Dimensions:15″ W x 4.25″ H x 3.75 D. Note: A rheostat may be added to this blower to achieve the desired balance of noise to airflow. Add a blower for extra warmth or replace an existing blower This professional grade tangential blower is commonly used to help distribute heat from fireplaces and stoves. These are extremely quiet (1.4 Sones) and won’t be heard over a crackling fire. It is small enough to fit where the fan would go on most fireplace units. Simply wire in or add a power cord and you are all set. Use it to push heat away from your fireplace or stove and to where it can be enjoyed.