Choosing the right mini split size depends on the area you want to cool or heat. Measure the square footage of your space, then check the BTU rating on each mini split system. For example, a 9,000 BTU unit is often suitable for rooms up to 450 sq. ft., while larger spaces may need 18,000 BTU or more.

• Consider ceiling height and insulation quality.
• Think about how many windows and doors are in the room.
• If you're unsure, consulting a professional installer can help you make the best choice for your needs.

Most mini split systems at Walmart come with an installation kit to help you get started. Typical kits may include:

• Line sets (copper tubing for refrigerant)
• Mounting brackets or hardware
• Drain hose
• Electrical wiring
• Remote control

Some kits are more comprehensive than others, so it's a good idea to check the product details for what's included. For complex installations or if you’re not comfortable with electrical work, hiring a licensed professional is recommended.

Regular maintenance can help your mini split compressor run efficiently.

• Clean or replace air filters every few months.
• Wipe down the indoor unit to remove dust.
• Check the outdoor compressor for debris or leaves and gently clear them away.
• Inspect the line set and connections for any visible issues.

Scheduling a professional inspection once a year can also help catch potential problems early and keep your system working smoothly.

Many mini split systems now offer WiFi or smart home compatibility. If your unit is WiFi-enabled, you can usually download a compatible app to control temperature, set schedules, and monitor energy use from your smartphone.

• Check the product description for smart features.
• Some models also work with voice assistants for hands-free control.

Features may vary by model, so review the details to see what’s available for your chosen system.

If your mini split isn’t cooling as expected, there are a few things you can check:

• Make sure the air filters are clean and not blocked.
• Check that the remote or control panel is set to the correct mode and temperature.
• Look for any obstructions around the indoor or outdoor units.
• Ensure the doors and windows in the room are closed.

If these steps don’t help, it may be time to contact a qualified technician for further troubleshooting or repairs.