12000 BTU

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Welcome to the South Mini Splits collection for your 12000 BTU mini split system. We feature high-efficiency systems from industry leaders like Cooper & Hunter, OLMO, MRCOOL, and Bravo.

These powerful, versatile, and highly efficient units are the ideal solution for efficiently zoning larger bedrooms, moderate living spaces, and residential/light commercial retrofits.

💡Why Choose South Mini Splits for Your Universal Floor/Ceiling?

✅ Wholesale Pricing: Competitive rates on top-tier HVAC equipment.

✅ USA-Based Support: Expert help from sizing to post-install troubleshooting.

✅ Free Shipping Over $300: Get your complete system delivered fast.

What is 12,000 BTU Mini Split AC & Heat Pump Systems?

A 12,000 BTU mini split system, commonly referred to as a 1 Ton unit, is the industry standard for efficiently heating and cooling medium-sized rooms.

These highly capable, single-zone systems are designed for spaces between 450 and 650 square feet. They are powerful enough to handle larger living areas, master bedrooms, small apartments, or dedicated commercial spaces like server rooms and retail offices, providing precise climate control far more efficiently than window units or central AC alone.


When installing a 12,000 BTU unit in a residential setting, a key tip is to choose a location on the wall that is centrally positioned and away from direct heat sources, such as large windows or electronics. This ensures uniform air distribution throughout the room and prevents the unit's internal thermostat from giving false readings, thereby maximizing both comfort and energy efficiency.

For commercial applications, such as small retail or office spaces, it is crucial to size the unit based on the occupancy load and the amount of heat-generating equipment (like computers and copiers), rather than relying solely on square footage. The insight here is that commercial spaces often require significantly more—about 20% to 30%—cooling capacity per square foot. The 12k BTU unit is often ideal for providing consistent cooling in small, specialized zones, such as dedicated IT closets.

FAQs/Frequently Asked Questions

Q: What room size is appropriate for a 12,000 BTU mini split?

A: A 12,000 BTU unit is recommended for rooms between 450 and 650 square feet, making it perfect for main living rooms and master suites.

Q: Can a 1 Ton (12,000 BTU) mini split replace my central AC?

A: A single 12,000 BTU unit can effectively replace central AC for a dedicated zone or small apartment, but not for an entire average-sized home. Multiple units or a multi-zone system would be necessary for whole-home coverage.

Q: Do these units require a 220V or 110V power source?

A: While some smaller 9,000 BTU units use 110V, most 12,000 BTU systems operate on 230V/208V power to handle the increased load. Always check the product specifications before purchase.

Q: What is the benefit of a 12k BTU unit having a high SEER rating?

A: The Seasonal Energy Efficiency Ratio (SEER) measures efficiency. A higher SEER rating on your 12k BTU unit means it converts electricity into cooling/heating more effectively, leading to lower monthly energy bills.

Q: Are installation kits included with the 12,000 BTU systems?

A: Many of our 12,000 BTU systems offer the option to include a line set installation kit at checkout, simplifying the setup process for installers.