100% ball bearing aftermarket Empire R12447. Fits FBB9 fan kit applications used on Empire / White Mountain Hearth DVLL41 & DVTL41 Boulevard Linear direct-vent gas fireplaces. Fits onto original mounting bracket and wires to original wiring harness. Quieter than original with no loss of air flow. The factory blower uses cheaper bearings, specifically for the outside wheel bearing. If you pull the larger red rubber end cap off the original, you’ll find a plastic bearing, which have limited lifespans and no ability to re-oil. Our aftermarket version is 100% ball bearing, including the outside end cap bearing. It’s also more powerful than the original, which is an added benefit. 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. 100% ball bearing blower. L x W x H. 15.0″ x 3.0″ x 2.5. Blower, Motor & Bearing. Class H (rated to 392°F). Rheostat Variable Speed Controller. Boulevard Linear Direct-Vent DVLL41 (all variations), DVTL41 (all variations). Listing and template services provided by inkFrog.