Take Control of Your Comfort
Experience the MRCOOL DIY 5th Gen Multi-Zone Mini Split System — the simplest and most affordable way to enjoy powerful, energy-efficient heating and cooling without hiring a professional.
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Two Rooms, Perfect Comfort
Easily heat or cool two spaces — one up to 150 sq. ft. and another up to 350 sq. ft. — with independent temperature control for personalized comfort in every room.
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Truly DIY-Friendly
Skip the costly installation. No HVAC license or special tools needed — if you can use basic hand tools, you can install this system yourself.
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No-Hassle Setup
Pre-charged Quick-Connect® line sets make setup fast and easy. No refrigerant handling, no vacuuming — just connect, power on, and enjoy.
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Year-Round Energy Savings
With up to 23.9 SEER2 cooling efficiency and 10 HSPF2-4 heating performance, this system keeps you comfortable while saving on energy costs all year long.
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Built for Every Season
Reliable heating performance even in extreme cold — stays efficient down to -13°F to keep your home warm through winter.
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Strong Warranty Protection
Comes with a 7-Year Compressor Replacement and 5-Year Parts Coverage for long-term peace of mind.
Whether it’s the height of summer or the depths of winter, the MRCOOL DIY Mini Split keeps your home comfortable and your energy bills low. Smart. Simple. Affordable.
WHAT YOU GET:
MRCOOL DIY® 5th Gen 18,000 BTU 3-Zone Mini Split Condenser 230V (DIY-MULTI3-18HP230D-O)
MRCOOL DIY® 5th Gen 6,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-06-HP-WMAH-230D25-O)
MRCOOL DIY® 5th Gen 9,000 BTU Multi-Zone Mini Split Air Handler 230V (DIY-09-HP-WMAH-230D25-O)
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PRE-CHARGED LINE SETS x 2
- REMOTE CONTROL x 2
NOTE: Need different line set lengths? Click here to add them as add-ons.
SPECIFICATIONS:
| SYSTEM OVERVIEW |
| System Type |
Ductless Mini Split Air Conditioner & Heat Pump |
| Zones |
2 |
| Capacity |
Total: 15,000 BTU
Zone 1: 6,000 BTU
Zone 2: 9,000 BTU
|
| Coverage Area |
Total: 500 sq. ft.
Zone 1: 150 sq. ft.
Zone 2: 350 sq. ft.
|
| Refrigerant |
R-454B |
| Line Sets Included |
2 x Pre-Charged Line Sets |
| Warranty |
7 Years Compressor
5 Years Parts
|
| OUTDOOR UNIT (18K) x 1 |
| Model |
DIY-MULTI3-18HP230D-O |
| Dimensions |
35.04" W x 13.46" D x 26.50" H |
| Cooling Capacity |
18,000 BTU |
| SEER2 |
23.9 |
| EER2 |
13.0 |
| Heating Capacity |
18,000 BTU |
| HSPF2-4 |
10.0 |
| HSPF2-5 |
7.8 |
| Outdoor Noise Level |
60.0 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 |
16.0A |
| Max Fuse Breaker |
20.0A |
| Weight |
101.63 lbs |
| Certifications |
ENERGY STAR Certified
AHRI Certified
UL Listed
ETL Listed
|
| INDOOR UNIT (6K) x 1 |
| Model |
DIY-06-HP-WMAH-230D25-O |
| Dimensions |
31.57" W x 7.44" D x 11.69" H |
| Mounting Type |
Wall |
| Cooling Capacity |
6,000 BTU |
| Heating Capacity |
6,000 BTU |
| Coverage Area |
100 to 150 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.
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| Weight |
24.47 lbs |
| INDOOR UNIT (9K) x 1 |
| 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 |
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.
