Revolutionizing Home Comfort: MRCOOL 5th Gen DIY System with R-454B Technology

At Skyway Heating and Air, we’re always looking for ways to bring the latest in HVAC technology to Florida homeowners—and the new 5th Generation MRCOOL® DIY® Ductless Mini-Split is a game changer in both efficiency and convenience. Designed with cutting-edge innovation and eco-conscious performance, this system sets a new standard in home comfort.

Now Featuring R-454B Refrigerant – A Greener, Smarter Choice

The HVAC industry is transitioning toward refrigerants with lower environmental impact, and MRCOOL® is leading the way with its switch to R-454B refrigerant. Compared to R-410A, this new refrigerant offers:

• 80% lower Global Warming Potential (GWP)

• Enhanced energy efficiency

• Compliance with upcoming environmental regulations

This refrigerant change supports a cleaner, more sustainable future without compromising performance.

Outstanding Efficiency = Big Savings

The 5th Gen MRCOOL® DIY® Mini-Split boasts some of the highest efficiency ratings in its class:

• Up to 23.6 SEER2

• Up to 11.5 HSPF2-4

Most single-zone models are ENERGY STAR® certified, which not only reduces your energy bills but also may qualify you for valuable federal rebates and local incentives.

Perfect Fit for Any Space – Including Smaller Rooms

This series introduces the much-anticipated 9,000 BTU model, ideal for smaller spaces such as:

• Bedrooms

• Home offices

• Converted garages

• Bonus rooms (approx. 350 sq. ft.)

Want even more flexibility? MRCOOL® has added a 6,000 BTU air handler to their multi-zone system lineup, perfect for ultra-small spaces around 200 sq. ft.

Whole-Home Comfort with Multi-Zone Options

The new 55,000 BTU Multi-Zone Condenser supports up to 6 zones and covers spaces up to 2,290 sq. ft.—making it ideal for whole-home installations. Whether you're upgrading your current HVAC or building new, the modular flexibility of this system makes it easier than ever to customize your comfort room by room.

True DIY Installation – No HVAC License Needed

One of MRCOOL®’s most attractive features is the DIY® Quick Connect® Pre-Charged Line Set system. Homeowners can:

• Skip special tools and vacuum pumps

• Avoid costly professional installation

• Enjoy a fast and straightforward setup

Once the condenser and indoor air handlers are mounted, connecting the pre-charged line set is simple and safe. Power it on, and you’re enjoying efficient comfort in no time—with the satisfaction of installing it yourself!

Ready to Upgrade Your Comfort?

Skyway Heating and Air is proud to offer the new 5th Gen MRCOOL® DIY® Mini-Split systems, available for local pickup across Southwest Florida. We’re here to help you choose the right model for your home, and answer any questions about rebates, system sizing, or installation.

👉 Check out our website at skywayacservice.com to see if this revolutionary system is the right fit for your home.

Tags: MRCOOL 5th Gen, R-454B Refrigerant, DIY Mini-Split, Energy-Efficient HVAC, Florida HVAC, Ductless AC, Multi-Zone Mini Split, Home Comfort, HVAC Upgrades