MRCOOL DIY 5th Gen Mini Split - 2-Zone 27,000 BTU Ductless Air Conditioner and Heat Pump Condenser with 12K + 9K Wall Mount Air Handlers

MRCOOLSKU: DIY5-2Z-27HP-12K9K
49 reviews

Price:
Sale price$3,321.00 Regular price$4,547.00SAVE 26%
!Choose Line Set Lengths0 of 2
Each air handler connects to the condenser with its own refrigerant line set. Pick a length for all 2 zones.
Zone 1 · 12K Air Handler
Zone 2 · 9K Air Handler
This package includes — tap a piece for full details
In Stock
Estimated delivery: Nov 19th-28th
Free Curbside Delivery — carrier calls to schedule

Free Curbside Delivery

Included on every order
Ships free by freight carrier. Your order leaves the warehouse tracked, on a palletized freight truck.
The carrier calls ahead. You'll schedule a delivery window that works for you before the truck heads out.
Delivered to the curb. The item is placed at the end of your driveway. Moving it inside is your responsibility, so plan to have help on hand for heavy pieces.
Before you sign: inspect the packaging for damage. Signing the delivery receipt confirms it arrived in good condition.
In-Home Protection Plan
Home Outlet Direct + CPS

Add an Extended Protection Plan by CPS and Enjoy Peace of Mind!

Protection Plan Benefits:
  • Covers 100% parts and labor for product defects in materials and workmanship
  • Replacement of product if it cannot be repaired
  • No deductibles
  • Protection from dust, heat and internal humidity damage
  • Damage caused by power surges
  • In-home service
Full Coverage Details
No deductibles
International coverage
Easy claims process
The 30-second rundown
27,000 BTUHeating + Cooling
DIYInstallation
23 SEER2Efficiency
875 Sq. Ft.Coverage (estimate)
2-Zone
208/230VPower
Energy Star Certified

What's in this package

Every piece below is included in your system price — matched to optimize efficiency, power and compatibility. Tap a piece to see its full description, specs and manuals.

Piece 1 of 3 — MINI SPLIT CONDENSER
In Stock · SKU DIY-MULTI4-27HP230D-O

If you’re in need of comfort, our new 5th Generation MRCOOL® DIY® 27k BTU Multi-Zone Ductless Mini Split Condenser is the perfect solution! The acronym in the name is true - you can install this system on your own, without the assistance of an HVAC professional! You’ll save money in more ways than one, too, due to the incredible efficiency of this system, which attains a SEER2 rating of 23 and a HSPF2-4 rating of 9.5.

This condenser in particular is able to support up to 4 air handlers, meaning it can provide heat and air conditioning to four separate spaces equalling a total of 1,000 to 1,200 square feet. This system is unique because it utilizes special, patented Quick Connect® line sets that are pre-charged with R-454B, which is a newer refrigerant that allows the system to be even more sustainable and efficient than its previous generation. These line sets essentially link to the fittings of the condenser and the air handler, making the installation process a breeze.

Once installed, this condenser will be able to do more than you expect! Our SmartHVAC app gives you the opportunity to integrate the system with your phone and Amazon Alexa or Google Home, which will let you control your comfort using just your voice. The app also gives you the ability to customize your comfort with a range of features, from setting schedules to monitoring the system’s energy use. You deserve to have your comfort meet your standards, and this unit can do that for you. Should something happen to the system, we’ve got your back. The DIY® series boasts one of the foremost warranties in the HVAC industry - a 5 year parts warranty, a 7 year compressor warranty, and a Limited Lifetime Replacement warranty if you enroll in the MRCOOL® Care Program. Get the best for your home and install a DIY®!

Features

  • Intertek listed 5031495
  • Easy DIY installation
  • Future-proof your investment with the included DIYPro® cable, eliminating the need for electrical conduit.
  • Keep the included remote close by, and MRCOOL DIY®'s Follow Me® function will track the air temperature around you to ensure maximum comfort.
  • The MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

