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Office Hours:
9AM to 5PM Mon. - Fri.
Closed: Sat. & Sun. 

Most all orders placed Monday thru Friday by 1:30 pm Eastern will be shipped same day.

Tech Support, Customer Service, and Order Takers will be available during office hours above.

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Our Products: Mr Cool AC / Heat Pumps > MRCOOL DIY Series

 MRCOOL 3rd Gen E Star DIY Ductless Mini-Split Heating and Air Conditioning Systems

Sophistication simplified.


Benefits of life in comfort:

True do-it-yourself installation
Quick Connect
Easy DIY Installation
Precharged 410 Quick Connect Lineset

The included 25â€Ã‚² pre-charged lineset allows you to install this innovative ductless system without special tools, equipment, or training.

Follow Me
Personalized Performance

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

cooling all year
Low Ambient Cooling
Cooling down to 5°F

This feature makes the MRCOOL DIY the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.

auto restart operation
auto restart
Never Lift a Finger

Power outage? Donâ€Ã¢â€žÂ¢t worry, the MRCOOL DIY auto restart will have the unit running again in no time at all.

Gold Fin Condenser
Corrosion Resistant

Live on the coast? Donâ€Ã¢â€žÂ¢t worry, our condenser is built to resist long term corrosion.

MRCOOL Remote App
Remote App
WiFi Control

Control your DIY anywhere with your Apple or Android smart device and an internet connection.

automatic leak detection
Leakage Detection
Protecting Your Investment

When the MRCOOL DIY detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.

programmable sleep mode
sleep mode
24-Hour Comfort

We made Sleep Mode easy to program to save money, and let you sleep a little easier.

air flow position memory
Louver Position Memory
Remembers So You Donâ€Ã¢â€žÂ¢t Have To

Horizontal louver will automatically move to the same position as you set last time the unit was turned on.

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Site Updated 06/25/2022

Copyright 2001 - 2022
Hart's Hearth Inc.
2543 Middle Rd.
Trenton, NC 28585
Toll Free: 877.602.FIRE (3473)
FAX: 800.571.2765

Hart's Hearth & Homestead is a Family Owned, Christ Centered company that promotes and supports the commission of the word and works of Jesus Christ.