UZY7 Blower for Astria, BIS, Lennox and Superior Wood Fireplaces. Our UZY7 replacement blower fits Astria, BIS, Lennox and Superior wood fireplaces with the older UZY7 blower kit. The original blowers used brass sleeve bearings and were prone to heating and premature bushing wear. Our replacements are 100% sealed ball bearing, 130 CFM, quiet and easy to install. Replacement blowers mount directly to the original brackets, so be sure to keep those. To remove old blower, consult installation instructions and the steps itemized to replace the blower. In most cases, the blower is removed through the access plate in the firebox floor. See compatibility list below for fitment and cross-references. 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 replacement blower. Power cords and blower chassis diagonal support braces are NOT included with replacement blowers. If you’re installing a blower for the first time, a blower kit may be required. Replacement blowers are intended to replace worn or defective blowers and do not include the components of a full blower kit. This blower may be used as a universal replacement blower, so please review dimensions before purchasing. For more information on the benefits of ball bearing blowers, read our. How Does a Fireplace Blower Work? L x W x H. 12 3/4″ x 4 1/4″ x 3 9/16. 9.50″ x 2.0″. Blower, Motor & Bearing. Class H (rated to 392°F). Mounts directly to UZY6 bracket. Optional (included with kits only). Noise Reduction Padding & Velcro. Included on blower housing where bracket and blower touch. Listing and template services provided by inkFrog.