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MRCOOL DIY-MULTI4-27HP230D-O DIY-09-HP-WMAH-230D25-O DIY-24-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9+24

SKU: DIY-MULTI4-27HP230D-O / DIY-09-HP-WMAH-230D25-O / DIY-24-HP-WMAH-230D25-O
Product ID: 108832
$3,597.00 - $3,597.00
$3,597.00
$3,597.00 - $3,597.00
$3,597.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-09-HP-WMAH-230D25-O DIY-18-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9+18

SKU: DIY-MULTI4-27HP230D-O / DIY-09-HP-WMAH-230D25-O / DIY-18-HP-WMAH-230D25-O
Product ID: 108831
$3,563.00 - $3,563.00
$3,563.00
$3,563.00 - $3,563.00
$3,563.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O 2-DIY-06-HP-WMAH-230D25-O 2-DIY-09-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 4-Zone 6+6+9+9

SKU: DIY-MULTI4-27HP230D-O / 2-DIY-06-HP-WMAH-230D25-O / 2-DIY-09-HP-WMAH-230D25-O
Product ID: 108785
$4,078.00 - $4,078.00
$4,078.00
$4,078.00 - $4,078.00
$4,078.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-12-HP-WMAH-230D25-O-2

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 12+12

SKU: DIY-MULTI4-27HP230D-O / 2-DIY-12-HP-WMAH-230D25-O
Product ID: 108794
$3,478.00 - $3,478.00
$3,478.00
$3,478.00 - $3,478.00
$3,478.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-36-HP-WM-230D25-O

MRCOOL 36,000 BTU DIY Mini Split Heat Pump 5th Gen E Star 25ft Line Set

SKU: DIY-36-HP-WM-230D25-O
Product ID: 108761
$0.00 - $0.00
$0.00
$3,769.00
$3,769.00 - $3,769.00
$3,769.00

Product Details MRCOOL 36K BTU 18 SEER2 Mini Split Heat Pump Condenser DIY 5th Gen R454B DIY-36-HP-C-230D25-O The MRCOOL DIY‑36‑HP‑C‑230D25‑O is a...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-09-HP-WMAH-230D25-O DIY-12-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9+12

SKU: DIY-MULTI4-27HP230D-O / DIY-09-HP-WMAH-230D25-O / DIY-12-HP-WMAH-230D25-O
Product ID: 108830
$3,321.00 - $3,321.00
$3,321.00
$3,321.00 - $3,321.00
$3,321.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-06-HP-WMAH-230D25-O DIY-12-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 6+12

SKU: DIY-MULTI4-27HP230D-O / DIY-06-HP-WMAH-230D25-O / DIY-12-HP-WMAH-230D25-O
Product ID: 108826
$3,246.00 - $3,246.00
$3,246.00
$3,246.00 - $3,246.00
$3,246.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-09-HP-WMAH-230D25-O-2

MRCOOL 27K BTU 23 SEER2 DIY 5th Gen Wall Mount Mini Split System 2-Zone 9+9

SKU: DIY-MULTI4-27HP230D-O / 2-DIY-09-HP-WMAH-230D25-O
Product ID: 108791
$3,164.00 - $3,164.00
$3,164.00
$3,164.00 - $3,164.00
$3,164.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-06-HP-WMAH-230D25-O DIY-09-HP-WMAH-230D25-O

MRCOOL 27K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 6+9

SKU: DIY-MULTI4-27HP230D-O / DIY-06-HP-WMAH-230D25-O / DIY-09-HP-WMAH-230D25-O
Product ID: 108823
$3,089.00 - $3,089.00
$3,089.00
$3,089.00 - $3,089.00
$3,089.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-06-HP-WMAH-230D25-O-2

MRCOOL 27K BTU 23 SEER2 DIY 5th Gen Wall Mount Mini Split System 2-Zone 6+6

SKU: DIY-MULTI4-27HP230D-O / 2-DIY-06-HP-WMAH-230D25-O
Product ID: 108784
$3,014.00 - $3,014.00
$3,014.00
$3,014.00 - $3,014.00
$3,014.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-12-HP-WMAH-230D25-O-2

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 12+12

SKU: DIY-MULTI3-18HP230D-O / 2-DIY-12-HP-WMAH-230D25-O
Product ID: 108767
$2,933.00 - $2,933.00
$2,933.00
$2,933.00 - $2,933.00
$2,933.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-09-HP-WMAH-230D25-O-3

MRCOOL 27K BTU 23 SEER2 DIY 5th Gen Wall Mount Mini Split System 3-Zone 9+9+9

SKU: DIY-MULTI4-27HP230D-O / 3-DIY-09-HP-WMAH-230D25-O
Product ID: 108809
$3,696.00 - $3,696.00
$3,696.00
$3,696.00 - $3,696.00
$3,696.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI4-27HP230D-O DIY-06-HP-WMAH-230D25-O DIY-09-HP-WMAH-230D25-O-2

