21 Products
Sale DIY R-454B
MRCOOL DIY 5th Gen EasyPro™ 9K BTU Single-Zone Mini Split

MRCOOL DIY 5th Gen EasyPro™ 9K BTU Single-Zone Mini Split

5th Gen 9,000 BTU 1 Zone 115V
⏳ Backordered Available Soon
Free shipping*
$1,585.00 $1,981.25
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Sale DIY R-454B
MRCOOL DIY® 9K BTU 5th Gen Single-Zone Mini Split Heat Pump

MRCOOL DIY® 9K BTU 5th Gen Single-Zone Mini Split Heat Pump

5th Gen 9,000 BTU 1 Zone 115V
In stock
Free shipping*
$2,330.00 $2,912.50
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Sale DIY R-454B
MRCOOL DIY 5th Gen EasyPro™ 12K BTU Single-Zone Mini Split

MRCOOL DIY 5th Gen EasyPro™ 12K BTU Single-Zone Mini Split

5th Gen 12,000 BTU 1 Zone 115V
⏳ Backordered Available Soon
Free shipping*
$1,649.00 $2,061.25
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Sale DIY R-454B
MRCOOL DIY® 12K BTU 5th Gen Single-Zone Mini Split Heat Pump

MRCOOL DIY® 12K BTU 5th Gen Single-Zone Mini Split Heat Pump

5th Gen 12,000 BTU 1 Zone 115V
In stock
Free shipping*
$2,370.00 $2,962.50
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Sale DIY R-454B

MRCOOL DIY 12K Hyper Heat Mini Split System – 5th Gen Wall...

5th Gen 12,000 BTU 1 Zone 208/230V
Out of stock
Free shipping*
$2,557.00 $3,196.25
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Sale DIY R-454B

MRCOOL DIY 12K Hyper Heat Ceiling Cassette Mini Split System – 23.5...

5th Gen 12,000 BTU 1 Zone 208/230V
Out of stock
Free shipping*
$3,297.00 $4,121.25
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Sale R-454B
MRCOOL DIY 5th Gen EasyPro™ 18K BTU Single-Zone Mini Split

MRCOOL DIY 5th Gen EasyPro™ 18K BTU Single-Zone Mini Split

5th Gen 18,000 BTU 1 Zone 208/230V
⏳ Backordered Available Soon
Free shipping*
$1,827.00 $2,283.75
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Sale R-454B
MRCOOL DIY® E-Star 18K BTU 5th Gen Single-Zone Heat Pump System

MRCOOL DIY® E-Star 18K BTU 5th Gen Single-Zone Heat Pump System

5th Gen 18,000 BTU 1 Zone 208/230V
In stock
Free shipping*
$2,910.00 $3,637.50
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Sale DIY R-454B

MRCOOL DIY 18K Hyper Heat Mini Split System – 5th Gen, -22°F...

5th Gen 18,000 BTU 1 Zone 208/230V
Out of stock
Free shipping*
$3,205.00 $4,006.25
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Sale DIY R-454B

MRCOOL DIYHH-18 Hyper Heat 18K Mini Split Complete DIY Bundle – 5th...

5th Gen 18,000 BTU 1 Zone 208/230V
Out of stock
Free shipping*
$3,719.00 $4,648.75
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Sale DIY R-454B
MRCOOL DIY 5th Gen EasyPro™ 24K BTU Single-Zone Mini Split

MRCOOL DIY 5th Gen EasyPro™ 24K BTU Single-Zone Mini Split

5th Gen 24,000 BTU 1 Zone 208/230V
⏳ Backordered Available Soon
Free shipping*
$2,149.00 $2,686.25
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Sale R-454B
MRCOOL DIY® 24K BTU 5th Gen Single-Zone Mini Split Heat Pump

MRCOOL DIY® 24K BTU 5th Gen Single-Zone Mini Split Heat Pump

5th Gen 24,000 BTU 1 Zone 208/230V
In stock
Free shipping*
$3,335.00 $4,168.75
View System
Sale R-454B
MRCOOL DIY® 36K BTU 5th Gen Single-Zone Mini Split Heat Pump

MRCOOL DIY® 36K BTU 5th Gen Single-Zone Mini Split Heat Pump

5th Gen 36,000 BTU 1 Zone 208/230V
In stock
Free shipping*
$3,790.00 $4,737.50
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Sale

MRCOOL Easy PRO 5th Gen DIY Mini Split Systems | 9K Through...