MRCOOL Mini Split BTU Guide

Drawn to scale — 1 square = 2 × 2 ft
36K BTU
24K BTU
18K BTU
12K BTU
9K BTU
6K BTU
6K BTU up to 250 sq ft · Small bedroom, office
9K BTU up to 375 sq ft · Bedroom, home office
12K BTU up to 500 sq ft · Large bedroom, den
18K BTU up to 750 sq ft · Living room, master suite
24K BTU up to 1000 sq ft · Open living area
36K BTU up to 1500 sq ft · Great room, small home
Between sizes? Round up. A slightly larger unit runs efficiently at partial load — an undersized one runs constantly.
Shipping
  • Free Shipping on all orders.
  • Large Appliances: Ship via Curbside Delivery — the carrier delivers to your property but not inside your home.
  • Small Items: Ship via standard ground delivery (FedEx or similar), such as small appliances, range hoods, sinks, faucets, and accessories.
Full shipping policy
Returns
  • 30-Day Return Policy: Return requests must be submitted within 30 days of your delivery date. We cannot process returns after this period.
  • Return Requirements: Products must be unused, uninstalled, and in their original packaging (including box and pallet) to qualify.
  • Restocking Fee: A restocking fee may apply and varies by brand.
Full returns policy
Authorized MRCOOL Dealer
Full manufacturer warranty on every MRCOOL product we sell.

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MRCOOL Reviews

Verified reviews from across all MRCOOL products · collected by Judge.me

  • 5 stars: 43 (88%)
  • 4 stars: 5 (10%)
  • 3 stars: 1 (2%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
J
Jim M. (Los Angeles, CA)
Easy to install and working great.

I needed to replace another unit that a previous contractor didn't do any part of that installation correctly, and the condensation line was leaking inside the house, running down the wall since that installation!! The indoor coil was 1-1/2" out of level, the line set wasn't wrapped, the electrical was tapped into the same circuit as the garage light and outlets...it was a mess.

It took me more time to demo the old unit out than to install the one I bought from you.

Thank you.

B
Bill (Philadelphia, PA)
Very pleased.

Very pleased with the price, delivery, ease of installation, and above all during this heatwave it is working excellently.

N
Natalie N. (San Jose, CA)
Perfect for our needs!

I ordered a 2 zone unit for the bedrooms in our home. It took a few months to arrive (manufacturer issue, nothing to do with HOD, and we were contacted on more than one occasion with an order update which was much appreciated!), but when it did arrive was very easy to install. Both the heat and AC function work perfectly, and our family is very happy!

R
Robert W. (Marietta, GA)
Decent Company

I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.

P
Peter K. (Phoenix, AZ)
Pretty Easy Install and Works Great!

Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!

W
Wes D. (Chicago, IL)
Installed and working great

Installed with ceiling cassettes... Quiet and keeping us cool so far !

J
Joseph S.F. (Massapequa, NY)
G-PA DIY

I install the units without any helping hand. Units are working as they should. I was expecting for the hot air to be hotter than it feels. It might just be me. Otherwise, I am happy with the purchase.

T
Todd N. (Boone, NC)
I’d recommend

Time for item to ship could be faster. Pricing was okay. Product was as advertised and arrived in good condition.

J
James (Williamston, SC)
New HVAC for my house

So, I bought this to replace my old broken HVAC in my house as I was tired of using window units for the last 7 plus years. This unit was perfect and was very easy to install. I already knew the cooling performance was excellent as I had already installed this exact same one on my mother's house last year. If I could give more stars I would.

J
Justin F. (Oak Grove, KY)
Couldn't be happier

Arrived quickly in perfect condition and was surprisingly easy to install. I had no idea how inefficient our old unit was until I installed this Mr. Cool unit. With ambient temps above 20F we're getting 30F splits between intake and registers. Super impressed with this affordable heat pump.

L
Leo G. (Dallas, TX)
The "COOLEST" unit!

Sure! Here’s a **funny, pun-filled review** you could post online about a **Mr. Cool mini split** — you can tweak it depending on whether you want it to sound like a casual customer or a witty product review.

---

😎 “Mr. Cool? More Like Mr. Ice-olation Station!”

Check this guy out. Mr. Cool. He doesn’t talk back, he keeps his chill no matter how heated things get, and best of all, he "splits" his time evenly between cooling and heating. Talk about a balanced relationship! Installation was a breeze (literally). I expected drama, sweat, and a few choice but once he moved in, the temperature dropped faster than my motivation to leave the house.
Now my living room is so cool, penguins are sending me roommate requests. My electric bill? It’s giving "light chill, not frostbite."
Whether it’s summer meltdown season or winter’s silent treatment, Mr. Cool always knows how to vent properly. I’ve never had such a fan-tastic relationship before. So yeah, call me biased, but this unit really "blew me away".

R
Robert W. (Golden Valley, AZ)
Incredibly happy

Since I have never installed a unit like this, I was amazed at how easy it was, the most difficult part was, cutting the hole in the wall. My wife and I are also incredibly amazed at how quiet this system is.

