MRCOOL DIY Mini Split – 21,000 BTU 2 Zone Ductless Air Conditioner and Heat Pump with 25 ft. Install Kit, DIYM218HPW01C07
$3,567.00 Original price was: $3,567.00.$2,854.00Current price is: $2,854.00.
- Fast, Free Shipping
- 30-Day Money-back Guarantee
- Payment Methods
Introducing the 4th Generation MRCOOL Mini Split, designed to efficiently cool and heat two distinct rooms with a comprehensive package that simplifies your climate control needs. This system includes the following components: a DIY 18,000 BTU Multi-Zone Condenser, a 9,000 BTU Wall Mounted Air Handler, a 12,000 BTU Wall Mounted Air Handler, two remote controls, and two 25 ft. installation kits. One of the standout features of this system is its DIY installation capability, allowing you to set it up yourself with ease. Enhanced Wi-Fi technology ensures that the installation process is not only straightforward but also provides the flexibility to place the units almost anywhere without the need for specialized tools or costly equipment.
Package Includes:
- MRCOOL DIY Multi-Zone 2-Zone Condenser, 4th Gen Series, DIY-MULTI2-18HP230C
- MRCOOL DIY 4th Generation 9K BTU Wall Mount Air Handler 230 Volt with Enhanced Wi-Fi, DIY-09-HP-WMAH-230C25
- MRCOOL DIY 12K BTU Ductless Mini Split Air Handler, Energy Star, 4th Gen, DIY-12-HP-WMAH-230C25
- MRCOOL 25 ft. 1/4 x 1/2 Lineset for DIY 9K, 12K & 18K Indoor, DIY25-1412 (x2)
It’s essential to note that if all air handlers operate simultaneously, their total BTU output will not exceed the condenser’s BTU rating, which means the combined output will always remain within the 18K BTU capacity of the condenser.
Condenser:
- Energy Efficient:Â This 2-Zone condenser, when paired with compatible MRCOOL air handlers, achieves an impressive 21 SEER efficiency rating.
- Works in All Environments: Capable of heating even in temperatures as low as -13°F.
- Lifetime Warranty:Â Enjoy peace of mind with the only condenser on the market offering a limited lifetime compressor warranty. Simply register with the MRCOOL Care Program to take advantage of this benefit!
Air Handler, 9K BTU, Quantity 1:
- Large Coverage Area:Â This handler effectively covers spaces up to 375 sq. ft.
- Versatile:Â Offers multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidification), and SLEEP.
- Easy to Control:Â Compatible with Apple and Android smartphones through the Smart HVAC app for convenient control.
- Convenient Installation:Â Its lightweight and compact design allows for easy installation on most interior walls using the included mounting plate.
Air Handler, 12K BTU, Quantity 1:
- Large Coverage Area:Â This handler effectively covers spaces up to 500 sq. ft.
- Versatile:Â Equipped with multiple operating modes, including COOL, HEAT, AUTO, DRY (dehumidification), and SLEEP.
- Easy to Control:Â Can be controlled via your Apple or Android smartphone using the Smart HVAC app.
- Convenient Installation:Â Designed for easy installation on most interior walls with the included mounting plate.
Line Set 25 ft., Quantity 2:
- This 25 ft. copper line set is essential for connecting the MRCOOL Condenser to the MRCOOL Air Handlers. For multi-zone systems, one line set is required for each indoor unit to ensure optimal functionality.
- Pre-Charged:Â Each line set comes pre-charged with the exact amount of R-410A refrigerant.
- DIY & Save Money:Â This allows for a cost-effective installation without the need for a certified technician.
Additional Line Sets & Coupler:
If the standard line set lengths do not meet your needs, additional line sets can be purchased. A coupler kit will also be required to connect two standard line sets together.
What Does This Package Include?
The package also contains installation-friendly tools, including a mounting plate for the air handlers, anchors, mounting plate screws, a remote control, optional remote control holder and fixing screw, MRCOOL Mini-Stat (optional), user manual for the Mini-Stat (optional), a magnetic ring (optional), a line-set adapter set (included with 4-zone & 5-zone systems only), batteries, an air freshening filter, a seal (for cooling and heating models), an Allen wrench, an installation and owner’s manual, a remote control manual, a Smart Controller Kit, a plastic wall sleeve, sound-deadening pads, a drain pipe, a cardboard mounting plate template, a Quick Connect Line Set (refrigerant pipe), insulation material, non-adhesive UV tape, a drain joint, and neoprene.
| 5 star | 0% | |
| 4 star | 0% | |
| 3 star | 0% | |
| 2 star | 0% | |
| 1 star | 0% |
Our best Products
-
Product Overview
 Covers 875 sq. ft.      Â
 DIY Installation
 Wall Mounted        Â
  Number of Zones: 2
 Voltage: 208 to 230     Â
 Outdoor Operating Temp (Cool): 5°F to 122°F
 Outdoor Operating Temp (Heat): 5°F to 75.2°F
-
What's Included
Air Handler

Condenser

Line Set

Wall Sleeve

Communication Wire

Remote Control
-
Specifications and Dimensions
Condenser Specifications Product Dimensions 35.04″W x 13.46″D x 26.50″H Cooling Capacity 18,000 BTU Heating Capacity 19,000 BTU Zone Capacity 2 Min Ambient Cool 5F ~ 122F Min Ambient Heat -13F ~ 75.2F SEER 21 EER 12.5 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 Condenser, 5 Years Parts Air Handler — 9K BTU Product Dimensions 31.57″W x 7.44″D x 11.69″H Mount Type Wall Cooling Capacity 9,000 BTU Heating Capacity 9,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
SleepAir Handler — 12K BTU Product Dimensions 31.57″W x 7.44″D x 11.69″H Mount Type Wall Cooling Capacity 12,000 BTU Heating Capacity 12,000 BTU Registered Warranty 5 Years Parts Modes Auto – auto selects from Cool, Heat or Fan-Only
Dry – dehumidify
Cool
Heat
Fan Only
Quiet
SleepLine Set Length 25 Feet Liquid Line Size 1/4″ Suction Line Size 1/2″ -
Coverage Area
When considering the appropriate cooling or heating solution for your space, it’s crucial to refer to our coverage chart to determine the required BTUs. Here’s a breakdown:
- Square Feet: 180-375 | BTU = 9K
- Square Feet: 376-500 | BTU = 12K
- Square Feet: 501-750 | BTU = 18K
- Square Feet: 751-1,000 | BTU = 24K
- Square Feet: 1,001-1,500 | BTU = 36K
Additional factors such as insulation, ceiling height, and the number of appliances in the room may impact performance. For personalized assistance, don’t hesitate to reach out to our experienced Sales Team.
-
-
Handling Line Sets
When installing your MRCOOL system, handle refrigerant lines carefully to ensure optimal performance and prevent damage.
Bending the Copper Lines: Maintain a minimum 4-inch bend radius and use smooth curves instead of sharp angles to protect the lines and ensure proper refrigerant flow.
Avoid Repeated Bending: Bending copper lines more than three times can harden and weaken them, increasing the risk of breakage. Handle with care and minimize adjustments.
For best results, use gradual bends and consult a licensed professional or our support team if needed.

























