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Pre-Order the new 5th Gen Series!

MRCOOL DIY Mini Split - 30,000 BTU 2 Zone Ceiling Cassette Ductless Air Conditioner and Heat Pump with 25 and 35 ft. Install Kit, DIYM236HPC00C08

5.0 6 reviews
Model: DIYM236HPC00C08
$7,228.20
$7,228.20 $10,326.00
-30%
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Pre-Order Now! Estimated Shipping: June 2025. Be the first to own the brand-new 5th Gen Series.

$7,228.20
$7,228.20 $10,326.00

Product Overview

  • Zones: 2

  • DIY Installation

  • Pre-Charged Line Sets

  • Voltage: 208-230V

  • Outdoor Operating Temp (Cool): 5°F to 122°F

  • Outdoor Operating Temp (Heat): -13°F to 75.2°F

What's Included

  • MRCOOL DIY Multi-Zone 4-Zone 36K BTU Condenser, 4th Gen Series, DIY-MULTI4-36HP230C MRCOOL DIY Multi-Zone 4-Zone 36K BTU Condenser, 4th Gen Series, DIY-MULTI4-36HP230C

    36K BTU Condenser

    Quantity: 1
    Model: DIY-MULTI4-36HP230C
  • MRCOOL DIY Series 12K BTU Ceiling Cassette, DIYCASSETTE12HP-230C25 MRCOOL DIY Series 12K BTU Ceiling Cassette, DIYCASSETTE12HP-230C25

    12K BTU Air Handler

    Quantity: 1
    Model: DIYCASSETTE12HP-230C25
  • MRCOOL DIY Series 18K BTU Ceiling Cassette, DIYCASSETTE18HP-230C25 MRCOOL DIY Series 18K BTU Ceiling Cassette, DIYCASSETTE18HP-230C25

    18K BTU Air Handler

    Quantity: 1
    Model: DIYCASSETTE18HP-230C25
  • MRCOOL 25ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412 MRCOOL 25ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412

    25 ft. 1/4 x 1/2 Line Set

    Quantity: 1
    Model: DIY25-1412
  • MRCOOL DIY 35ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C MRCOOL DIY 35ft 1/4 x 1/2 Pre-Charged Lineset for DIY 9K, 12K & 18K Indoor, 4th Generation, DIY35-1412C

    35 ft. 1/4 x 1/2 Line Set

    Quantity: 1
    Model: DIY35-1412C

System also includes Communication Wires, Drain Hose Pipes, Wall Sleeves, Remote Controls and Wifi Dongles.

Better Together

System Details

DESCRIPTION

Step into the future of comfort with MRCOOL’s innovative 4th Gen DIY Mini Split, trusted by thousands of satisfied customers! Experience unmatched climate control across your rooms, all with effortless convenience. Perfect for your home, garage, workshop, and beyond. The best part? You can handle the installation yourself!

Condenser (36K BTU)

  • Innovative Installation: Experience seamless installation with MRCOOL’s patented Pre-Charged Quick Connect Line Sets, ensuring a hassle-free process without needing a technician.
  • Corrosion Resistance: Shield your system from coastal elements with the robust Gold Fin® condenser coating.
  • Energy Efficiency: Save on energy with an impressive 21.5 SEER2 and 8.5 HSPF-5 rating.
  • Extreme Performance: Heat efficiently even when temperatures plunge to -13°F.
  • Reliable Warranty: Enjoy peace of mind with a 7-year compressor warranty and a 5-year parts warranty.

Air Handler (12K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 12k BTU Ceiling Cassette fits easily between 16” ceiling joists for a modern, low-profile look.
  • Multi-Zone Compatibility: Operates smoothly with the DIY 4th gen MZ system to support multi-zone configurations and remove the need for ductwork.
  • Ideal Coverage Area: Designed to efficiently heat or cool spaces between 376 and 500 square feet.
  • Remote Control Access: Gain full control of your unit with the SmartHVAC app, providing convenience from virtually anywhere.
  • Effortless Installation: Installation is a breeze with MRCOOL’s Pre-Charged Quick Connect Line Set, allowing a fast and simple setup process.

Air Handler (18K BTU)

  • Compact Ceiling Installation: The MRCOOL DIY Series OuttaSight 18k BTU Ceiling Cassette fits neatly within 16” ceiling joists for a clean and unobtrusive appearance.
  • Multi-Zone Compatibility: Built to work with the DIY 4th gen MZ system for multi-zone functionality and ductless operation.
  • Ideal Coverage Area: Capable of managing heating and cooling needs in spaces of 501 to 750 square feet with ease.
  • Remote Control Access: Take full command using the SmartHVAC app, ensuring convenience whether at home or away.
  • Effortless Installation: With MRCOOL’s Pre-Charged Quick Connect Line Set, setting up the unit is fast and hassle-free—no professional tools required.

Line Set

  • Optimized System Performance: The advanced copper line set connects the MRCOOL Condenser to MRCOOL Air Handlers, enhancing performance for your Multi-Zone system. One line set per indoor unit ensures seamless operation.
  • Pre-Charged Convenience: Designed for simplicity, these line sets are pre-filled with R-410A refrigerant, making installation quick and hassle-free.
  • DIY and Cost Savings: Skip the expensive technician fees with our user-friendly design. Install confidently and save money without compromising quality.
  • Extended Flexibility: Need additional reach? Our coupler kit allows you to effortlessly connect two standard line sets, ensuring unlimited cooling and heating coverage.

