Name: MRCOOL 12,000 BTU DIY Ductless Mini-Split Smart Control Air Handler & Condenser, 115V
Brand: MRCOOL
SKU: 3E31L4QQ3ZLY
Price: 3885.99 CAD
Availability: InStock
Rating: 4.9 (27 reviews)

Walmart US Ecommerce Website

GENERAL MERCHANDISE

PHARMACY

GROCERIES

VUDU

SPARK

PHOTO

ADVERTISING

SAVINGS CATCHER

GIFTCARDS

INHOME

AFFILIATE

ONEAPP

LOTUS

HELP

SMART_REORDER

GROCERY

CONV_COMMERCE

Shop

The Home Event PIP banner dWeb Wk 14-15 2026

Buy Box Ad Container Module for Desktop

Custom HTML Module - About Klarna

Custom HTML Module - About SalesFinancing - Second update

You'll choose a plan at checkout.

#515357

I want delivery savings with Delivery Pass

#0071dc

NEW Fulfillment Tue Apr 15 2025 2:17 PM EDT

MTZ Team | Marquee 1 Ad | Item Page

MTZ Team | Marquee 2  Ad | Item Page

MTZ Team | Skyline Ad | Item Page

Other products of interest

MTZ Team | Sponsored Product Carousel - Item Page

More items to explore

MTZ Team | Sponsored Product Carousel - Item Page Broad 

NEW AddonServicesRedesign Fri Jul 18 2025 1:30 PM EDT

NEW AddToCart Mon Jul 14 2025 3:50 PM EDT

NEW AddToCart Tue Apr 15 2025 2:19 PM EDT

NEW BrandBoxDisplayAd Mon Jul 14 2025 9:14 PM EDT

NEW BrandLink Wed Apr 23 2025 12:07 AM EDT

NEW Breadcrumb Mon Apr 07 2025 8:23 PM EDT

Walmart Rewards Mastercard

NEW FinancingOptions Tue Dec 10 2024 3:32 PM EST

I want shipping & delivery savings with

NEW Fulfillment Mon Jul 14 2025 4:00 PM EDT

New Item Page - Nutrition Value Placeholder Module, Wednesday, February 08, 2023, 5:11:53:90 pm

New Item Page - Product Description Placeholder Module, Wednesday, February 08, 2023, 5:14:04:38 pm

New Item Page - Product Ingredients Placeholder Module, Friday, February 10, 2023, 10:34:23:79 am

New Item Page - Product Specifications Placeholder Module, Wednesday, February 08, 2023, 5:15:29:61 pm

New Item Page - Reviews Placeholder Module, Wednesday, March 22, 2023, 10:04:29:34 am

New Item Related Shelves Module, Thursday, June 15, 2023, 6:08:51:10 am

 Price Match Policy

Prices, terms, and availability may vary online, in stores, and in–app. If the advertised price is not shown here, inventory at the advertised price may now be sold out. Please see the other offers, if available, while quantities last. Some items may be available from Marketplace Sellers, who set their own prices, and are not eligible for price match. Items sold in store by Walmart may be eligible for a price match to online items shipped and sold by Walmart. For variable weight items, price shown is an estimated price only – you will be charged for the actual weight of the item. See our

NEW LegalPriceDisclaimer Mon Jul 14 2025 4:11 PM EDT

NEW LegalPriceDisclaimer Wed Apr 30 2025 12:13 AM EDT

NEW ListsAndRegistries Tue Apr 15 2025 4:50 PM EDT

NEW PaymentPlans Mon Jul 14 2025 4:15 PM EDT

NEW PaymentPlans Tue Apr 15 2025 1:31 PM EDT

NEW PriceInformation Tue Apr 15 2025 1:30 PM EDT

NEW ProductDescriptionPlaceholderATF Tue Jul 08 2025 11:41 PM EDT

NEW ProductFlags Thu Apr 10 2025 11:42 PM EDT

NEW ProductHighlightsPlaceholder Wed Jul 02 2025 12:43 AM EDT

NEW ProductImages Tue Apr 15 2025 2:13 PM EDT

NEW ProductName Tue Apr 15 2025 12:53 PM EDT

NEW ProductReturnPolicyDetails Tue Dec 10 2024 3:17 PM EST

NEW ProductReturnPolicy Mon Jul 14 2025 5:04 PM EDT

Return Policy

NEW ProductReturnPolicy Tue Apr 15 2025 2:28 PM EDT

NEW ProductStickyBuyBox Wed Jul 02 2025 12:55 AM EDT

NEW PromoDiscount Tue Apr 15 2025 6:53 PM EDT

New SellersSecondaryBuyBox Module, Tuesday, September 05, 2023, 4:02:21:76 pm

Shop Confidently

NEW ShopWithConfidence Thu Jan 15 2026 2:20 PM EST

NEW SocialProofMessage Tue Apr 15 2025 7:17 PM EDT

NEW SoldAndShippedBy Mon Jul 14 2025 5:04 PM EDT

NEW SoldAndShippedBy Tue Apr 15 2025 2:23 PM EDT

New!