5th Gen
⏳ Backordered Available Soon
Free shipping*
$1,569.00 $1,961.25
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DIY R-454B

MRCOOL DIY® Select 12,000 BTU Single Zone Mini Split Heat Pump 115V...

5th Gen 12,000 BTU 1 Zone 115V
⏳ Backordered Available Soon
Free shipping*
$1,649.00
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DIY R-454B

MRCOOL DIY® Select 24,000 BTU Single Zone Mini Split Heat Pump 230V...

5th Gen 24,000 BTU 1 Zone 208/230V
⏳ Backordered Available Soon
Free shipping*
$2,149.00
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DIY R-454B

MRCOOL DIY® Select 18,000 BTU Single Zone Mini Split Heat Pump 230V...

5th Gen 18,000 BTU 1 Zone 208/230V
⏳ Backordered Available Soon
Free shipping*
$1,827.00
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DIY R-454B

MRCOOL DIY® Select 9,000 BTU Single Zone Mini Split Heat Pump 115V...

5th Gen 9,000 BTU 1 Zone 115V
⏳ Backordered Available Soon
Free shipping*
$1,569.00
View System

Choosing the Right MRCOOL DIY Single Zone System

Everything You Need to Know About MRCOOL DIY Single Zone Mini Split Systems

MRCOOL DIY single zone mini split systems are designed to heat and cool individual rooms with an easy-to-install, pre-charged system that requires no special HVAC tools or certification. Whether you're upgrading a bedroom, garage, office, or small living space, these systems offer efficient climate control with simple DIY installation.

With options like the MRCOOL 5th Gen DIY, Easy Pro, E-Star, and Select Series, homeowners can choose the right balance of performance, efficiency, and budget for their space without hiring a contractor.

MRCOOL DIY single zone mini splits are a popular alternative to window units and central HVAC systems for homeowners who want efficient, room-by-room climate control without complicated installation.

MRCOOL DIY Single Zone Mini Split Systems for One Room Comfort

Best Uses for MRCOOL DIY Single Zone Mini Splits:

• Bedrooms and master suites
• Garages and workshops
• Home offices and studios
• Room additions and finished basements
• Small homes and apartments
• Spaces without existing ductwork

MRCOOL DIY single zone mini split systems are available in multiple series, each designed to meet different performance needs, budgets, and climate conditions. Understanding the differences between these systems helps ensure you choose the right unit for your space and expectations.

The MRCOOL 5th Generation DIY Series is the top-tier option for single zone systems. These systems offer the highest level of efficiency, smart features, and cold-weather performance, with heating capabilities down to approximately -13°F before efficiency begins to decline. With a 5-year parts warranty and a 7-year compressor warranty, this series is ideal for homeowners looking for long-term performance and reliability in both heating and cooling.

The MRCOOL Easy Pro Series is a strong mid-tier option designed for homeowners who want excellent cooling performance with standard heat pump heating. These systems perform well in moderate climates and are capable of heating down to around 5°F before losing efficiency. Easy Pro systems are a great choice for garages, workshops, and living spaces where extreme cold performance is not required.

The MRCOOL Select Series is the most budget-friendly option and is designed to provide straightforward DIY installation with reliable cooling performance. Like traditional heat pumps, Select Series systems are best suited for mild to moderate climates, where heating demands are lower. These systems offer an accessible entry point into ductless HVAC while still delivering efficient cooling and simple installation.

By offering multiple system tiers, MRCOOL allows homeowners to choose the right balance of performance, efficiency, and cost depending on their climate and application.

Frequently Asked Questions

What is a single zone mini split system?

A single zone mini split system uses one outdoor condenser connected to one indoor air handler to heat and cool a single room or space. It’s ideal for targeted comfort without ductwork.

Which MRCOOL single zone system is best for cold climates?

The MRCOOL 5th Generation DIY Series is the best choice for cold climates, with heating performance down to approximately -13°F before efficiency begins to decline.

Can I install a MRCOOL DIY single zone system myself?

Yes. MRCOOL DIY systems are designed for homeowner installation using pre-charged line sets and quick-connect fittings, eliminating the need for specialized HVAC tools.

Are MRCOOL single zone systems good for heating?

Yes, but performance depends on the series. The 5th Gen DIY systems perform well in cold temperatures, while Easy Pro and Select Series systems are better suited for mild to moderate climates.

What size single zone mini split do I need?

System size depends on square footage, insulation, ceiling height, and climate. MRCOOL single zone systems range from 9,000 to 36,000 BTU.