Take control of your home’s comfort with the MRCOOL DIY 5th Gen Multi-Zone Mini Split System—the simplest, most affordable way to get powerful, energy-efficient heating and cooling without hiring a pro.
Comfort for Three Rooms
Easily heat or cool three separate spaces (350 sq. ft., 350 sq. ft., and 750 sq. ft.) with independent temperature control in each zone.
Truly DIY Installation
Skip the costly contractor fees. No HVAC license, no special equipment—if you can handle basic hand tools, you can install this system.
Fast, Mess-Free Setup
Pre-charged Quick-Connect® line sets eliminate refrigerant handling and vacuuming. Just connect the lines, mount the units, and you’re ready to go.
Energy-Smart Performance
Enjoy year-round savings with up to 23 SEER2 cooling efficiency and 9.9 HSPF2-4 heating performance.
Reliable in Every Season
Stay warm even in harsh winters—the system provides dependable heating down to -13°F.
Backed by a Strong Warranty
Includes a 7-Year Compressor Replacement Warranty and 5-Year Parts Coverage for peace of mind.
Whether it’s sweltering summer heat or frigid winter nights, the MRCOOL DIY Mini Split keeps your home comfortable—and your energy costs low. Smart. Simple. Affordable.
WHAT YOU GET:
MRCOOL DIY® 5th Gen 36,000 BTU 5-Zone Multi-Zone Mini Split Condenser 230V (DIY-MULTI5-36HP230D-O)
MRCOOL DIY® 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)
MRCOOL DIY® 5th Gen 18,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-18-HP-WMAH-230D25-O)
NOTE: Line sets are not included. Please choose your line set above.
SPECIFICATIONS:
| SYSTEM OVERVIEW |
| System Type |
Ductless Mini Split Air Conditioner & Heat Pump |
| Zones |
3 |
| Capacity |
Total: 36,000 BTU
Zone 1: 9,000 BTU
Zone 2: 9,000 BTU
Zone 3: 18,000 BTU
|
| Coverage Area |
Total: 1,450 sq. ft.
Zone 1: 350 sq. ft.
Zone 2: 350 sq. ft.
Zone 3: 750 sq. ft
|
| Refrigerant |
R-454B |
| Line Sets Included |
None - Choose Your Line Sets Above! |
| Warranty |
7 Years Compressor
5 Years Parts
|
| OUTDOOR UNIT (36K) x 1 |
| Model |
DIY-MULTI5-36HP230D-O |
| Dimensions |
37.24" W x 16.14" D x 31.89" H |
| Cooling Capacity |
34,000 BTU |
| SEER2 |
23.0 |
| EER2 |
12.0 |
| Heating Capacity |
36,000 BTU |
| HSPF2-4 |
9.9 |
| HSPF2-5 |
7.5 |
| Outdoor Noise Level |
64.0 dB(A) |
| Outdoor Operating Temperature |
Cooling: -13°F – 122°F
Heating: -13°F – 75°F
|
| Voltage |
208–230V |
| Phase |
1 |
| Cycle |
60Hz |
| Min Circuit Ampacity |
30.5A |
| Max Fuse Breaker |
35.0A |
| Weight |
169.75 lbs |
| Certifications |
ENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed
|
| INDOOR UNIT (9K) x 2 |
| Model |
DIY-09-HP-WMAH-230D25-O |
| Dimensions |
31.57" W x 7.44" D x 11.69" H |
| Mounting Type |
Wall |
| Cooling Capacity |
9,000 BTU |
| Heating Capacity |
9,000 BTU |
| Coverage Area |
151 to 350 sq. ft. |
| Liquid Line Size |
1/4" |
| Suction Line Size |
3/8" |
| Modes |
Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
|
| Weight |
24.47 lbs |
| INDOOR UNIT (18K) x 1 |
| Model |
DIY-18-HP-WMAH-230D25-O |
| Dimensions |
42.52" W x 8.9" D x 13.19" H |
| Mounting Type |
Wall |
| Cooling Capacity |
18,000 BTU |
| Heating Capacity |
18,000 BTU |
| Coverage Area |
501 to 750 sq. ft. |
| Liquid Line Size |
1/4" |
| Suction Line Size |
1/2" |
| Modes |
Auto Mode: Automatically selects heating or cooling based on the room's temperature.
Cool Mode: Lowers the room temperature to your desired setting.
Heat Mode: Raises the room temperature to your desired setting.
Fan-Only Mode: Circulates air without heating or cooling.
Dry Mode (Dehumidification): Reduces humidity levels in the room.
Sleep Mode: Gradually adjusts temperature settings for comfortable sleep and energy savings.
|
| Weight |
35.49 lbs |
GUIDE:
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.
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.
Restocking Fee
Please note, a 35% restocking fee will be applied to all approved returns.
Non-Returnable Items
Accessories including lineguards, wall mounts, linesets, couplers, and similar items are not eligible for return.
