Fireplace Universal Fan Kit. The Skytech Universal Fan Kit is designed to circulate room air through many hearth products in the industry. Sealed ball bearing construction & quiet operation. Dual fan blades. Increased CFM provides more air movement. Magnetic quick mount installation. Anti-vibration magnetic mounting strips. ETL certified to CSA C22.2 & UL-1004. Kit includes: rheostat control temperature sensor. Item is BRAND NEW NEVER USED still in package. Only opened box to take photos and verify contents.