More savings, less stress.

HSK_Subscribetosave_E_v2

NEW SubscriptionOptionsModule Tue Apr 15 2025 6:44 PM EDT

NEW SubscriptionPriceMessage Wed Apr 23 2025 6:48 PM EDT

NEW Variants Wed Apr 23 2025 11:01 PM EDT

[Sticky] BuyBoxAd Mon Aug 11 2025 3:59 AM EDT

[Sticky] PriceInformation Mon Jul 14 2025 4:03 PM EDT

Syndigo

#000000

Item Carousel - Rich Relevance 1

RR carousel

Item Carousel - Rich Relevance 2

RR carousel 2

Item Carousel - Rich Relevance 3

MRCOOL 12,000 BTU DIY Ductless Mini-Split Smart Control Air Handler & Condenser, 115V

<ul><li>Ductless 5th Generation DIY mini split air conditioner equipped with both cooling and heating capabilities, perfect for home, office, or commercial use</li><li>Features 12,000 BTUs and offers coverage up to 550 square feet</li><li>Combo heating and cooling unit is great as an HVAC for all-year-round use</li><li>Operates quietly and efficiently to keep you comfortable without high energy costs</li><li>Pre-charged, 25-foot Quick Connect line sets make installation a breeze and can be completed in just a few hours; No special tools required</li><li>In case of power outages, the unit automatically restarts at previous settings without manual intervention</li><li>Included smart HVAC controller module is compatible with Google Assistant and Amazon Alexa for easy comfort controls</li><li>Comes with a Gold Fin condenser, upgraded DIYPro cable, remote control, Smart HVAC controller module WiFi smart kit, and installation kit for a complete solution</li><li>Sleek design and neutral color blends into any interior space</li><li>Coverage: Up to 550 square feet</li><li>Power supply: 115 volt</li><li>Material: Plastic</li><li>Color: White</li><li>Dimensions (L x W x H): 16.54 x 36.22 x 27.56 inches</li><li>Weight: 65.48 pounds</li><li>Manufacturer warranty: 7-year warranty</li></ul>

Coverage Area

Cooling Rate

Brand

Energy Efficiency Rating

Volts

Heating Rate

Color

Assembled Product Dimensions (L x W x H)

Assembled Product Weight

Experience unparalleled comfort and convenience with the MRCOOL Ductless 12,000 BTU 23.5 SEER2 DIY Mini Split Air Handler & Condenser.

Designed with the DIY enthusiast in mind, this model eliminates the complexities of installation. You don't need any special tools, equipment, or expertise to set it up. Thanks to the pre-charged quick connect line sets, the installation process is streamlined, taking only a few hours to complete. Say goodbye to lengthy installations and hello to immediate comfort.

Versatility is another highlight of this mini split air conditioner. With both heating and cooling capabilities, this combo unit is great as an HVAC for all-year-round use. Whether you need to cool or heat a guest bedroom, office, or any space up to 550 square feet, this unit is up to the task. Plus, you can enjoy easy comfort controls using the included smart HVAC controller module that's compatible with Google Assistant and Amazon Alexa. Keep the handy remote control nearby, and the unit's Follow Me function will track the air temperature around you to ensure maximum comfort.

With its comprehensive system that includes a Gold Fin condenser, upgraded DIYPro cable, remote control, Smart HVAC controller module WiFi smart kit, and installation kit, the Ductless 12,000 BTU DIY Mini Split Air Handler & Condenser from MRCOOL is an excellent blend of performance, convenience, and efficiency.

