Some features of a gas log fireplace blower include an intake louver, thermostat, blower fan and outlet vent. Gas fireplace blowers pull cool air from the room through the lower louvers, move it around and over the fireplace insert, and then blow the heated air back into the room.
Installing a gas fireplace blower transforms a gas fireplace from a visual display to an efficient space heater. Without a blower, heat energy escapes through the vents, chimney and the material around and behind the fireplace. Only a fraction of the heat generated by the gas fire warms the air in front of the fireplace. Gas log fireplace blowers capture energy and circulate it throughout the room for optimal zone heating.
Older fireplaces are inefficient, only transferring 5 to 10 percent of the heat generated to the room. In contrast, gas fireplace inserts with blowers receive energy-efficiency ratings of 76 to 83 percent. Homeowners often report that they are able to turn down their thermostats several degrees after installing gas fireplace blowers, thus reducing their heating bills. Many systems feature a remote control with programmable settings, including variable fan speeds and flame heights. These systems are available in both stock gas fireplace units and aftermarket kits.