The Marley Engineered Products FRA4020F 4000/2000W 208V Wall Htr Fan is a high-performance fan that is perfect for use in large areas such as warehouses and factories. This fan is made with a durable construction that is able to withstand high levels of wear and tear, making it a great choice for businesses that need a fan that can handle a lot of traffic. The Marley Engineered Products FRA4020F 4000/2000W 208V Wall Htr Fan also features a powerful motor that is able to generate a high level of airflow, making it a great choice for use in areas that need to be cooled down quickly.