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MrCool 4th Gen vs 3rd Gen: Exploring the Upgraded DIY Mini Split System

MrCool 4th Gen vs 3rd Gen: Unveiling the Upgrades in the Latest MrCool DIY Mini Split System

Discover the key differences between the MrCool 4th Gen and 3rd Gen DIY Mini Split Systems and why upgrading to the latest model is worth it. Gain complete control over your indoor climate and reduce your energy bills with this advanced, easy-to-install HVAC solution. Are MRCOOL Mini Splits any good? Read on to find out!

Major Upgrades: MrCool 3rd Gen vs 4th Gen DIY Mini Split Systems

What's New with the MrCool 4th Gen DIY Mini Split System? It has a new and improved DIYPRO MC Cable for safe connection.

What sets the MrCool 4th Gen DIY Mini Split System apart from its 3rd Gen predecessor? The 4th Gen model boasts all the great features from the 3rd Gen, but with fantastic updates like better heating and cooling ranges, stellar efficiency levels, and even simpler DIY installation.

The 4th Gen DIY ductless mini-split comes with the latest specifications to maximize efficiency and meet updated laws and regulations. The single zone 12,000 BTU mini split has an impressive SEER of 22, making it Energy Star Certified. That means you can enjoy lower bills for years to come!

Installation is now even easier with MrCool's new DIYPRO™ MC cable, which securely connects the air handler to the condenser and provides protection against all sorts of challenges like bad weather, pesky critters, and even gardening tools. Plus, the new generation offers new line set lengths of 35 ft. and 50 ft., eliminating the need to couple shorter lines. 

MRCOOL DIY Mini Split: Versatility for One Room or Multiple Areas

Get FREE SHIPPING when you purchase a MrCool DIY 4th Gen Multi Zone Ductless Mini-Split System with Air Sanctuary.

The MRCOOL Mini Split offers versatility with single-zone options in four different sizes, each designed to cover specific areas—perfect for open spaces:

  1. A 12k BTU DIY single zone system, which typically covers up to 550 square feet
  2. An 18k BTU DIY single zone system, which handles up to 750 square feet - choose between different indoor units. The ceiling cassette or wall mounted air handlers.
  3. A 24k BTU DIY single zone mini split system that heats and cools 1,000 square feet
  4. A 36k BTU DIY single zone mini split system that covers 1,500 square feet

Need to condition two rooms? Opt for the brand-new MRCOOL DIY 18,000 BTU two zone option. It's great for nearby bedrooms, or even a she-shed and man cave combo! 

Want to heat and cool your entire home? MRCOOL has expanded the multi-zone DIY lineup to support up to five zones, covering a total of 2,400 square feet!


Experience Peace of Mind with MRCOOL DIY's Industry-Leading Warranty

Get the best warranty in the HVAC industry with the MrCool Limited Lifetime Warranty.

Get the best warranty in the HVAC industry with the MrCool Limited Lifetime Warranty. Enjoy the confidence that comes with MrCool's Limited Lifetime Warranty, the best in the HVAC industry! Sign up for the MRCOOL Care Kit program to maintain your warranty and keep your system in tip-top shape. If you don't sign up for the limited warranty, no worries! You'll still get a 5-year parts and 7-year compressor warranty. Contact Air Sanctuary for more details on warranty registration.


What’s Included in Air Sanctuary's MRCOOL DIY Mini-Split Heat Pump Air Conditioner Bundle?

Purchase your MrCool DIY Multi-Zone Ductless Mini-Split System on FREE shipping and mini-split ac expertise.

Purchase your MrCool DIY Multi-Zone Ductless Mini-Split System on and enjoy FREE shipping and diy mini-split heat pump ac expertise. When you order a MRCOOL DIY Mini Split Heat Pump Air Conditioner Bundle from Air Sanctuary, you'll get everything you need for a fully functional system, including air handlers, condenser, line sets, and communication wire. You can even add extra accessories to customize your order! You can also customize your own system to fit your needs by using the configurator you'll find on our Customize Your Own MRCOOL DIY system page. Contact us for help with customizing your order as well.


Where can I buy a MRCOOL DIY Mini-Split?

At Air Sanctuary, of course! Join the ranks of happy customers who have experienced the high efficiency, advanced technology, and unbeatable warranty of a 4th Generation MRCOOL DIY Ductless Mini-Split.

We offer competitive pricing, special discounts,  and payment plan options for everyone, making our products accessible to as many people as possible. Save money and enjoy the ultimate comfort in your home or office by upgrading to the 4th Gen MRCOOL DIY Mini-Split today!


Upgrade Your Home with a 4th Gen MRCOOL DIY Mini-Split Today!

Why wait? Get your very own 4th Generation MRCOOL DIY® ductless mini-split system and start enjoying the benefits of advanced climate control, energy efficiency, and hassle-free installation. With the impressive performance of the MRCOOL DIY mini splits, you can rest assured that you're making a wise investment in your home's comfort and energy savings.

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