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MRCOOL COMFORT MADE SIMPLE

Mrcool 4th gen Energy Star Ductless Mini-Split, White

  • Based on 230 reviews
Condition: New
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2026

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 1 left in stock, order soon!
Fulfilled by Spreetail
Arrives Nov 19 – Nov 24
Order within 20 hours and 38 minutes
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Style: 18K


Size: 4th gen


Features

  • Energy Star certified 22 SEER, 11.5 HSPF

Brand: MRCOOL COMFORT MADE SIMPLE


Capacity: 1.5 Tons


Cooling Power: 18000 British Thermal Units


Special Feature: 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., 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., 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 26"W x 36"H


BEE Star Rating: 1 Star


Seasonal Energy Efficiency Ratio (SEER): 22


Color: White


Voltage: 230


Noise Level: 31 Decibels


Manufacturer: ‎MRCOOL


Part Number: ‎DIY-18-HP-WM-230C25


Item Weight: ‎100 pounds


Product Dimensions: ‎16 x 36 x 26 inches


Item model number: ‎DIY-18-HP-WM-230C25


Size: ‎4th gen


Color: ‎White


Style: ‎18K


Pattern: ‎Split System


Power Source: ‎Corded Electric


Voltage: ‎230


Wattage: ‎30


Installation Method: ‎Split System


Item Package Quantity: ‎1


Sound Level: ‎31 Decibels


Mounting Type: ‎Wall


Special Features: ‎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., 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., 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: ‎1.5 Tons


Floor Area: ‎750 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 19 – Nov 24

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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Top Amazon Reviews

