DIY PRESEASON SALE

$400 OFF

Every DIY 5th Gen
Single Zone System

Now - March 31st 2026

COMFORT MADE SIMPLE

Ceiling cassettes

DIY OuttaSight

COMFORT FOR ALL SEASONS

The FUTURE of HVAC with Do-It-Yourself Heat Pump Systems

The future of comfort is here! Our Heating and Cooling Solutions are the cutting edge of what modern, flexible fabrication can produce. These systems rely on state-of-the-art manufacturing processes and advanced design to deliver high efficiency air comfort anywhere you need it. We innovated Do-It-Yourself for heating and cooling. MRCOOL ® DIY ® ductless mini-splits are the only true DIY ® HVAC on the market.

Single Zone

Multi Zone

Universal Series

The NEW DIY® Gen 5 Ductless Mini Split Systems Now In Stock!

ON SALE

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DIY Single Zone Mini Split

MRCOOL DIY 5th Gen 12K BTU Ductless Mini Split Heat Pump Complete System

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SEE HOW SIMPLE IT IS TO INSTALL

Discover Your Perfect DIY Climate Solution with our Certified Mr Cool Experts!

Let our Certified Mr Cool Experts guide you to the ideal DIY system for your needs!
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Mr Cool DIY HVAC Equipment Videos

Single Zone Video

Multi Zone Video

Universal Series Video

Experience Extreme Savings: Mr Cools Pre Charged Line Sets for Affordable HVAC Solutions!

Quick-Connect® Pre-Charged Line Set

Kink Resistant for Easier Bending During Installation

100% Accurately Pre charged R410A Refrigerant

Standard lengths of 16ft – 25ft – 35ft – 50ft can be combined using Optional DIY® Couplers for longer lengths (Maximum 75ft)

Simple to Use, Leak Proof, and Screw-on Quick Connect Valves do not require vacuuming

Quicker Installation than Conventional Line Sets. Eliminating 5 Steps from a standard Installation.

Strong UV Protective Insulation provides extra protection against sun damage, weather erosion, or destruction from animals or insects