Free exclusive 1 year labor & refrigerant warranty on mini splits, additional 3% off at checkout. >$600 orders ship free. Call: 1-615-553-8118

HVAC for Everyone

Get started with your new heating and cooling system today by building a customized bundle, speak with one of our HVAC experts, or learn more about our products below.

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Your HVAC System at a Glance

Easy Installation

Easy Installation

Easily install the MRCOOL DIY® using our patented simple mount, connect, and enjoy system. MRCOOL DIY® provides to-the-degree comfort in your space whether you need heat or AC.

Quick Connect Line Set

Quick Connect Line Set

The included Pre-Charged R-410a Quick Connect Line Set allows anyone to install our innovative ductless mini-split without expensive tools or specialized training.

Gold Fin® Corrosion Resistance

Gold Fin® Corrosion Resistance

Gold Fin®Corrosion Resistant condenser coils for long term reliability - even on the coast.

Follow Me® Function

Follow Me® Function

Keep the remote close by, and MRCOOL® DIY® will track the air temperature around you to ensure you receive maximum comfort.

Smartphone App

Smartphone App

If you have WiFi, you can control your HVAC system from anywhere where you have internet access.

Limited Lifetime Warranty

Limited Lifetime Warranty

The DIY® 4th gen Multi-Zone comes with a LIMITED LIFETIME compressor warranty, a 7-year compressor replacement warranty, and a standard 5-year parts warranty for the original registered owner. Only if you buy from MRCOOL Direct can you also get our Direct Protect additional warranty that also covers labor and refrigerant, even if you install the system yourself.

Free One Year Warranty

Enjoy peace of mind with our exclusive free 1 year labor & refrigerant warranty! Need more warranty options with longer terms? We have options!

Need Financing?

We have a financing option for you, regardless of your situation.

Which Bundle Is Right For Me?

Select an option below to view details about each of our bundles and compare to decide which best suits your needs.

DIY 4th Gen

DIY 4th Gen

For homeowners who want a powerful, energy-efficient mini split option for a single room while still avoiding professional installation costs.

MRCOOL’s flagship DIY 4th Generation Multi-Zone Mini Split is perfect for those who want full climate control in multiple rooms without hiring a professional for installation. It offers a higher efficiency rating than the Easy Pro and is available in up to 36k configuration for larger spaces. The pre-charged quick-connect line set makes it the easiest full-featured DIY system available, with advanced smart controls, energy efficiency, and low noise levels.

Highlighted Features

Smartphone App
Smartphone App
Control Heating & Cooling From Anywhere

If you have WiFi, you can control your HVAC system from anywhere where you have internet access.

The Best Warranties
The Best Warranties
Limited Lifetime | 7 Year Compressor & 5 Year Parts AND Direct Protect

Buy from MRCOOL direct and you get MRCOOL's manufacturer warranties and our Direct Protect Extended Warranty on Refrigerant and Labor, too.

Voice Controls
Voice Controls
Amazon Alexa & Google Assistant

The 4th Gen DIY® is fully compatible with Amazon Alexa and Google Assistant.

New DIYPRO® Cable
New DIYPRO® Cable
Safety & Durability

The included DIYPRO® armored cable is shielded in coated flexible conduit providing higher mechanical protection and durability.

5 Zone Options
5 Zone Options
Now Available

Now you'll be able to heat and cool up to 5 rooms at a time with the MRCOOL® DIY® 5 Zone Multi-Zone unit.

Multi-Zone
Multi-Zone
One House, One Solution

Multi-zone technology gives you flexibility and control whenever and wherever you want it.

Low Hassle
Low Hassle
No Duct Work Needed

If you have WiFi, you can control your HVAC system from anywhere where you have internet access.

Personalized Comfort
Personalized Comfort
Degree Temperature Control

Control the temperature of your space down to the degree using MRCOOL DIY's sensor technology.

Easy Install
Easy Install
DIY Convenience

Simply install MRCOOL DIY without the need for expensive tools or specialized training.