Comes standard with an superbly balanced, powerful and quiet 180 CFM blower. The blower is constructed of professional grade materials, including high-grade Japanese sealed ball bearings, high temperature rated composite wheels and a rust-free powder coated galvanized steel chassis. The blower has a 5° pitched air flange to ensure all available air flow is transfered directly up the backside of your fireplace. It’s roller bearing motor is energy efficient and will significantly improve the heating efficiency of your fireplace. The kit is pre-wired and fully assembled for super easy installation! A few additional features include a full range variable speed rheostat controller with on/off position, which provides a convenient method for controlling both blower speed and noise. The kit also includes an automatic thermostat sensor that is magnetically attached to the underside of your fireplace. The thermostat will turn your blower on and off as the fireplace heats up and cools down.