Features

Air Conditioner Type

Manufacturer Part Number

Model

Recommended Use

Universal Product Code (UPC check)

Walmart Protection Plan

Protect it today, enjoy it for years - plan covers:<br><br>• Mechanical and electrical failures<br>• Breakdowns or failures from normal use<br>• 24/7 virtual tech support and Fast online claims backed by our 3-Business-Day Service Guarantee<br>• Includes 100% parts, labour and shipping - no deductibles

Notice for Quebec Customers<br><br>Protect it today, enjoy it for years.<br>Get low-cost, great value protection that goes beyond the manufacturer’s warranty, keeping your product covered when you need it most.<br><br>Protection covers:<br>• Mechanical and electrical failures.<br>• Defects in workmanship and materials from normal use.<br>• Fast, easy online claims backed by our 3-Business-Day Service Guarantee.<br>• 100% coverage for parts, labour and shipping - no deductibles or additional cost (pay $0 for approved claims).<br><br>How the Plan works:<br>1. Add a Plan to your order.<br>2. Plan details will be emailed to you after completing your purchase.<br>3. Start a claim online anytime or by phone.<br>We’ve got you covered up to the amount you paid, whether it’s a replacement, a refund or repairs.<br><br>You can cancel within 90 days of purchase for a hassle-free refund, according to your plan terms.<br>Limitations and exclusions apply. For more details, view the terms and conditions.

Get peace of mind for pennies a day!

Protect your purchase

fulfillment

title_shipToHome_date_free_delivery

<!DOCTYPE html>
<html>
   <head>
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link
         rel="stylesheet"
         href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
         />
   </head>
   <body>
      <div class="flex flex-column justify-center w-100 ph3 normal lh-copy pt1">
            <div class="tc">
               <img src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg">
               <h3>4 equal payments</h3>
               <h4 class="gray">Buy what you love and split the cost. It's that easy. </h4>
            </div>
            <ul>
            <b>
               <li>Add item(s) to your cart.</li>
               <li>
                  Add items to checkout and choose 
                  <image height="14" width="auto" src="https://i5.walmartimages.com/dfw/8822aef6-7abe/k2-_f4ee767f-a90a-4f70-be39-71e5d7b238a0.v1.jpg"></image>
               </li>
               <li>Enter your debit or credit card information. </li>
               <li>Your first payment is taken when the order is processed, and the remaining 3 are automatically taken every two weeks.</li>
            </b>
            </ul>
            <p class="gray">Please note that a higher initial payment may be required for some purchases. Pay later in 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4" target="_blank">terms</a> available here. For Quebec residents, these Pay Later 4 <a href="https://cdn.klarna.com/1.0/shared/content/legal/terms/0/en_ca/paylaterin4_quebec" target="_blank">terms</a> are applicable. </p>
      </div>
   </body>
</html>

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <link
      rel="stylesheet"
      href="https://unpkg.com/tachyons@4.12.0/css/tachyons.min.css"
    />
    <style>
      body,
      html {
        font-family: 'Everyday Sans', Arial, sans-serif;
      }

      li {
        margin-bottom: 0.5rem;
      }
    </style>
    <title>Walmart Installment Plan</title>
  </head>

  <body>
    <div class="col-container w-100 normal lh-copy pt1">
      <div class="col tc">
        <img
          width="35%"
          src="https://i5.walmartimages.com/dfw/8822aef6-971e/k2-_ed78b905-6394-4f88-a805-ab299123f2cc.v1.png"
          alt="Walmart Installment Plan"
        />

        <h3>Shop today, take time to pay</h3>
        <p>
          Split your purchase into 6 equal installments*  /
          <a
            href="https://i5.walmartimages.ca/dfw/8822aef6-d3f1/k2-_417f32f7-5074-45a6-b23d-5d5b3039e5b8.v1.pdf"
            target="_blank"
            rel="noopener noreferrer"
          >
            Terms and Conditions apply
          </a>
        </p>

        <h4>Here's how it works</h4>
        <ul class="tl">
          <li>Spend $199.99 or more on walmart.ca**</li>
          <li>Select Installment Plan at checkout</li>
          <li>
            Pay with your Walmart Rewards Mastercard. If you don't have one,
            click "Apply Now".
          </li>
        </ul>

        <h4>Details</h4>
        <p>
          Your qualifying purchase will be split into 6 equal monthly
          installments charged to your Walmart Rewards Mastercard. If your items
          ship on separate dates, each shipment will be converted to a separate
          Installment Plan.
        </p>

        <h4>Don't have a Walmart Rewards Mastercard?</h4>
        <p>
          Apply now and upon approval use your new account to enjoy the
          convenience of an Installment Plan on eligible purchases*. Purchased
          items must appear on a single receipt totaling $199.99 or more (before
          taxes, discounts, Walmart Reward Dollar™ redemptions, and
          shipping/delivery fees)∆
        </p>

        <p>
          *See
          <a
            href="https://www.walmart.ca/cp/shop/installment-plan/6000204340202?icid=Glass_PIP_FinancingOptions_WRMC_LearnHow_TermsConditions2_WM"
            target="_blank"
            rel="noopener noreferrer"
          >
            Terms and Conditions
          </a>
          for full details
        </p>

        <p>
          ** Eligible Installment Plan purchases are excluded from earning
          Walmart Reward Dollars™. Walmart Gift Cards and Walmart Reward
          Dollars™ cannot currently be used on Installment Plan transactions.
         