    • An effective and efficient DIY! Runs great!
Style: 36K Size: 5th gen
Review Image by Zack Groom Zack Groom
Review Image by Zack Groom Zack Groom
A great solution! I was able to DIY this project 100% (did have some help lifting the gear to mount to the walls). The install was involved in but manageable. Lines and power installed with ease. Outstanding heating and cooling capabilities. This was the best purchase I've made all year, a big quality of life upgrade that is already bringing down my electric bill. 10/10 would recommend and buy again. ... show more
Reviewed in the United States on October 24, 2025 by Zack Groom Zack Groom
    • Easiest of all the DIY units
Style: 18K Size: 4th gen
I did extensive research on the do-it-yourself style mini splits for my 20x40 shop and decided on this one for various reasons. First, I got quotes from local HVAC companies and the range for my shop was between $3000-$4000. For that price, I could buy 2 Mr Cool units. The reason I got the quotes was because most of the brand name, high rated companies like LG and Mitsubishi come with long warranties - like 10-15 yrs. The do it yourself brands are much less - less than 5 years. But, again, after I got the quotes, it was a no brainer. I recommend going to their website, reading the installation instructions, watching the videos, and having someone help since the outside and inside units are heavy and bulky to try to do alone. I followed the instructions and it was very easy to install. I did my electrical work one afternoon and installed the entire system the next day. The system is a “smart” unit which basically means it is Wi-Fi capable, has an app, can adjust the temps in “Eco” mode, and is very easy to use. I live in east Texas so the highs stay around 95-100 with a heat index around 110 for 4-6 weeks every August. I programmed the system to stay at 82 (which is probably an actual temp around 78) so I essentially have a climate controlled storage area/shop. If I’m going to be in the shop when I’m getting off work, I go on the app and set the temp to 74 so it’s cooling when I get home. It does not seem to struggle to keep at 82 and can cool down the space in less than an hour. Be aware that, apparently, all of the mini splits’ indoor fans run continuously. At least that’s been my experience after asking multiple people. However, the noise on both the fan inside and the outdoor unit are extremely quiet and I haven’t seen a major increase in my electric bill. I have turned it off for time to time but not in August in Texas! I’m cautiously optimistic about the longevity and durability of this unit so this review is subject to change which I will do if necessary. For now, I would highly recommend this system. ... show more
Reviewed in the United States on August 22, 2025 by gdx2
    • SUMMER TEMPS OVER 105°f? This is your unit.
Style: 18K Size: 4th gen
Review Image by Robert S. Robert S.
It has been in service since I installed it almost 18 months ago. No issues whatsoever with the unit that is the18k model installed in a 24ft wide x 24ft long x 8ft tall (ceiling) garage in Glendale Arizona. I can confirm with this square footage having partially insulated walls and mostly insulated single garage door with a 2nd story above, the 18k unit is sized effectively. If you live in a lower temp environment you could get away with 12k but a hot vehicle pulled in to the garage. Will make the unit work for a few hours. In that scenario, this should be the proper size for most two car garages, regardless of the climate. Do your own research, of course. However, I did a great deal of research on mini split units all the way from Mitsubishi down to knock-off Chinese units. regardless of the manufacturer, most units are not rated for outside temperatures above 108°F, MrCool DIY’s are and they provide proof and testing on their site. So if you live in warmer climate, knock off Chinese units are not designed for high outside temperatures, and a majority of them will disable themselves when temperatures go above 105°f as they have an ambient temperature sensor on the outside unit that keeps them from overheating. I can confirm that this unit works effectively at Arizona desert temperatures over 120°f. Of course there is a large efficiency lost at that temperature but the ratings provided by the company prove this unit is more efficient than brands three times the cost. In fact, I can’t find a mini split unit on the market regardless of cost that has the same efficiency at temperatures over 115.°f. Yes, someone that is a home DIYer can install this unit themselves. However, I highly recommend you hire an electrician to run your disconnect.. everything else most DIYers should and can do. I know (and can look up) NEC and local codes. But if you cause an electrical fire by a faulty install, good luck getting a payout from your homeowners insurance. Same story if you sell your home with the unit attached and it wasn’t installed to code. And yes, running your disconnect could cost anywhere from $300-1200, but that’s life. Some have stated these units leak. My unit has not lost efficiency and I’ve monitored monthly kilowatt draw since last year and it’s pretty consistent. I did hook up a manifold gauge, and the pressure is low based manufacturer spec for target super heat. However, I assume that it was a loss in the hose or possibly initial seepage on the quick connect (I didn’t leak check after install). I read low pressure/charge as a common theme with these quick connects. I have been told the line set is charged with R410a and so is the unit. However, if this is incorrect or there was a slight seepage while in the box or during initial connect, that would explain the current levels. It’s fractionally low and probably losing 15% efficiency. You can buy small one time bottles on the Internet to charge mini splits that come with a gauge, you can pick one of these up and I recommend you do, no HVACR-EPA license needed. I haven’t charged mine since I need to move my main house split unit and I’ll wait till I buy a full R 410a tank. When the temp is below 90° outside, keeping my garage at 78°, I barely see much change in my kilowatt usage total for my home. Results may vary.. However this unit is hugely efficient I also feel keeping the garage below 100° keeps heat ingress out of my house, thereby raising the efficiency of my main unit. @@NOTE: I am also using MRCOOL’s wall mount for the unit. The unit will produce a low frequency vibration, though it comes with rubber feet, which help with mid frequency, if you will attach this to your house, you will hear the unit running when the home is quiet. For me it’s only noticeable when it’s dead quiet in the house and I’m on that side. My guess have never been able to hear it. So I’m probably neurotic. lol ... show more
Reviewed in the United States on October 18, 2024 by Robert S. Robert S.
    • Truly DIY
Style: 24K Size: 4th gen
I purchased this with some curiosity whether it was truly DIY and was pleasantly surprised that it was. You do have to have electrical knowledge or have an electrician do the wiring. The instructions along with some Youtube videos definitely helped. I am pretty handy overall but I found this to be pretty straight forward to install. For function it works fantastic. I have it in a very well insulated Workshop, but it maintains the temp and humidity better than expected. on a 30 degree day it was blowing 95 degree air when demanded. It did struggle when temp was below 15 and could not maintain 62 degrees at night. It was routinely going in to defrost mode and during that time it isnt heating. I was not surprised by this heat pumps routinely struggle in low temps this does better than an older mini-split system i have but still isnt a heater during very cold periods. ... show more
Reviewed in the United States on March 15, 2024 by Brian

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