GFK-160A Temperature Controlled 180 CFM Fireplace Blower Fan Kit with Speed Control Knob Fireplace fan/blower kit with manual Rheostat speed control Exact replacement for GFK-160A fan kit; suitable for many products in the hearth industry Blower features 180 CFM (cubic feet per minute), timer for automatic control, magnetic mounting strips for noiseless operation Certified by ETL; Complies with CSA C22.2; UL listing 1004; 2 year manufacturer's warranty Includes: entire blower kit, electronic speed control, power adapter, & necessary wires