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DIY 18,000 BTU 1.5-Ton 2-Zone 21 SEER Ductless Mini-Split AC and Heat Pump with 9K+9K & 16,25ft Lines

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  • High-efficiency ductless mini split system: 22 SEER
  • Easy DIY mini split installation with pre charged R410A lines
  • Air handlers/lines: 9K,9K/16,25ft
  • View More Details
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Product Details

About This Product

This MRCOOL DIY 18,000 BTU 1.5 Ton 2 Zone Ductless Mini Split Air Conditioner and Heat Pump with Wall Mounted Air Handlers bundle includes: 18K BTU Condenser, two 9K BTU Wall Mounts, 16/25ft. Quick Connect lines (1/4 X 1/2), 2 Remotes, and 2 Smart HVAC Wi Fi kits. Each 9K BTU Wall Mount is capable of heating and cooling up to 300 Sq Ft. MRCOOL offers an easy DIY ductless mini split installation with their patented DIY pre charged quick connect line sets that makes connecting refrigerant piping as simple as turning a few wrenches. The innovative Gold Fin anti corrosion technology makes this a great choice for those in coastal regions where corrosion is more likely. With a sleek design and quiet operation, the mini split wall mounted air handler is efficient and economic. Whether it be new construction, retrofit, greenhouse, server room or anything between they are designed to effectively and efficiently cool and/or heat your desired location. It can be operated with the included remote, Alexa, or Google Assistant. This system is backed by a 7 year compressor warranty and 5 year parts warranty.


  • Energy Star Certified efficiency: 21.2 SEER2, 9.6 HSPF2
  • Designed to efficiently provide ductless heating and cooling up to a combined 750 Sq Ft
  • Easy DIY installation: pre-charged R 410A quick connect line doesn't require special tools, equipment, or training
  • SmartHVAC app: wifi control compatible with Alexa and Google assistant you can control your DIY anywhere with your apple or android smart device and an Internet connection
  • Low ambient cooling: cooling down to 5F this feature makes the MRCOOL DIY the ideal system for computer server rooms, greenhouses, and any other application that requires cooling all year
  • Offers 7 Year Compressor warranty and 5 Year Parts warranty
  • The sum of the length of all line-sets for this system shall not exceed 123 ft. The maximum length for each air handler is 75ft.
  • Please note: 9K air handlers require 1/4 x 1/2 line-sets.
  • Click here for more information on Electronic Recycling Programs
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 321505288

Model # DIYM218HPW00C01



Air handler depth (in.)


Air handler height (in.)


Air handler width (in.)


Condenser depth (in.)


Condenser height (in.)


Condenser width (in.)



Air direction/circulation


Air handler weight (lb.)


Amperage (A)

18 A

BTU Cooling Rating

18000 BTU

BTU Heat Rating

18000 BTU

Color Family




Condenser weight (lb.)


Coverage Area (sq. ft.)


Decibel (Sound) Rating

59 dBA

Decibel Rating

59 dBA

Filter Type



Remote Control, Self-diagnostic tools

Line Set Length (Ft.)

16 ft x 25 ft

Mini Split Features

Fan only option, Mobile App, Multi-zone compatible, Timer, Wifi

Minimum Outdoor Temperature (F)

5 degrees F

Mount Location

Wall Mount

Number of cool settings


Number of Fan Speeds


Number of Tons

1.5 ton

Pack Size


Power Options


Remote Access

Remote Access

Requires Hub?

No Hub Required



Smart Home

Smart Home Enabled

Smart Home Protocol


Voice Control Hub Required

No Hub Required for Voice Control

Voltage (v)


Wattage (watts)

Not Measured

Works With

Alexa, Alexa, Google, Google Assistant

Zone Capacity

2 Zone

Warranty / Certifications

Certifications and Listings

AHRI Certified

Manufacturer Warranty

5 year part;7 year compressor;Limited liftetime compressor

Seasonal Energy Efficiency Ratio (SEER)


Questions & Answers

Q:Hi, For the 48K, 24k+24K Product Information Internet # 321562086 Model # DIYM248HPW01C24 UPC Code # 840255554169 Store SKU # 1008872974 Can both inside units work at the same time?
by|May 16, 2024
1 Answer
Answer This Question