MRCOOL 27K BTU 23 SEER2 DIY 5th Gen Wall Mount Mini Split System 3-Zone 6+9+9

SKU: DIY-MULTI4-27HP230D-O / DIY-06-HP-WMAH-230D25-O / 2-DIY-09-HP-WMAH-230D25-O
Product ID: 108819
$3,621.00 - $3,621.00
$3,621.00
$3,621.00 - $3,621.00
$3,621.00

Product Details MRCOOL 27K BTU Mini Split Heat Pump Condenser DIY 5th Gen 4 Zone R454B DIY-MULTI4-27HP230D-O The MRCOOL DIY 5th Generation 27,000...

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MRCOOL DIY-MULTI5-36HP230D-O DIY-09-HP-WMAH-230D25-O-2

MRCOOL 36K BTU 23 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9 + 9

SKU: DIY-MULTI5-36HP230D-O / 2-DIY-09-HP-WMAH-230D25-O
Product ID: 108865
$3,607.00 - $3,607.00
$3,607.00
$3,607.00 - $3,607.00
$3,607.00

Product Details MRCOOL 36K BTU Mini Split Heat Pump Condenser DIY 5th Gen 5 Zone R454B 230V DIY-MULTI5-36HP230D-O The MRCOOL DIY 5th Generation 3...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-06-HP-WMAH-230D25-O-3

MRCOOL 18K BTU 23.9 SEER2 DIY 5th Gen Wall Mount Mini Split System 3-Zone 6+6+6

SKU: DIY-MULTI3-18HP230D-O / 3-DIY-06-HP-WMAH-230D25-O
Product ID: 108772
$2,926.00 - $2,926.00
$2,926.00
$2,926.00 - $2,926.00
$2,926.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-09-HP-WMAH-230D25-O DIY-12-HP-WMAH-230D25-O

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9+12

SKU: DIY-MULTI3-18HP230D-O / DIY-09-HP-WMAH-230D25-O / DIY-12-HP-WMAH-230D25-O
Product ID: 108777
$2,776.00 - $2,776.00
$2,776.00
$2,776.00 - $2,776.00
$2,776.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-06-HP-WMAH-230D25-O DIY-12-HP-WMAH-230D25-O

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 6+12

SKU: DIY-MULTI3-18HP230D-O / DIY-06-HP-WMAH-230D25-O / DIY-12-HP-WMAH-230D25-O
Product ID: 108776
$2,701.00 - $2,701.00
$2,701.00
$2,701.00 - $2,701.00
$2,701.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-09-HP-WMAH-230D25-O-2

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 9+9

SKU: DIY-MULTI3-18HP230D-O / 2-DIY-09-HP-WMAH-230D25-O
Product ID: 108766
$2,619.00 - $2,619.00
$2,619.00
$2,619.00 - $2,619.00
$2,619.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY-MULTI3-18HP230D-O DIY-06-HP-WMAH-230D25-O DIY-09-HP-WMAH-230D25-O

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 6+9

SKU: DIY-MULTI3-18HP230D-O / DIY-06-HP-WMAH-230D25-O / DIY-09-HP-WMAH-230D25-O
Product ID: 108775
$2,544.00 - $2,544.00
$2,544.00
$2,544.00 - $2,544.00
$2,544.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL MHK20U

MRCOOL 20 Kilowatt Electric Heat Kit For Universal Air Handlers MHK20U

SKU: MHK20U
Product ID: 109681
$315.00 - $315.00
$315.00
$315.00 - $315.00
$315.00

Product Details MRCOOL 20 Kilowatt Electric Heat Kit For Universal Air Handlers MHK20U The MRCOOL MHK20U 20kW Electric Heat Kit is a high-capacity...

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MRCOOL MHK15U

MRCOOL 15 Kilowatt Electric Heat Kit For Universal Air Handlers MHK15U

SKU: MHK15U
Product ID: 109680
$265.00 - $265.00
$265.00
$265.00 - $265.00
$265.00

Product Details MRCOOL 15 Kilowatt Electric Heat Kit For Universal Air Handlers MHK15U The MRCOOL MHK15U 15kW Electric Heat Kit is a reliable supp...

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MRCOOL DIY-MULTI3-18HP230D-O 2-DIY-06-HP-WMAH-230D25-O

MRCOOL 18K BTU 23.9 SEER2 Wall Mount Mini Split System 5th Gen 2-Zone 6+6

SKU: DIY-MULTI3-18HP230D-O / 2-DIY-06-HP-WMAH-230D25-O
Product ID: 108764
$2,469.00 - $2,469.00
$2,469.00
$2,469.00 - $2,469.00
$2,469.00

Product Details MRCOOL 18K BTU Mini Split Heat Pump Condenser DIY 5th Gen 3 Zone R454B DIY-MULTI3-18HP230D-O  The MRCOOL DIY 5th Generation 18,00...