        </p>

        <p>
          ∆ All new credit card applications are subject to approval by
          Fairstone Bank of Canada.
        </p>

        <div class="pt3">
          <a
            href="https://www.walmart.ca/en/cp/installment-plan/6000204340202?icid=Glass_PIP_FinancingOptions_WRMC_LearnHow_ApplyNow_WM"
            target="_blank"
            rel="noopener noreferrer"
          >
            <button
              class="pv2 ph3 sans-serif bg-blue white bn no-underline br-pill f6 pointer b"
              type="button"
            >
              Apply now
            </button>
          </a>
        </div>
      </div>
    </div>
  </body>
</html>

The Mr Cool 18,000 BTU mini split system 5th generation system is working great. I was able to install it myself with the included step by step instructions. I also went with the Mr Cool line cover plates to protect the lines but to also give it a clean finished look.

Mr Cool 18000 BTU 5th generation mini split system

MRCOOL

I have had a super good experience with Mr Cool, from before questions on 'chat' to ordering and after installation questions. No doubt I would do it again.

My Thoughts, that's all....

Installed this in our fast food restaurant during a mini Midwest heat wave.  Our seating area was running 89 degrees during the day!!! And could only drop to about 82 overnight because of refrigeration and “leftover” heat from appliances.  Over the first night it dropped it all the way to 65 and was able to maintain 72 the next day with all the appliances on and people opening and closing the door all day!!!  I'm impressed.

Puts out the cold air!!!

This is the best investment I could have made living here in the south. I am very pleased with the features this unit was created with. I use the Sleep feature every night to save on the electric bill and  speaking of electric bill mine has dropped substantially since putting this unit in, very efficient. As long as you think through what you are about to do it installs beautifully. The Remote has every choice for your comfort that you could imagine. I am very pleased.

Couldn't Be Happier

I got this unit to cool and dehumidify my 1000 sq ft basement compromised of 5 rooms.
Mounted in the main living area. I leave the doors open to other rooms open. It handles this effortlessly.
The unit is whisper quiet. Followed the instructions, everything worked fine with no adjustments.
The instructions can be a little confusing, since some seem to be generic to other units and some seem specific to yours. I watched some YouTube videos from others which was very helpful, then averaged them all and took my path. The units are of excellent quality in my opinion. Give it an A+. The instructions, I would
give a C. I plan to get 2 more of these units in the future, for the upstairs.
( I have the 18,000 btu DIY) I feel the 12,000 would have been adequate for me, but wanted to be sure.
On a humid 90deg day I think I could cool down to 50deg. My basement is insulated though.

Wonderful unit

Great unit and OUTSTANDING Customer Service!
Bought this for a detached workshop and worked really well for first month +. Cooled the area down quickly and very straightforward DIY installation. Had a loss of cooling and enjoyed great communication from Customer Service who walked me through some potential problems and when none worked, another unit was sent no questions. New one was a quick install and works perfectly. Very happy! Thanks Mr. Cool!

Great unit and Outstanding Customer Service!

I purchased this 2 zone 18000 btu mini split system from HD 6 months ago. It was easy to install. I had a local HVAC contractor do the final inspections. They pressurized and evacuated the system to verify no leaks. Once that was complete the added the refrigerant and tested the system. Up until now I have been using it primarily for heat.  But summer is coming and it appears to work great on cool as well. My local contractor was impressed with the design of the unit and how easy it was to finish installation.  So far the unit has worked great.

Great value for the price

Just had this installed this weekend at our cabin I am very pleased with it's performance and quietness. I would have done the install myself but recently tore up my knee and needed help

Nice and Quiet

Easy installation and hook up however terminal block mis-wired from factory.  After a couple of discussions with tech support( who were great) got wiring corrected and unit fired right up.

Works great once factory mis-wiring corrected

I love this unit so far. It's been a life saver in our garage where we needed it. We kept buying normal fans before trying out this Mr Cool unit and are so glad we did. I had to lower it one star because I can't connect to it via the app.

Great unit!

MRCOOL 12,000 BTU DIY Ductless Mini-Split Smart Control Air Handler & Condenser, 115V

Shop Confidently

Financing options

Your data, your choice