MrCool Air Conditioners

MRCOOL EasyPro 5th Generation 9k BTU Ductless Mini-Split Heat Pump - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity9000BTU
Max. Coverage Area400sqft
Tonnage0.75

Free delivery on Oct 10–16

MRCOOL EasyPro 5th Generation 18k BTU Ductless Mini-Split Heat Pump - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity18000BTU
Max. Coverage Area800sqft
Tonnage1.5

Free delivery on Oct 10–16

MRCOOL EasyPro 5th Generation 24k BTU Ductless Mini-Split Heat Pump - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity24000BTU
Max. Coverage Area1050sqft
Tonnage2

Free delivery on Oct 10–16

MRCOOL DIY 5th Generation 9k BTU Heat Pump Mini Split - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity9000BTU
Max. Coverage Area400sqft
Tonnage0.75

Free delivery on Oct 10–16

MRCOOL DIY 5th Generation 12k BTU Heat Pump Mini Split - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity12000BTU
Max. Coverage Area550sqft
Tonnage1

Free delivery on Oct 10–16

MRCOOL DIY 5th Generation 18k BTU Heat Pump Mini Split - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity18000BTU
Max. Coverage Area800sqft
Tonnage1.5

Free delivery on Oct 10–16

MRCOOL DIY 5th Generation 24k BTU Heat Pump Mini Split - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity24000BTU
Max. Coverage Area1050sqft
Tonnage2

Free delivery on Oct 10–16

MRCOOL DIY 5th Generation 36k BTU Heat Pump Mini Split - Complete System (454B Refrigerant)

AC typeMini-Splits
BTU Capacity36000BTU
Max. Coverage Area1550sqft
Tonnage3

Free delivery on Oct 10–16

Overview
Articles

MRCOOL Mini Split Systems For Sale

MRCOOL mini split systems offer the industry's first truly DIY-friendly ductless solution that eliminates professional installation costs. With innovative pre-charged line sets and quick-connect technology, homeowners can achieve professional-grade climate control at a fraction of conventional costs.

What Makes MRCOOL Mini Splits Different from Traditional HVAC?

MRCOOL mini splits use patented pre-charged refrigerant line sets that eliminate vacuum pumps, refrigerant certification, or specialized HVAC tools. This is the only ductless mini-split system designed for amateur installation, featuring R-454B pre-charged lines and quick-connect fittings.

💰

$2,500

Average Savings

⏱️

2-4 Hours

Install Time

🛡️

7 Years

Warranty

Which MRCOOL Series Should You Choose?

DIY 5th Generation Series

Premium DIY line with 9,000-36,000 BTU capacity and up to 20.5 SEER2 efficiency. Includes 7-year compressor and 5-year parts warranty, 25-foot pre-charged line sets, and Wi-Fi connectivity.

Easy Pro Series

Entry-level option with 9,000-24,000 BTU capacity, 16-foot line sets, and 2-year parts/1-year compressor warranty. Best for budget-conscious homeowners.

Advantage Series

Requires professional installation but offers competitive pricing. No pre-charged line sets - traditional refrigerant handling required.

BTU Sizing Guide

BTU Rating	Coverage Area	Applications
9,000 BTU	Up to 400 sq ft	Small bedrooms, offices
12,000 BTU	Up to 550 sq ft	Master bedrooms
18,000 BTU	Up to 750 sq ft	Living rooms
24,000 BTU	Up to 1,000 sq ft	Open floor plans
36,000 BTU	Up to 1,500 sq ft	Great rooms, shops

How to Calculate the Right BTU Size?

General rule: 20 BTUs per square foot, but adjust for ceiling height ( 10-20% for high ceilings), insulation quality ( 25-30% for poor insulation), and window exposure ( 10-15% for south-facing windows).

Expert Tip

Example: 500 sq ft room with 10-foot ceilings and south windows = 10,000 BTU base 2,000 BTU (high ceiling) 1,000 BTU (sun exposure) = 13,000 BTU total requirement.

DIY vs Professional Installation?

✅ Choose DIY If:

Basic electrical/mechanical skills
Straightforward wall mounting
Want immediate installation
Budget-focused

🔧 Choose Professional If:

Complex electrical work needed
Local codes require licensing
Want installation warranty
Challenging locations

Feature	DIY 5th Gen	Easy Pro	Advantage
Installation	DIY-friendly	DIY-friendly	Professional only
Parts Warranty	5 years	2 years	Varies
Compressor Warranty	7 years	1 year	Varies
SEER Rating	Up to 20.5	Up to 17	Up to 17.5
Price Range	$1,800-$3,200	$1,200-$2,100	$1,000-$1,800

Performance and Reliability

❄️ Heating Performance: MRCOOL systems operate reliably down to -15°F, suitable for most U.S. climate zones.

"I have installed dozens of MRCOOL systems and encountered very few problems. Issues often stem from poor installation rather than product defects."

- Licensed HVAC Professional

Essential Maintenance

🔧 Monthly: Clean air filters
Quarterly: Clear outdoor unit debris
Annually: Professional coil cleaning

Ready to Find Your Perfect MRCOOL Mini Split?

Explore our complete selection of DIY-friendly ductless mini splits with pre-charged line sets, 7-year warranties, and professional-grade performance at unbeatable prices.

Shop MRCOOL Mini Splits