ELECTRICAL REQUIREMENTS

  • Model: DIY-MULTI4-36HP230C
  • Type: 36K BTU Condenser
  • BTU: 36,000 BTU
  • Power Supply: 208-230V/60 Hz/1ph
  • Minimum Circuit (Disconnect): 27.0 A
  • Maximum Fuse (Breaker): 45.0 A

SPECIFICATIONS & DIMENSIONS

  • Condenser
  • Product Dimensions: 37.24"W x 16.14"D x 31.89"H
  • Cooling Capacity: 36,000 BTU
  • Heating Capacity: 36,000 BTU
  • Zone Capacity: Up to 4
  • Cool Mode - Outdoor Operating Temperature Range: 5°F ~ 122°F
  • Heat Mode - Outdoor Operating Temperature Range: -13°F ~ 75.2°F
  • SEER2: 21.5
  • EER2: 10.5
  • HSPF2: 8.8
  • Voltage: Requires a minimum of 208V-230V/60HZ/18-25A (please check your home meets this electrical requirement prior to purchase)
  • Registered Warranty: 7 Years Replacement on Compressor, 5 Years Parts
  • Air Handler 12K BTU
  • Product Dimensions: 50.31"W x 13.19"D x 8.98"H
  • Mount Type: Ceiling Cassette
  • Cooling Capacity: 12,000 BTU
  • Heating Capacity: 12,000 BTU
  • Registered Warranty: 5 Years Parts
  • Modes: Auto (Auto selects Cool, Heat or Fan-Only) // Cool // Heat // Dry // Fan Only // Sleep
  • Air Handler 18K BTU
  • Product Dimensions: 50.31"W x 13.19"D x 8.98"H
  • Mount Type: Ceiling Cassette
  • Cooling Capacity: 18,000 BTU
  • Heating Capacity: 18,000 BTU
  • Registered Warranty: 5 Years Parts
  • Modes: Auto (Auto selects Cool, Heat or Fan-Only) // Cool // Heat // Dry // Fan Only // Sleep
  • Line Set
  • Length: 25 feet
  • Liquid Line Size: 1/4"
  • Suction Line Size: 1/2"
  • Line Set
  • Length: 35 feet
  • Liquid Line Size: 1/4"
  • Suction Line Size: 1/2"

WHAT'S INCLUDED

  • 1 x 36K BTU Condenser
  • 1 x 12K BTU Air Handler
  • 1 x 18K BTU Air Handler
  • 1 x 25 ft. 1/4 x 1/2 Line Set
  • 1 x 35 ft. 1/4 x 1/2 Line Set

INSTALLATION & GUIDES

COVERAGE AREA

Please refer to this coverage chart to determine how many BTUs are required for the area you would like to cool or heat.

BTU  Square Feet
9,000 BTU 180 - 375 Sq Ft.
12,000 BTU 376 - 500 Sq Ft.
18,000 BTU 501 - 750 Sq Ft.
24,000 BTU 751 - 1,000 Sq Ft.
36,000 BTU 1,001 - 1,500 Sq Ft.

Some additional factors may impact performance such as insulation, ceiling height and the number of appliances in the room. For assistance, contact our Product Experts.

SHIPPING POLICY

Free Curbside Delivery
MRCOOL orders include free curbside delivery via FedEx Ground, FedEx Freight, or the most trusted carrier available. Please note that delivery is to the curbside only - be sure to arrange for assistance if needed, as the carrier will not bring items inside your home.

Tracking & Delivery Scheduling
In most cases, you will receive tracking details 3-5 business days after you place your order. When the tracking number is sent, please allow 1-2 business days for the tracking number to populate details.

See our full Shipping Policy here.

RETURN POLICY

MRCOOL returns must be requested within 30 days of your delivery date. We are unable to process returns submitted after this period. Products must be unused, uninstalled, and in their original packaging, including the box and pallet, to qualify for a return.

Please note, a 35% restocking fee will be applied to all approved returns.

See our full Return Policy here.

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Customer Reviews

Based on 6 reviews
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Debralee Chowning
"Mr Cool Mini Split: Unmatched Comfort and Efficiency!"

I recently purchased the Mr Cool Mini Split System, and I'm thrilled with its performance! Premium Home Source was excellent with communication and delivery. The installation was a breeze, and the system quickly transformed my space into a comfortable oasis. The sleek design and quiet operation exceeded my expectations. It's energy-efficient and provides precise temperature control. I highly recommend the Mr Cool Mini Split for anyone looking for a reliable and efficient heating/cooling solution.

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Brian Sharpe
Mr Cool DIY 18k Heat Pump 4th Gen

Ordered the system off the website, spoke to a couple agents on the phone with some questions to make sure I was getting the correct system for my needs, everyone was very nice and helpful. System arrived in about a week and everything was packaged up nicely on a pallet. My dad and myself installed this system with minimal issues. Was a super easy setup and within about 2 hours we had it up and running. Warms the house nicely and we are about to buy another system for our Airbnb.

Brian

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Joseph Dauphinais
DIY ceiling cassette.

Very detailed instructions. Had no problems installing. Keeps the whole 1st floor warm. Very impressed.

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Adam P
Almost Too Good to Be True

These Mr Cool units are fantastic! I purchased the first unit to offset some of my propane furnace heating costs with the left over solar credits I had. Once I put the one unit in, I knew immediately that this was the way to go. These things are quiet and super efficient. The instructions are easy to follow for anyone handy looking to save alot of money. The app works great and easy to configure. Premium Home Source was a pleasure to work with as well. Quick responses and professional. I definitely recommend, don't hesitate if you're on the fence about it.

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Lyndy Little
The order/delivery process

Premium Home Source coordinated our purchase and delivery perfectly.

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