MRCOOL 9,000 BTU DIY 5th Gen Energy Star 23.6 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V

Overview

MRCOOL 9,000 BTU DIY 5th Gen Energy Star 23.6 SEER2 Ductless Mini Split Heat Pump System - R454B - 115V

Upgrade your comfort with the MRCOOL DIY 5th Gen E-Star 9k BTU Single Zone Mini-Split System — a high-efficiency heating and cooling solution designed for rooms up to 400 sq. ft. Built for true homeowner installation, this system removes the complexity of traditional HVAC setups while delivering professional-grade performance year-round. The included 25 ft. QuickConnect® pre-charged line set and rugged DIYPRO® cable allow for fast installation without specialized tools, while multiple wireless control options make temperature management simple using the remote, SmartHVAC app, or voice commands.

Engineered for durability, energy efficiency, and intelligent climate control, this Energy Star® certified system combines advanced inverter technology with corrosion-resistant construction for dependable long-term operation. Backed by strong warranty protection and trusted MRCOOL® engineering, it delivers powerful comfort without the cost or hassle of professional installation — giving you confidence and total control over your indoor environment.

Why Choose the MRCOOL DIY 5th Gen E-Star 9k BTU?

• America’s Leading DIY Mini-Split Brand: Built specifically for homeowner installation, helping you save on professional HVAC installation costs without requiring specialized tools or previous experience.
• Pre-Charged QuickConnect® Line Set: The included line set arrives pre-charged with R-454B refrigerant, eliminating the need for vacuuming, gauges, or refrigerant handling.
• Lower-GWP R-454B Refrigerant: Uses a more environmentally responsible refrigerant with a lower Global Warming Potential than older refrigerants such as R-410A.
• Durable DIYPRO® Cable: Provides added protection against weather, outdoor exposure, and wildlife while eliminating the need for traditional electrical conduit.
• Industry-Leading Energy Efficiency: The MRCOOL® DIY® 5th Gen delivers some of the highest efficiency ratings available in the DIY mini-split category, helping reduce energy consumption and monthly heating and cooling costs while maintaining reliable year-round comfort.
• Multiple Control Options: Adjust the temperature using the included remote, the SmartHVAC app for Apple and Android devices, or voice commands through Amazon Alexa and Google Assistant.
• Follow Me® Function: Uses the temperature around the remote to adjust system performance and deliver more consistent comfort where you are located.
• Dry Mode: Removes excess moisture from the air to improve indoor comfort and help create a less humid living environment.
• Gold Fin® Condenser Protection: The corrosion-resistant condenser coating provides added durability, especially in coastal areas and other demanding outdoor environments.
• Wide Outdoor Operating Range: Provides cooling in outdoor temperatures from -13°F to 122°F and heating from -13°F to 75°F, depending on the specific model and capacity.
• Strong Warranty Protection: Includes a 7-year compressor warranty and a 5-year parts warranty for added long-term peace of mind.
• Intertek Listed: Intertek listing 5031495 demonstrates compliance with applicable product performance and safety standards.

Specifications & Dimensions

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Capacity & Performance

Electrical Requirements

Refrigerant & Piping

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Certifications & Warranty