• MRCOOL DIY Design Your Own 4 Zone

Brand: MRCOOL

MRCOOL DIY Design Your Own 4 Zone Multi-Zone Ductless Mini Split Heat Pump System 230V - R454B

SKU DYO-DIY-4-ZONE
$2,100.00

Buy Now, Pay Over Time

Build your DIY system

Every build is reviewed by our HVAC experts at no extra cost before it ships. Need help? Call 800-212-8846.

Checking availability...

Secure Payment Methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

Free & Fast Shipping

We offer fast, relaible & free shipping on all orders within the contiguous U.S. Orders are typically processed within 1–2 business days, with most deliveries arriving in 5–9 business days, depending on the product and destination. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your shipping information is accurate at checkout. For complete details, please see our Shipping Policy or contact us by phone, email, or live chat.

Price Match Guarantee

Find a lower price? Contact Us +1 (800) 212-8846 to match it!

See our Price Match Policy for full details.

Returns

Returns are accepted within 30 days of delivery for unused, uninstalled items in their original packaging.

Customer-initiated returns are subject to customer-paid return shipping and a 25% restocking fee. Defective or damaged products are not subject to a restocking fee.

For complete details, please see our Return & Refund Policy or contact us by phone, email, or live chat.

  • Authorized Dealer
  • Lifetime expert help
MRCOOL DIY Design Your Own 4 Zone

Brand: MRCOOL

MRCOOL DIY Design Your Own 4 Zone Multi-Zone Ductless Mini Split Heat Pump System 230V - R454B

SKU DYO-DIY-4-ZONE
MRCOOL DIY Design Your Own 4 Zone

Product Overview

Zones: 4
Covers up to Custom
DIY Installation
Voltage: 208-230V
ENERGY STAR® Certified

BTU Coverage Guide

6,000 BTU
up to 200 sq. ft.
9,000 BTU
up to 400 sq. ft.
12,000 BTU
up to 550 sq. ft.
18,000 BTU
up to 800 sq. ft.
24,000 BTU
up to 1,050 sq. ft.
36,000 BTU
up to 1,550 sq. ft.

Additional factors may affect performance, including insulation, ceiling height, sun exposure, local climate, and the number of appliances in the room. For assistance, contact our Product Experts.

Customers also bought

    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 BTU 5th Gen Easy Pro 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 BTU 5th Gen Easy Pro 18.9 SEER2 Ductless Mini Split Heat Pump - R454B - 230V
    MRCOOL DIY 12,000 BTU 5th Gen Easy Pro 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 BTU 5th Gen Easy Pro 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 BTU 5th Gen Easy Pro 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 BTU 5th Gen Easy Pro 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
    62
    Customers rate us 5.0/5 based on 62 reviews.

    INSTALL WITH CONFIDENCE

    MRCOOL DIY Installation Videos

    Follow these step-by-step guides to better understand the installation process before getting started.

    Complete MRCOOL DIY Installation Walkthrough

    MRCOOL DIY Mini Split Installation Guide