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) 💬 Need a longer line set?This system comes standard with a 25' pre-charged line set. You can upgrade to a 35' continuous line set with matching control wire for installations requiring a bit more reach without added connections. For even greater flexibility, extended configurations are also available in 41', 50', or 75' total line lengths. These setups use the included 25' pre-charged line set paired with an additional pre-charged line set connected via MRCOOL Quick Connect® couplers, along with a longer control wire. This sectional or continuous approach provides easy installation options for every scenario—from simple straight runs to complex or tight routing—while maintaining MRCOOL’s leak-proof reliability and DIY simplicity. 🌡️ 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) 🔲 MRCOOL Ceiling Cassette Air Handler – 18K BTU Flush Ceiling Installation – Fits between 16” joists for a seamless appearance Multiple Comfort Modes – FAN ONLY, QUIET, SLEEP, AUTO for complete control Elevating Air Filter System – Drops up to 4.9 ft for easy, tool-free cleaning Unified Aesthetic – Matches MRCOOL multi-zone cassette design Smart Home Ready – Wi-Fi enabled, works with Alexa & Google Assistant Expandable Design – Visually matches multi-zone setups for future expansion 🔧 Why Choose MRCOOL DIY 5th Gen? No HVAC License Required – Perfect for homeowners & skilled DIYers R-454B Refrigerant Compliant – Ready for new HVAC regulations Pre-Charged Line Sets – No refrigerant handling or vacuuming Energy Efficient – Meets or exceeds ENERGY STAR® guidelines Nationwide Support & Fast Shipping – Buy from the #1 Independent MRCOOL Dealer: MRCOOL DIY Direct 🛒 Order Your MRCOOL 5th Gen DIY Ceiling Cassette System Today!Experience discreet, high-efficiency climate control you can install yourself. Whether you’re upgrading a bedroom, home office, or guest suite, this 5th Gen DIY mini-split is built for performance, convenience, and compliance. 🔗 Shop now at MRCOOL DIY Direct – stay cool and save the smart, easy way. Specifications & Dimensions Condenser Dimensions 26.5" H x 13.46" L x 35.04" W Voltage 240 SEER 22 Heating Capacity 15,001 - 20,000 BTU Refrigerant Type R-454B Avg Coverage Area 750 - 900 Sq Ft Compressor Inverter Air Handler Dimensions 13.19 in D x 8.98 in H x 50.31 in W Voltage 208/230 SEER 21.8 Cooling Capacity 17000 Heating Capacity 19000 Refrigerant Type R-454B Min Ambient Cool 60F ~ 90F Min Ambient Heat 32F ~ 86F