ENERGY-EFFICIENT COOLING SOLUTION: The QA-Deluxe 5500 Whole House Fan offers significant energy savings by efficiently circulating fresh outdoor air, reducing reliance on traditional air conditioning. Enjoy a cooler home environment while lowering your electricity bills. CUSTOMIZABLE COOLING CONTROL: Featuring a 2-speed wall switch and timer, this fan allows you to easily adjust speed and set specific run times. Optimize energy use and maintain a comfortable home climate with user-friendly controls. DURABLE & SAFE DESIGN: Built with a heavy-duty fan guard and an R-5 insulated damper, this fan prevents hot attic air from entering your living space, enhancing durability and safety. Ideal for maintaining a consistent home temperature. POWERFUL AIRFLOW FOR LARGE HOMES: Delivering up to 5500 CFM, the QA-Deluxe 5500 ensures effective cooling for homes up to 3400 sq. ft. (2-story) or 2400 sq. ft. (1-story). Experience superior air circulation and comfort even on the hottest days. EASY INSTALLATION & FIT: Designed to fit between 16" to 24" on-center joists, no framing is required. With dimensions of 28.5" D x 14" W x 14" H, installation is straightforward, making it a convenient choice for any home. QUALITY CRAFTSMANSHIP & WARRANTY: Proudly assembled in the USA, this fan comes with a 10-year motor warranty and a 3-year parts warranty, providing peace of mind and assurance of its quality build and long-lasting performance. Transform your home into a haven of comfort with the QA-Deluxe 5500 Whole House Fan, a pinnacle of energy-efficient cooling. Designed to significantly reduce cooling costs, this fan circulates fresh outdoor air, minimizing the need for traditional air conditioning. With a powerful 5500 CFM airflow, it ensures your living space remains refreshingly cool, even on the hottest days. The fan's robust construction includes a heavy-duty fan guard and an R-5 insulated damper, preventing hot attic air from entering your home and enhancing its durability and safety. Installation is a breeze with the QA-Deluxe 5500, fitting seamlessly between 16" to 24" on-center joists without the need for additional framing. Proudly made in the USA, this fan comes with a 10-year motor warranty, offering peace of mind and a testament to its quality craftsmanship. The user-friendly 2-speed wall switch and timer allow you to customize your cooling experience effortlessly, optimizing energy use and maintaining a comfortable home climate. Experience the perfect blend of performance, reliability, and convenience with this exceptional home cooling solution.