Units deliver powerful cooling/heating, quiet operation, and energy savings. Installation is strai...

AI-generated from customer reviews.

Cooling Installation Instructions Room
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Customers rate us 5.0/5 based on 62 reviews.

Mini Split Resources

View all
  • HVAC technician installing a mini split air handler on an interior wall - Mini Splits
    Do Mini Splits Need Professional Installation?

  • Comparison of single-zone outdoor condenser versus multi-zone mini split indoor air handlers
    Single-Zone vs. Multi-Zone Mini Splits: Which Do You Need?

  • Mini split unit mounted on wall with floor plan and measuring tape for BTU sizing
    How to Size a Mini Split by BTU: The Complete Room-by-Room Guide