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MRCOOL

MRCOOL DIY 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System 230V with 25 ft. DIY Quick Connect Line set and DIYPRO cable - DIY-18-HP-WM-230D25-O

SKU DIY-18-HP-WM-230D25-O

Regular price: $2,909.⁰⁰

Regular price: $2,909.⁰⁰

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MRCOOL

MRCOOL DIY 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System 230V with 25 ft. DIY Quick Connect Line set and DIYPRO cable - DIY-18-HP-WM-230D25-O

SKU DIY-18-HP-WM-230D25-O

Regular price: $2,909.⁰⁰

MRCOOL DIY 5th Gen E Star 18,000 BTU Single Zone Mini Split Complete System 230V with 25 ft. DIY Quick Connect Line set and DIYPRO cable - DIY-18-HP-WM-230D25-O

Overview

MRCOOL DIY 5th Gen E Star 18K BTU Dustcless Mini Split AC & Heat Pump Complete System with 25 ft Line set 208/230V

Upgrade your space with dependable heating and cooling using the MRCOOL® DIY® 5th Gen 18K BTU Single Zone Mini-Split System, engineered to efficiently condition rooms 500–750 sq. ft. Designed for true homeowner installation, this Energy Star® certified system eliminates the complexity of traditional HVAC setups. The included 25 ft. QuickConnect® pre-charged line set and rugged DIYPRO® cable streamline installation, while smart wireless controls let you manage comfort using the SmartHVAC app, remote, or voice assistants.

Built for high performance and long-term reliability, this system combines advanced inverter technology with durable construction to deliver consistent year-round climate control. Backed by strong warranty coverage and MRCOOL’s trusted engineering, it provides professional-grade heating and cooling without the cost or hassle of professional installation.

Why Choose MRCOOL® DIY® 5th Gen Mini-Split?

America’s Leading DIY Mini-Split: Designed for homeowners seeking professional performance with straightforward installation.
QuickConnect® Installation System: Pre-charged R-454B line set enables vacuum-free setup for faster installation.
Eco-Friendly Refrigerant: Modern refrigerant improves efficiency while reducing environmental impact.
DIYPRO® Protective Cable: Weather-resistant cable eliminates conduit and protects against outdoor exposure.
Smart Wireless Control: Adjust temperature via remote, SmartHVAC app, or Alexa/Google voice commands.
Follow Me Comfort Function: Adjusts airflow based on remote location for more consistent temperature control.
Dry Mode Dehumidification: Helps reduce excess moisture to improve indoor comfort.
Gold Fin® Corrosion Protection: Coastal-grade condenser coating extends long-term durability.
Industry-Leading Warranty Coverage: Compressor and parts protection for dependable ownership.
Certified Reliability: Tested and certified for safety, performance, and efficiency.

Specifications & Dimensions

Dimensions & Weight

Condenser Dimensions	35.04" W × 13.46" D × 26.50" H
Air Handler Dimensions	42.52" W × 8.90" D × 13.19" H
Condenser Weight	93.48 lbs / 42.4 kg
Air Handler Weight	35.49 lbs / 16.1 kg

Capacity & Performance

Zone Capacity	1
Cooling Capacity	18,000 BTU
Cooling Operating Range	-13°F to 122°F
EER2	13.7
SEER2	22.5
Heating Capacity	18,000 BTU
Heating Operating Range	-13°F to 75°F
HSPF2-4	11.5
HSPF2-5	8.5
Recommended Coverage	500–750 sq ft
Outdoor Noise Level	58.5 dB(A)
Indoor Noise Levels	54.5 / 44.5 / 40.5 / 30.5 / 19.0 dB(A)

Electrical Requirements

Voltage	208–230V
Phase	1
Frequency	60 Hz
Max Fuse Breaker	20A
Minimum Circuit Ampacity	18A

Refrigerant & Piping

Refrigerant Type	R-454B
Refrigerant Charge	44.80 oz
Liquid Line Size	1/4"
Suction Line Size	1/2"
Maximum Line Length	98.4 ft

Features

Inverter Technology	DC
Compressor Type	Rotary
Fan Only Mode	Yes
Quiet Mode	Yes
Auto Cooling	Yes
Built-in WiFi	Yes
App Compatibility	SmartHVAC app
iOS Support	Yes
Android Support	Yes
Remote Included	Yes

Certifications & Warranty

Certifications	UL Listed • ETL Listed • Energy Star® • AHRI Certified
Warranty	7-Year Compressor • 5-Year Parts

What's in the Box?

Indoor Air Handler 18k BTU
Outdoor Condenser 18k BTU
Wi-Fi SmartHVAC Control Module (Compatible with Amazon Alexa & Google Assistant)
Installation Kit (Includes DIYPRO® Cable & QuickConnect® Pre-charged Line Set (25 ft))
Remote Control
Installation Manuals & Warranty Documents