10 Best Diy Mini Split 2025 in the United States

The Senville LETO Series Mini Split Air Conditioner Heat Pump offers a versatile solution for both cooling and heating with a 9000 BTU rating, making it suitable for rooms up to 400 square feet. One of its standout features is the high SEER2 rating of 21.5, indicating excellent energy efficiency. This unit is also Alexa-enabled, allowing for convenient voice control and remote adjustments via an app, which adds to its user-friendly appeal. However, it's important to note that despite being labeled as a DIY mini-split, the installation does require professional assistance, which may add to the cost and complexity for some users.

The noise level is remarkably low at 25 dB, ensuring a quiet operation suitable for bedrooms or living areas. Additionally, the unit functions effectively as an air conditioner, heat pump, dehumidifier, and fan, offering year-round comfort. The included installation kit with a 16ft line set is comprehensive, but users should be aware that the refrigerant is only pre-loaded for up to 25 feet, which could limit placement options.

The 5-year warranty on parts and the compressor provides peace of mind, though labor is not included. This product might be most appealing to those looking for a stylish, multi-functional mini-split system with smart capabilities, who do not mind the need for professional installation.

The DELLA Versa Series 12000 BTU Mini Split Air Conditioner is a strong option for those looking to cool or heat a single zone up to 550 square feet. With a high SEER2 rating of 19, it is energy-efficient, making it a cost-effective solution in the long run. One of its notable features is its quiet operation, ranging between 30-41 dBa, which ensures minimal disturbance.

The unit also includes smart settings like auto defrost, self-diagnosis, and multiple fan speeds, adding to its convenience and ease of use. It is compatible with Alexa, allowing for voice control, which is a modern touch for tech-savvy users. However, while it’s advertised in the DIY mini-split category, it requires professional installation due to the need for line-set vacuuming and potential freon level adjustments. This could be a drawback for those specifically looking for a DIY solution.

The included 16.4 ft installation kit provides ample length for standard installations, but any alterations will need professional handling. Its heating capability is impressive, functioning in temperatures as low as -4°F. While the unit claims to cover up to 750 square feet, which is generous, it remains most effective within the 550-square-foot range stated in the product brief. This unit is best for users seeking a reliable, quiet, and energy-efficient single-zone mini split system but are willing to invest in professional installation.