Mr Cool DIY 18K BTU 5th gen Single-Zone Mini-split

The 5th Generation MRCOOL® DIY® 18K BTU Ductless Heat Pump Single Zone Mini-Split, including both the Air Handler and Condenser, is a powerful and efficient solution for home climate control. Designed with true DIY installation in mind, this system requires no special tools or professional assistance, making setup fast, simple, and cost-effective. It is ideal for heating and cooling spaces between 500–800 sq. ft.

The pre-charged 25-foot DIY® QuickConnect® line set comes pre-filled with R-454B refrigerant, eliminating the need for vacuuming and cutting down on installation time and costs. The included DIYPRO® cable replaces the need for electrical conduit, adding durability and protection against outdoor elements, wildlife, and yardwork damage.

Managing your comfort is effortless with multiple control options, including the wireless remote, the SmartHVAC app for Apple and Android devices, and hands-free voice commands via Amazon Alexa and Google Assistant. For added comfort, the remote features Follow Me technology, allowing the air handler to adjust airflow based on the remote’s location for consistent temperature control.

Engineered for durability, the Gold Fin® Condenser provides superior corrosion resistance, making it especially beneficial for coastal environments. This system also offers multiple efficiency-boosting features: Dry Mode reduces excess humidity and condensation buildup, the Timer function helps control energy use, Auto mode maintains your preferred temperature without manual adjustments, and after a power outage the system automatically restores previous settings. The anti-mildew function further prevents excess moisture inside the air handler.

Backed by industry-leading warranties—including a limited lifetime warranty (available with MRCOOL Care Program enrollment), a 7-year compressor warranty, and a 5-year parts warranty—the 5th Generation MRCOOL® DIY® 18K BTU Mini Split delivers innovative design, simple installation, and dependable year-round comfort.