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MRCOOL DIY 5th Gen 18,000 BTU 2-Zone Ductless Mini Split Air Conditioner & Heat Pump | 6k+12k Wall Mounted | Covers 2 Rooms, 700 Sq Ft

SKU: DIYM218HPW02D06N/AAvailability : In StockIn StockOut of stock

Please select the appropriate line set lengths to complete your bundle.

Note: Line sets connect the indoor and outdoor units together, where the outdoor unit (condenser) supplies the indoor unit (air handler) with refrigerant.
Will not ship until [19041994]
Price:

$3,229.00

Extra 5% Off $2,500+ Automatically Applied at Checkout
$3,229.00
Out of stock

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What Size MRCOOL Mini Split Do I Need?

MRCOOL Mini Split Line Set Length Limits

MRCOOL DIY 18K BTU 2 Zone Mini Split System | Heat & Cool Two Rooms 700 Sq. Ft.

Take control of your home’s comfort with the MRCOOL DIY 5th Gen Multi-Zone System. This complete two-zone mini-split system allows you to independently heat and cool two different-sized rooms—200 sq. ft. and 500 sq. ft.—from a single, energy-efficient outdoor unit. Designed for true do-it-yourself installation, it requires no special HVAC tools or professional help. If you can use basic hand tools, you can install this system and enjoy professional-grade comfort in a weekend.


Key Benefits:

✅ Dual-Zone Flexibility – Independently control temperatures in two rooms: one 200 sq. ft. space (like a bedroom or office) and one 500 sq. ft. space (like a living room or master suite).

✅ Easy DIY Installation – No HVAC license or refrigerant handling needed. The system includes pre-charged QuickConnect® linesets for simple, vacuum-free connections.

✅ High Energy Efficiency – Rated at 23.9 SEER2 for cooling and 10 HSPF2 for heating, saving you money year-round on energy bills.

✅ All-Season Performance – Provides reliable heat even in extreme cold, working down to -13°F.

✅ Complete System in One Box – Includes outdoor condenser, two indoor air handlers (sized for each room), linesets, cables, and remotes.

✅ Strong Warranty – Backed by a 7-year compressor warranty and 5-year parts warranty.


What’s Included:

  • 1 Outdoor Condenser Unit (Multi-Zone)

  • 2 Wall-Mounted Indoor Air Handlers (sized for 200 sq. ft. and 500 sq. ft.)

  • 2 Pre-Charged QuickConnect® Linesets

  • 2 DIYPRO® Cables

  • 2 Wireless Remotes


Technical Specifications:

  • System Type: Dual-Zone Ductless Heat Pump

  • Total Capacity: 18,000 BTU 

  • Coverage: 200 sq. ft. + 500 sq. ft. (700 sq. ft. total)

  • Cooling Efficiency: 23.9 SEER2

  • Heating Efficiency: 10 HSPF2

  • Low-Temp Heating: Effective down to -13°F

  • Refrigerant: R-454B (included in pre-charged linesets)

  • Electrical: 230V

  • Warranty: 7-year compressor, 5-year parts


Why Choose This System?

This MRCOOL DIY Multi-Zone System is ideal for homeowners who want to heat and cool two different-sized rooms independently without the cost of two separate systems or a professional installer. It’s energy-efficient, reliable in all seasons, and gives you complete control over your comfort.


Perfect For:

  • A small bedroom (200 sq. ft.) + a large living room (500 sq. ft.)

  • Home office + master bedroom

  • Studio apartment + separate living area

  • Garage + adjacent workshop or lounge


Ready to install your own two-zone comfort system?
Order the MRCOOL DIY Multi-Zone Mini Split today and enjoy customized heating and cooling in two rooms—installed by you, for you.

Condenser

ModelDIY-MULTI3-18HP230D-O
UPC840255587617
AHRI Number216032588
SeriesDIY
Product Height (in)26.5
Product Width (in)35
Product Length (in)13.5
Avg Coverage AreaLess than 500 Sq Ft
Cooling Capacity1.5 Ton
Primary Heating Capacity15,001 - 20,000 BTU
Cooling Efficiency (SEER2)23.9
Heat Pump Efficiency (HSPF2)10
CompressorInverter
RefrigerantR-454b
Electrical Phase1-Phase
Voltage240
Max Overcurrent Protection20 amps
Max Lineset Length (FT)123
Line Set Connection TypeQuick Connect
Liquid Line Size1/4 inch
Suction Line Size3/8 inch
Weight (lbs)101.600000
System Application TypeDuctless Split Systems
Warranty5 Year Parts, 7 Year Compressor
Region CompatibilityNationwide
California Residentssee Prop 65 WARNING


Air Handler - 6K Unit

ModelDIY-06-HP-WMAH-230D25-O
UPC840255587013
SeriesDIY
ConfigurationWall Mounted
Product Height (in)11.7
Product Width (in)31.6
Product Length (in)7.4
Air Flow DirectionHorizontal
Blower MotorVariable Speed
Cooling CapacityLess than 1 Ton (Approx. 6,000 BTU)
Electrical Phase1-Phase
Voltage240
Line Set Connection TypeQuick Connect
Liquid Line Size1/4 inch
Suction Line Size3/8 inch
Weight (lbs)24.500000
RefrigerantR-454b
System Application TypeDuctless Split Systems
Special FeaturesAlexa, Google Assistant, WiFi Capable
WarrantyLifetime, 5 Year Parts, 7 Year Compressor
California Residentssee Prop 65 WARNING


Air Handler - 12K Unit

ModelDIY-12-HP-WMAH-230D25-O
UPC840255587037
SeriesDIY
ConfigurationWall Mounted
Product Height (in)11.7
Product Width (in)31.6
Product Length (in)7.4
Air Flow DirectionHorizontal
Blower MotorVariable Speed
Cooling Capacity1 Ton (Approx. 12,000 BTU)
Electrical Phase1-Phase
Voltage240
Line Set Connection TypeQuick Connect
Liquid Line Size1/4 inch
Suction Line Size3/8 inch
Weight (lbs)24.500000
RefrigerantR-454b
System Application TypeDuctless Split Systems
Special FeaturesAlexa, Google Assistant, WiFi Capable
WarrantyLifetime, 5 Year Parts, 7 Year Compressor
California Residentssee Prop 65 WARNING

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