C
Chris S. (Denver, CO)
Good product great customer service

Very good customer service will be buying from them again

M
Marinus R.
Install

Was easy to install. Directions were easy to follow and unit is working great

C
Craig J. (Albany, NY)
Constant Spam Warranty Calls

I would buy elsewhere. Unit works pretty well. We get phone calls every couple weeks trying to sell us a warranty. This website sold our information to them. They made a few dollars, and we pay for it every 2 weeks getting call after call trying to sell a warranty.

C
Charles S. (Los Angeles, CA)
Is this the best way?

In the last few years I have installed four 12000 btu Mr Cool units and one of the 27000 btu units with two 12000 btu air handlers. I am happy with the performance of all of them, but if I had it to do over again, I would install two of the 12000 btu units instead of the 27000 btu unit. The price would be approximately the same, but the smaller units are much easier to deal with. The fact that the 12000 btu units require only 120 v power means that you can often make use of existing wiring rather than run a new line. The 27000 unit is quite heavy. It is much more difficult to move around . I didn't realize that fluid is pumped to both units even if only one of them is turned on. This results in confusing readings on the app and it probably results in reduced efficiency. I many cases using two smaller units rather than a large one would allow use of shorter lines. I appreciate that fact that HOD makes it easy to order units with appropriate line lengths rather than being forced to use standard sizes that may be longer than necessary.

T
THOMAS G. (Brooksville, FL)
Four Ton VersaPro Insatll

Instead of waiting for my 18-year-old heat pump to stop operating in the middle of summer here in Florida, I decided to get the McCool 4 ton Versa before my old system got me. So, my Mr Cool arrived a few days after I ordered it and kept it in the garage until the weather cooled off since the Versa air handler was to be installed in the garage attic. However in the meantime, I ran the pressurized line set, purchased a few additional tools needed for the installation and hit the ground running when we got our first cool days. I took the old system offline by capturing the r22 freon in the old heat pump condenser, cut the lines and first installed with a little help, the Mr Cool outside condenser, the only thing that really required help. The attic air handler required me to pull the fan and the coil that lightened up the unit considerably, also allowing me to navigate it into the attic where I reinstalled both the fan and coil. Since the infrastructure was there from the old unit, it just required me to look up the existing AC and thermostat, mate the ductwork to the air handler and hook up the line set. I just followed the instructions and it all went very smoothly.

Finally, I hit the thermostat on switch and within a few minutes, had heat just in time for a 40° evening. Woke up to a cozy warm house for a change. Am very satisfied with my ducted Versa system and just in time because pulling apart the old system, it was very clear it wasn't going to make it another year or a week and feel great for saving thousands of dollars that I would have spent for a lesser system than this high-tech heat pump inverter system from MrCool.

R
Richard H. (Lancaster, PA)
Great unit!

Overall Great Unit and working with HOD was simple. Unit arrived on time and in good shape.

J
Jim H. (Colbert, WA)
Mr Cool - 36000 4 zone

Install was as stated and works good but struggles at heating house when temperatures are below freezing. I am concerned what will happen once we get to 20 and lower. Over all I like the product but they should be more honest about heating at low temperatures.

T
Thomas G. (Brooksville, FL)
Four Ton VersaPro

Received my 4 Ton VersaPro as it was stated, no bends or scratches and the trucking company placed it in my garage. It will be replacing my existing 3.5 ton Rheem heat pump so all the infrastructure already exists like the duct work, electric but will be replacing the existing line set with the pre-charged lineset so an HVAC tech won't be required assuming all goes as planned. Myself and a friend plan to install towards the end of October, waiting for cooler days here in Florida since it's an attic air handler install. Should have it completed in one or two days since I have done some of the preliminaries. Will update

R
Richard G. (Chapel Hill, TN)
Great prodiuct

Fast delivery and great customer service . Would purchase from company again

P
Philip V.
Great system

Not great installation instructions, but great product

D
David C. (Longmont, CO)
Mr Cool Hyper Heat Pump and Gas Furnace combination works incredibly well.

I recently removed my old gas furnace and replaced it with the MRCOOL Hyper Heat - Central Heat Pump & Gas Furnace Split System - 24K BTU, 96% AFUE - 17.5" Cabinet - Multi-Position. This system was very straight forward and simple to install. I live in Colorado and have been enjoying the cool all summer. I tested the heat function but have not had a cold season yet, with my new system. I'm sure it will heat as good as it cools.

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