MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454B

The MRCOOL DIY 5th Gen E-Star Series 18K BTU Mini-Split Heat Pump System delivers next-generation efficiency, low environmental impact, and true do-it-yourself installation. This single-zone package features a premium ceiling cassette air handler for discreet comfort, providing powerful heating and cooling performance without compromising aesthetics.

Unlike traditional wall-mounted units, the MRCOOL ceiling cassette fits neatly between standard 16” ceiling joists, making it the perfect low-profile solution for modern homes and office spaces. This system uses MRCOOL’s latest R-454B refrigerant, offering a lower Global Warming Potential (GWP) and compliance with updated refrigerant regulations.

💡 What’s Included in This Bundle?

✔ MRCOOL DIY 5th Gen 18K BTU, 1.5 Ton, 21.5 SEER2 Heat Pump Condenser
(Model: DIY-18-HP-C-230C)

✔ MRCOOL DIY 5th Gen 18K BTU Ceiling Cassette Air Handler
(Model: DIYCASSETTE18HP-230C25)

✔ Standard 25 Ft. MRCOOL Pre-Charged Quick Connect Line Set – R-454B
(No vacuum or special tools required)

🌡️ MRCOOL 5th Gen Heat Pump Condenser – Key Features

• 18,000 BTU Output – Ideal for heating & cooling single-zone spaces up to ~750–800 sq ft

• 21.5 SEER2 High Efficiency – Lower utility costs without sacrificing performance

• Pre-Charged with R-454B Refrigerant – Eco-friendly, low-GWP refrigerant

• Gold Fin Condenser Coating – Corrosion-resistant for long outdoor life

• Cold Weather Ready – Operates in temperatures down to 5°F

• True DIY Installation – Quick Connect fittings, no vacuum pump needed

• Warranty – 7-Year Compressor / 5-Year Parts (Lifetime Limited Compressor with registration)