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MRCOOL DIY 36K BTU 4th Gen 1-Zone 18 Seer Energy Star Ductless Mini-Split Air Conditioner

  • Based on 324 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Jacks Small Engines

Arrives Nov 24 – Nov 25
Order within 8 hours and 18 minutes
Available payment plans shown during checkout

Style: 36k


Size: 4th gen


Features

  • Energy efficient 18 SEER, 12 HSPF

Brand: MRCOOL COMFORT MADE SIMPLE


Capacity: 3 Tons


Cooling Power: 36000 British Thermal Units


Special Feature: Energy Star-Certified Efficiency. Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified, Enhanced control from anywhere. Control your MRCOOL DIY anywhere with your Apple or Android smart device and an internet connection., Features 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., Easy DIY Installation, Precharged R-410 Quick Connect Line Set, Pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training., Low ambient cooling feature allows for cooling down to 5 degrees for any application that requires cooling all year. Auto restart feature will start your Mrcool automatically after a power outage when the power is restored. See more


Product Dimensions: 16"D x 30"W x 40"H


Energy Star: 1 Star


Seasonal Energy Efficiency Ratio (SEER): 18


Color: White


Voltage: 230


Noise Level: 34 dB


Manufacturer: ‎MRCOOL


Part Number: ‎DIY-36-HP-WM-230C25


Item Weight: ‎262 pounds


Product Dimensions: ‎16 x 30 x 40 inches


Item model number: ‎4th gen


Size: ‎4th gen


Color: ‎White


Style: ‎36k


Pattern: ‎Split System


Power Source: ‎Corded Electric


Voltage: ‎230


Wattage: ‎35


Installation Method: ‎Split System


Item Package Quantity: ‎1


Sound Level: ‎34 dB


Mounting Type: ‎Wall


Certification: ‎Energy Star


Special Features: ‎Energy Star-Certified Efficiency. Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified, Enhanced control from anywhere. Control your MRCOOL DIY anywhere with your Apple or Android smart device and an internet connection., Features 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., Easy DIY Installation, Precharged R-410 Quick Connect Line Set, Pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training., Low ambient cooling feature allows for cooling down to 5 degrees for any application that requires cooling all year. Auto restart feature will start your Mrcool automatically after a power outage when the power is restored.


Included Components: ‎Ductless Mini-Split


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Manufacturer


Capacity: ‎3 Tons


Floor Area: ‎15000 Square Feet


Date First Available: June 8, 2022


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 24 – Nov 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Mr. Cool Split 12k BTU is amazing!
Style: 12K Size: 4th gen
Well, so far….so wonderful! We watched videos and read the instruction, first of all. Hubby then laid out all the parts and they were all intact, well packed too. He then poured a concrete pad for the outside compressor and allowed it to dry and cure. Once he knew everything was ready, he took his time, a few hours, and installed the unit. WOW, AMAZING! Both inside and outside units are whisper quiet; can’t really hear the inside unit on the other side of the room. When I returned home from work, we installed the USB unit so we could control the system remotely from the app and from Alexa….this is great! Please be sure you take your time and follow instructions. Watch some YouTube videos, good ones, because there are definitely some lousy ones that will get you into trouble during install. All said and done? The install was easy and this unit will save you so much money because you don’t need to hire a pro. Cooling and Heating is so comfortable, without blowing hard or loudly into the room. The fan mode works well, as well. Right now I canno say enough about this system….wish we would’ve purchased this years ago. Good luck and I hope you enjoy your Mr. Cool as much as we do. Will add indoor pics soon. UPDATE: We’ve been using this unit daily and are absolutely impressed! We live in the desert so this time of year morning temps are in the 40s and daytime in the 80s, therefore we use AC and heat in the same day and this Mr. Cool is impressive, to say the least. I’m so hoping it is quality and holds up because we’re so happy with this purchase. ... show more
Reviewed in the United States on April 20, 2023 by Team Matthias Team Matthias

  • Easy to connect lines between the units and it works great!
Style: 12K Size: 4th gen
Watched youtube of people putting these split units in and after at last 4 times, I was able with little difficulty installing mine. The unit works great , cools the 20 x 20 room with ease, very quite, and easy to use remote and hard to believe it’s a 110 ac 12000 btu!
Reviewed in the United States on October 14, 2024 by Randy Ledet

  • Installation easy. Works and looks great
Style: 24k Size: 4th gen
Life savor when you don’t need a full system. It works and looks good so far. Nice clean install. I’ll update if there are any breakdowns. I’d recommend so far.
Reviewed in the United States on September 18, 2024 by Ronald L.

  • Mrcool DIY Mini-Split rocks
Style: 12K Size: 4th gen
Product shipped timely and in tact. The unit was relatively easy to install and it works like a charm!
Reviewed in the United States on September 26, 2024 by Joseph Romero

  • Mr. Cool NOT!!!!!
Style: 36k Size: 4th gen
I purchased this unit which is 36,000BTUs rated for 1500 sq ft for my 1200 sq ft shop. It was pretty easy to install though NOBODY would use a 1/2" conduit connection from the power supply to the condenser, so it should be a 3/4" connection. Other than the crap instructions and pictures, took about 2 days or 10 hours. I am VERY capable of doing this work and will say my 1st attempt at an AC unit of any kind. Bottom line it turned right on, blows cold air despite the poor fan speed and simply is incapable of keeping my shop below 87 degrees, even on some days when it is just above 80 degrees. I did 4 tests all starting around 97, 92, 87, 95 inside and 101, 96, 94, and 83 inside. I NEVER got a reading below 87 degrees in my shop even after running for over 24 hours straight through the night when the temperature outside fell into the low 70s each night. I think I would need 4 of these units to get the workable comfort level that I was expecting. It is too bad, I cannot return it a so I am out 2 days work and $3000. Don't make the same mistake!!!! ... show more
Reviewed in the United States on July 12, 2023 by Bryan

  • MOSTLY easy for DYI. Worked first time, makes cold!
Style: 12K Size: 4th gen
The unit showed up early, and although the box was punctured, the insides were fine. I took my time and read the installation manual about 8 times before starting. Not everything is covered in the manual, but was is in there is very well written and mostly easy to understand. Nothing in the manual about running tubing out the sides of the indoor unit, but one call to customer service confirmed it is set up to do that. (Why don't they explain that in the install manual?) I ended up running mine out the back. It would be nice if they explained how to actually attach the UV tape. It has no sticky back, so one is left to improvise. A little guidance would help. The drain hose they supply is very flimsy. I purchased the outdoor bracket from Amazon. JEACENT Outdoor Wall Mounting Bracket for Ductless Mini Split Air Conditioner Heat Pump Systems, Universal, 7000-18000 Btu Condenser. Otherwise, it as not hard to do most of the install myself (with a helper for last day), and it took 2.5 days total. Take your time, double check everything. UPDATE after 4 months. I am very pleased with my Mr. Cool unit. It's very quiet and hasn't increased my electric bill very much as far as I can tell. I've left it running for a month straight during this very hot summer in SC, and set at 76deg my shop is cold. ... show more
Reviewed in the United States on April 19, 2024 by D. Gould D. Gould

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