The only ductless air conditioning and heating unit that is easy to install for thousands less than a conventional HVAC system. MRCOOL DIY even adjusts the temperature to the perfect degree wherever you are in your room.
Rooms up to 500 Square Feet

Pay Once


Payments as low as

FREE Shipping anywhere within the continental USA
FREE Shipping anywhere within the continental USA
30 Day Money Back Guarantee

Rest easy with MRCOOL DIY's 30 Day Money Back satisfaction guarantee, premium 7-year compressor warranty, 5 year parts warranty, and energy star certification.

7 Year Compressor Warranty

Enjoy our full 7 year compressor warranty. Use your MRCOOL DIY with confidence during the hot days of summer.

5 Year Parts Warranty

MRCOOL DIY guarantees the quality of this product. Should there be any manufacturing mishaps, we’ll happily replace it.

Free Shipping

Enjoy free shipping anywhere within the continental USA. We'll have it out to you within 3-5 business days


The only ductless air conditioning and heating unit that is easy to install for thousands less than a conventional HVAC system. MRCOOL DIY even adjusts the temperature to the perfect degree wherever you are in your room.

A MRCOOL DIY Series heat pump is the only ductless mini-split system on the market explicitly designed for amateur installation. You don't need special tools or training to install this high efficiency heat pump. The line sets recharged with R-410A refrigerant, the quick hook-up electrical connections, and the quality engineering mean just about anyone can install a MRCOOL DIY in their home with no problem at all in only a few short hours. If you want great air comfort without paying an arm and a leg for installation, you want an easy-to-use MRCOOL DIY Series ductless heat pump.

Unlike any other ductless heat pump on the market, the MRCOOL DIY series is specifically designed for easy installation, the MRCOOL DIY series comes with precharged line sets alleviating 1 major obstacle to amateur installation in a single stroke

MRCOOL ductless mini-split air conditioners and heat pumps are the cutting edge of what modern, flexible fabrication can produce. These air conditioners rely on state-of-the-art manufacturing processes and advanced design to deliver high efficiency air comfort anywhere you need it.

Everything You Get

  • EASY DIY INSTALLATION The included 25′ pre-charged R-410a quick connect lineset allows you to install this innovative ductless system without special tools, equipment, or training.
  • FOLLOW ME Personalized Performance for wherever you are in the room. Keep the remote close by, and MRCOOL DIY will track the air temperature around you to ensure you receive maximum comfort.
  • LOW AMBIENT COOLING Cool all the way 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 Never lift a finger after a power outage. The MRCOOL DIY auto restart will have the unit running again in no time at all.
  • GOLD FIN CONDENSER Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.
  • REMOTE APP WIFI CONTROL Control your DIY anywhere with your Apple or Android smart device and an internet connection.
  • TEMPERATURE COMPENSATION Our temperature ompensation technology help keeps you comfortable in any weather conditions
  • LEAKAGE DETECTION 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.
  • SLEEP MODE We made Sleep Mode easy to program to save money, and let you sleep a little easier.
  • LOUVER POSITION MEMORY The louver will automatically move to the same position as you set last time the unit was turned on.

Quick Specs

Trial & Return: 30 Nights
Warranty: 7-Year Compressor Warranty & 5-Year Parts Warranty
Color: White
Shipping: Free Shipping

MRCOOL DIY Dimensions & Weight

12000 BTU
Product Dimensions:
Indoor - 31.57 inch x 7.44 inch x 11.69 inch
Outdoor - 30.31 inch x 11.81 inch x 21.85 inch

Indoor - 18.7 lbs
Outdoor - 65.0 lbs

18000 BTU
Product Dimensions:
Indoor - 37.99 inch x 8.46 inch x 12.56 inch
Outdoor - 31.50 inch x 13.11 inch x 21.81 inch

Indoor - 26 lbs
Outdoor - 80.5 lbs

24000 BTU
Product Dimensions:
Indoor - 42.52 inch x 8.90 inch x 13.19 inch
Outdoor - 33.27 inch x 14.29 inch x 27.64 inch

Indoor - 29.1 lbs
Outdoor - 136.69 lbs

36000 BTU
Product Dimensions:
Indoor - 49.57 inch x 11.10 inch x 14.25 inch
Outdoor - 37.24 inch x 16.54 inch x 31.89 inch

Indoor - 55.6 lbs
Outdoor - 147.27 lbs


Frequently Asked Questions