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MRCOOL DIY16-3858-O

MRCOOL 16 Feet 3/8" x 5/8" Line Set For DIY 24K 36K Indoor R454B

SKU: DIY16-3858-O
Product ID: 109633
$271.00 - $271.00
$271.00
$271.00 - $271.00
$271.00

Product Details MRCOOL 16 Feet 3/8" x 5/8" Line Set For DIY 24K 36K Indoor R454B DIY16-3858-O The MRCOOL® DIY16-3858-O is a 16-foot pre-charged li...

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MRCOOL DIY16-1438-O

MRCOOL 16 Feet 1/4" x 3/8" Line Set For DIY 6K 9K 12K Indoor R454B

SKU: DIY16-1438-O
Product ID: 109632
$227.00 - $227.00
$227.00
$227.00 - $227.00
$227.00

Product Details MRCOOL 16 Feet 1/4" x 3/8" Line Set for DIY 6K 9K 12K Indoor R454B DIY16-1438-O The MRCOOL DIY16-1438-O is a pre-charged 16-foot l...

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Shop MRCOOL Mini Split & Heat Pump Online

Our MRCOOL systems are known for their user-friendly approach, allowing you to handle your own mini-split or heat pump setup without a professional HVAC technician. For those interested in central ducted solutions, the universal series and Versapro 2nd gen systems provide robust air comfort and seamless integration with your existing HVAC system. You’ll also find heat pump split systems for year-round performance.

MRCOOL units are designed for both ductless and ducted applications, with features such as wall-mount, ceiling-cassette, and indoor air handler options. If you’re exploring alternatives, our 5 Zone Mini Split and PTAC Heating Units collections provide additional flexibility for unique spaces and larger projects.

Key Advantages of MRCOOL Systems

  • DIY-Friendly Installation: Pre-charged, quick-connect line set and diy unit design reduce installation costs and make setup easy for homeowners.

  • Versatile Heating and Cooling: Supports single-zone, multi-zone, and central-ducted configurations, with BTU options from 9k to 60k for tailored air comfort.

  • Energy Efficiency: SEER2 ratings and inverter-driven compressors deliver efficient air conditioning and heat pump performance for year-round savings.

Closely Related MRCOOL & Mini Split Options

Quick Spec Comparison Table

Product Name

BTU

SEER2

Stand-out Features

Voltage

MRCOOL 18,000 BTU DIY Mini Split Heat Pump 5th Gen Easy Pro

18k

20

Pre-charged, 16ft line set, 230v, easy to install

230v

MRCOOL 9,000 BTU DIY Mini Split Heat Pump 5th Gen E Star

9k

22

25ft line set, 115v, ductless mini-split, inverter

115v

MRCOOL 5 Ton Ducted Central Split Heat Pump System 16 SEER2 Hyper Heat 2nd Gen

60k

16

Central ducted, hyper heat, R454B refrigerant

230v

MRCOOL 4 Ton Ducted Central Split Heat Pump System 16.5 SEER2 Hyper Heat 2nd Gen

48k

16.5

Central ducted, hyper heat, R454B refrigerant

230v

MRCOOL 24,000 BTU DIY Mini Split Heat Pump 5th Gen E Star

24k

21.5

25ft line set, 115v, ductless, inverter

115v

Broader HVAC Solutions for Every Project

Why Choose MRCOOL at HVAC Store?

  • Wide selection of MRCOOL mini split, heat pump, and air handler options

  • DIY-friendly systems with pre-charged, quick-connect line sets

  • Energy-efficient solutions with high SEER2 ratings

  • Support for both ductless and central ducted HVAC systems is needed

  • Expert customer service to help you select the right system to purchase

FAQ

What is a diy mini split and how does it work?

A diy mini split is a ductless HVAC system designed for easy installation without specialized tools. It uses a pre-charged line set and quick-connect fittings to simplify setup.

How do I choose the right BTU for my space?

BTU requirements depend on room size, insulation, and climate. Larger spaces or rooms with high ceilings may need higher BTU ratings for effective heating and cooling.

What is the difference between single-zone and multi-zone mini split systems?

Single-zone systems control one area, while multi-zone systems allow independent temperature control in multiple rooms using a single condenser unit.

Are MRCOOL systems compatible with smart thermostats?

Many MRCOOL mini split and heat pump systems support smart thermostat integration, but always check product specifications for compatibility.

What is SEER2 and why does it matter?

SEER2 is a measure of energy efficiency for air conditioning and heat pump systems. Higher SEER2 ratings mean lower energy costs and better performance.

Can I install a MRCOOL DIY unit myself?

Yes, MRCOOL diy units are designed for homeowners to install with basic tools, thanks to pre-charged refrigerant lines and clear instructions.

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