A:  Yes, this condenser, DIY-MULTI5-48HP230C, will be able to run both air handlers, DIY-24-HP-WMAH-230C25, at the same time.

by|May 17, 2024
    Q:Can the units be installed on an interior wall instead of an exterior wall as shown in the installation video?
    by|May 15, 2024
    1 Answer
    Answer This Question

    A:  Yes, the air handlers can be installed on an interior wall. You will just need to make sure the drain hose has a downhill slope the entire run of it. If the drain hose will not have a continuous downhill slope a condensate pump will need to be installed.

    by|May 16, 2024
      Q:I need a 16’ extension line. Do I need the full kit or just the line for $179?
      by|May 10, 2024
      1 Answer
      Answer This Question

      A:  For extending your lines, you will need to purchase the 16' line set and the DIY Coupler Kit.

      by|May 13, 2024
        Q:One of the coolant lines came without the dust covers. Is it safe to install?
        by|May 5, 2024
        1 Answer
        Answer This Question

        A:  Yes, there should not be any issue with the installation due to the dust caps not being on the lines.

        by|May 6, 2024
          Showing 1-4 of 148

          Customer Reviews

          4 out of 5

          • 4 out of 69 reviews
          • 73% recommend this product
          Filter by:
          Showing 1-10 of 69 reviews
          Extremely satisfied with unit heating and cooling 750 square feet. Probably could have used the 1200 vs 1800 but having two rooms decided on this application with two heads. Overall inside and out the units are like what you review, very quiet. This is one of the products on the market that I feel is a great deal for the consumer, value, product quality, craftsmanship, and the packaging is unbelievable! Very very well done!! Actually a fun install and so well covered with the instructions. Best bang for the buck this year by far! Also, Home Depot was an excellent choice to buy the MRCOOL from, they treat you right if any issues at all, speaking of past experience I felt very well covered, the unit was waiting for me all packaged, no damage and came in a timely manner.
          • Verified Purchase
          What good is it if it can’t regulate temparatures
          I cannot recommend it based on my experience with the software. The one thing I just assumed it would be able to do is maintain a temperature. My experience is that It has no ability to maintain a temperature. If I set it to 70 and auto, it will be 76 or 65 randomly at any given time (see example screen shots, this is how it has been set all day and you can see the room temp). I have had a truly terribly experience with this product, and would strongly recommend you don’t buy it.
          Response from MR COOL TeamMar 18, 2024
          Please email us at support@mrcool.com or call us directly at 270-366-0457 for assistance with this issue. mrcool
            I had it shipped to store, it arrived within a week, all the parts were wrapped on skid which the Home Depot employee helped me load into my truck. I was happy with the purchase
            • Verified Purchase
            Temperature is way off.
            The temperature setting is only correct maybe 20% of the time. When set to 70 degrees, the unit will hold for a while then get stuck and the temperature will drop to 60 degrees or lower if it could. Other times it lets the temperature get over 80 degrees and will only kick on with a manual power cycle. I'm afraid to install it in my small child's room for fear it could cook or freeze them in the middle of the night.
            Response from MR COOL TeamSep 22, 2023
            We do apologize for this. Please email me directly at csmanager@mrcool.com. mrcool
              2 found this review helpful
              Very nice system, working better than expected
              • Verified Purchase
              Never received product
              Ordered a MrCool mini split on May 2. It was supposed to be ready to pick up in store on May 10. As of this date May 16 it has never been delivered to the store and no HD employee can tell me what happened to my nearly $3000 order. I think they have reordered it but I don’t know and have no way to confirm. As far as a product review I have to say I can’t tell you because HD hasn’t delivered. On this review they ask if you would like to leave a picture but I don’t know what to leave a picture of. Maybe a pic of my empty HVAC pad and my 230v disconnect that’s not connected to anything? IDK?
              Response from MR COOL TeamMay 16, 2024
              We do apologize for the inconvenience you have dealt with. If you are needing any assistance, please reach out to us at 270-366-0457 or support@mrcool.com. mrcool
                • Recommended
                • Verified Purchase
                • Verified Purchase
                This is superb option for the DIY'er! It's quiet, efficient, and easy to install. Worth the purchase!
                • Verified Purchase
                • Verified Purchase
                Showing 1-10 of 69 reviews

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