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.
Your HVAC System at a Glance
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
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 Resistant condenser coils for long term reliability - even on the coast.
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
If you have WiFi, you can control your HVAC system from anywhere where you have internet access.
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.
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
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
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
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
Amazon Alexa & Google Assistant
The 4th Gen DIY® is fully compatible with Amazon Alexa and Google Assistant.
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
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
One House, One Solution
Multi-zone technology gives you flexibility and control whenever and wherever you want it.
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
Degree Temperature Control
Control the temperature of your space down to the degree using MRCOOL DIY's sensor technology.
Easy Install
DIY Convenience
Simply install MRCOOL DIY without the need for expensive tools or specialized training.