Empire FB-BK-2 Automatic Fireplace Blower Fan Kit. We’ve remade the now discontinued FB-BK-2 automatic blower kit for the earlier model DVF36 and DVF42 model Empire fireplaces. Kit includes a ball bearing 180 CFM blower, automatic t-stat sensor with high temperature leads (mounts on top of fireplace) and speed control module (mounts below fireplace and two threaded studs). Blower sits on 4 rubber isolation grommets to insulate from metal on metal contact. Benefits of Adding a Fireplace Blower. Improves fireplace efficiency by as much as 80%. Helps reduce costly energy bills. Heats large rooms effectively. Installs quickly and easily. 180 CFM ball bearing blower assembly. Pre-wired for easy installation. Rheostat variable speed controller. Magnetic automatic thermostat sensor. High temperature t-stat wiring. Rubber isolation feet for noise reduction. Heavy duty grounded 3 prong power cord. 3 to 2 prong outlet adapter. L x W x H. 12.8″ x 4.0″ x 4.0″, removing rubber feet drops height below 4″ when blower is slightly rotated. Flange height of air discharge sits 1/16″ taller than the 4″, but does not cause clearance issues. 4.75 each blower. Blower, Motor & Bearing. High temperature rated composite. Steel powder coated black. Class H (rated to 392°F). Free standing, bracket has 4 rubber grommets that are attached to bracket and can be used to secure blower with hardware if needed. Rheostat Variable Speed Controller. Inline rheostat is included, which mounts below the fireplace. A wall mount version is available as an option. Yes, high temp wire leads. Attached on top of fireplace. Magnetic bracket with Selco sensor. DVF36, DVF36-2, DVF36IP-2, DVF42, DVF42-2, DVF42IP-2, VFFB-30C, VFFB-36C, VFFB-42C, VFFB-36D, VFFB-42D. Listing and template services provided by inkFrog.