MRCOOL Preseason Sale 2026: Save on DIY Mini Split Systems Before Peak Season

Take advantage of limited-time savings on MRCOOL DIY mini split heat pump systems during the MRCOOL Preseason Sale 2026. This exclusive promotion runs through March 31, 2026, offering early-access pricing on some of the most popular and reliable mini split HVAC systems on the market.

Why Buy MRCOOL Mini Split Systems During the Preseason?

Purchasing your HVAC system before the busy summer months can save you money, reduce installation headaches, and ensure you get the exact system size and features you need. Here are some key benefits of buying during the preseason sale:

• Better availability on popular sizes: The early bird gets the worm. Preseason buying ensures you get popular BTU capacities without worrying about stock shortages.
• Faster shipping and delivery: Avoid peak-season shipping delays caused by high demand and supplier bottlenecks.
• More installation flexibility: Booking your install ahead of peak season means you can schedule your project on your terms, without rushing.
• Locked-in pricing before summer spikes: HVAC equipment prices often rise as demand surges in the summer months. Preseason buyers lock in lower rates.

About MRCOOL DIY Mini Split Systems

MRCOOL has revolutionized the mini split market with its innovative DIY-friendly designs. These systems are engineered for professional performance while allowing experienced DIYers and HVAC contractors to save on installation costs. Here’s what makes MRCOOL DIY mini splits stand out:

• Pre-charged Quick Connect® line sets: These patented refrigerant lines eliminate the need for specialized vacuum pumps or refrigerant handling during installation. Simply connect the lines and start the system.
• Energy-efficient inverter technology: Variable-speed compressors optimize energy use, reducing electricity bills and improving comfort.
• Quiet operation: Advanced sound-dampening technology keeps indoor units whisper-quiet, ideal for bedrooms, offices, and living areas.
• Versatile single-zone solutions: Perfect for targeted heating and cooling in rooms, additions, garages, workshops, and more.
• Simple installation: Plug-and-play design minimizes installation time and complexity, even for first-time installers with electrical and HVAC experience.

MRCOOL DIY Mini Split Models on Sale

Each model offered during the preseason sale is a complete single-zone system, including an indoor air handler, outdoor condenser, pre-charged Quick Connect® line set, and remote control. Below is a breakdown of the available sizes and their ideal applications:

MRCOOL DIY 9,000 BTU – 115V (Small Rooms & Offices)

This compact system is designed for bedrooms, small home offices, or cozy living spaces where quiet, efficient operation is essential. The 115V power requirement makes it compatible with most standard residential circuits.

• Cooling capacity: Up to 9,000 BTU/hr
• Voltage: 115V, single-phase
• Ideal for: Small rooms under 400 sq. ft.
• Installation notes: Typically mounted high on a wall; requires a 15-amp breaker.

MRCOOL DIY 12,000 BTU – 115V (Bedrooms & Studios)

With slightly higher capacity, the 12K model balances efficiency and coverage for medium-sized rooms such as master bedrooms, studios, or home offices. It maintains quiet operation and energy efficiency.

• Cooling capacity: Up to 12,000 BTU/hr
• Voltage: 115V, single-phase
• Ideal for: Rooms from 400 to 600 sq. ft.
• Installation notes: Requires a 20-amp breaker; compatible with standard residential wiring.

MRCOOL DIY 18,000 BTU – 230V (Large Rooms)

This high-capacity unit is designed for larger rooms or open areas. It requires a 230V power source, common for larger HVAC equipment, and provides enhanced performance for spaces exceeding 600 sq. ft.

• Cooling capacity: Up to 18,000 BTU/hr
• Voltage: 230V, single-phase
• Ideal for: Large bedrooms, open-plan living spaces, and conference rooms
• Installation notes: Needs a dedicated 230V circuit breaker; proper electrical knowledge recommended.

MRCOOL DIY 24,000 BTU – 230V (Garages & Additions)

Perfect for conditioned spaces like garages, workshops, or home additions, the 24K BTU system delivers robust heating and cooling performance while maintaining energy efficiency.

• Cooling capacity: Up to 24,000 BTU/hr
• Voltage: 230V, single-phase
• Ideal for: Garages, workshops, ADUs, or large additions
• Installation notes: Requires professional-grade wiring; ensure proper breaker sizing and electrical compliance.

MRCOOL DIY 36,000 BTU – 230V (Large Open Spaces)

Designed for large open areas, commercial shops, or warehouse-style spaces, the 36K BTU system provides maximum single-zone heating and cooling capacity. It is the flagship model in the DIY lineup and represents a cost-effective alternative to traditional ducted HVAC systems.

• Cooling capacity: Up to 36,000 BTU/hr
• Voltage: 230V, single-phase
• Ideal for: Large open spaces, commercial environments, and multi-purpose rooms
• Installation notes: Requires professional electrical installation and compliance with local codes.

Step-by-Step MRCOOL DIY Mini Split Installation Overview

One of the biggest advantages of MRCOOL DIY systems is the streamlined installation process. While we always recommend consulting with or hiring a licensed HVAC professional if you’re unsure, here’s a general overview of the installation steps:

1. Choose the right location: Select mounting locations for the indoor air handler and outdoor condenser with proper clearance for airflow and maintenance access.
2. Install mounting brackets: Secure the indoor unit’s bracket to the wall, ensuring it’s level and structurally supported.
3. Run Quick Connect® line sets: Connect the pre-charged refrigerant lines between indoor and outdoor units using the patented Quick Connect® system—no vacuum or refrigerant charging required.
4. Electrical wiring: Connect the system to the appropriate power source (115V or 230V), ensuring breakers and wiring comply with local electrical codes.
5. Mount the outdoor condenser: Place the outdoor unit on a stable, level surface such as a concrete pad or mounting bracket, ensuring clearance for servicing and airflow.
6. Connect communication cables: Link the indoor and outdoor units with the provided communication wiring for system control.
7. Test the system: Power up the unit and check for proper operation, including heating, cooling, and fan modes.
8. Program the remote: Set the desired temperature, fan speed, and mode using the included remote control.

With these steps, many HVAC contractors and advanced DIYers can complete installation in a day or less, saving on labor costs and getting systems up and running quickly.

Energy Efficiency and Cost Savings

MRCOOL mini split systems feature inverter-driven compressors that modulate speed based on cooling or heating demand. This means they consume less energy compared to traditional single-speed HVAC units. The benefits include:

• Lower utility bills: Reduced power consumption means monthly savings on electricity costs.
• Enhanced comfort: More consistent indoor temperatures without the temperature swings common in conventional systems.
• Reduced environmental impact: Energy-efficient operation helps decrease your carbon footprint.

Need Help Finding the Right HVAC Parts?

At HVACProSales.com, we provide contractor pricing and same-day shipping on thousands of OEM parts, tools, and MRCOOL systems. If you need assistance matching a part or sizing a system, our experts are here to help.

• Email: support@hvacprosales.com
• Phone: 1-866-330-1709 (Voice Message Support)

Note: We prioritize email support to ensure accurate part matching and fast response times.