Quick answers to questions about ordering, compatibility, and installation.
The MRCOOL DIY® 5th Generation E-Star Single-Zone Mini Split Series delivers high-efficiency heating and cooling for homeowners who want exceptional cold-weather performance without the cost or complexity of professional installation. Available in capacities ranging from 9,000 to 36,000 BTU, this series allows you to choose the exact size needed for your space while maintaining consistent comfort and energy savings.
The E-Star series is designed for customers who demand better heating performance in colder climates compared to base-model heat pumps. While all MRCOOL systems cool efficiently, the E-Star lineup is engineered with enhanced compressor performance to maintain heat output and efficiency at lower outdoor temperatures.
Installation is truly DIY-friendly. Each system is compatible with MRCOOL® DIY® Quick Connect Pre-Charged Line Sets, eliminating the need for vacuum pumps, refrigerant handling, or HVAC licensing. Most homeowners can complete installation using basic tools, saving thousands in installation costs.
Advanced inverter technology optimizes compressor speed for steady temperatures, reduced energy consumption, and quiet operation. All E-Star single-zone systems are ENERGY STAR® certified and use R-454B refrigerant, a lower-GWP alternative to R-410A that meets modern efficiency and environmental standards.
Smart comfort control comes standard. Adjust settings through the included wireless remote, the MRCOOL Smart HVAC app, or voice control via Amazon Alexa and Google Assistant. The Follow Me® function allows the system to sense temperature at the remote’s location, helping maintain comfort exactly where you are.
Built for long-term durability, the outdoor condenser features Gold Fin® corrosion-resistant coating, making these systems suitable for coastal, humid, or harsh environments. Quiet operation makes the E-Star series ideal for bedrooms, offices, living spaces, and additions.
| Square Footage | Recommended BTU |
|---|---|
| 150 – 350 sq ft | 9,000 BTU (9k) |
| 351 – 500 sq ft | 12,000 BTU (12k) |
| 501 – 750 sq ft | 18,000 BTU (18k) |
| 751 – 1,000 sq ft | 24,000 BTU (24k) |
| 1,001 – 1,500 sq ft | 36,000 BTU (36k) |
Need a longer line set? No problem. MRCOOL DIY Direct offers pre-charged 16’, 25’, 35’, and 50’ line set options with control wire and unions for flexible installation in any home layout.
Invest in reliable, energy-efficient comfort today with the 5th Gen MRCOOL DIY Single Zone Mini Split — only at MRCOOL DIY Direct, America’s most trusted HVAC dealer.
Quick answers to questions about ordering, compatibility, and installation.
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
Manufacturer installation guides and documentation are included or available upon request for most products.
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
Get help with ordering, compatibility, or installation questions.
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