This type of professional grade blower is commonly used to help distribute heat from fireplaces and stoves. These are extremely quiet (less than 2 sones) and won’t be heard over the fire crackling. Use it to push heat away from your fireplace or stove and to where it can be enjoyed. Professional Grade Replacement Fireplace Blower 160-180 CFM based on application, 3000 RPM, 1.13 Max Amps Attached Plug-in Cord Speed Control (Helps control the heat output into the room) Thermostatic Activation Switch.