10 Best 12000 Btu Mini Split Heat Pump 2025 in the United States

The MRCOOL DIY 12,000 BTU mini split heat pump is designed for spaces up to about 550 square feet, making it a solid choice for small rooms, offices, or similar areas. Its 12,000 BTU cooling and heating power means it can handle year-round comfort without needing separate units. The unit has a high SEER rating of 23.5, which signals strong energy efficiency, helping to keep electricity bills lower. Noise-wise, it operates at a quiet 45 decibels, similar to a normal conversation, so it won’t disturb your daily activities.

The Senville LETO Series Mini Split Heat Pump is a solid option for anyone seeking an efficient and versatile heating and cooling system. With a 12000 BTU rating, it effectively cools or heats spaces up to 550 square feet, making it suitable for various environments, including homes, offices, and retail spaces. One of its standout features is the high SEER rating of 19, which indicates excellent energy efficiency, potentially lowering your electricity bills. The HSPF rating also supports its efficiency, particularly in heat pump mode, which is important for year-round comfort.

The Cooper & Hunter 28,000 BTU Tri 3-Zone Mini Split Heat Pump stands out by offering three separate 12,000 BTU indoor units, allowing you to cool or heat multiple rooms independently. With a high SEER rating of around 23.8, it promises excellent energy efficiency, which can help lower electricity bills during use. It also functions well as a heater down to -13°F, making it versatile for year-round climate control. The noise level is impressively low at just 24 decibels, meaning it runs quietly enough for bedrooms or living spaces without disruption.