A professional fireplace service company charges about $400 to do the job (parts and labor). But you can replace the blower with a complete motor/fan blower assembly yourself in about an hour for less than $140.
The secret for a glove-tight fit for trim corners is a coped joint. With this technique you can even make complex crown moldings fit without leaving gaps. Because inside corners are rarely square, simply butting two mitered pieces into the corner almost always looks lousy. The only foolproof method for great-looking inside corners is cutting a coped joint.
After explaining the R-2 to R-3 increase in insulation value and how it disrupts the "thermal bridge" effect, the stuff pretty much sells itself. Thermal bridging is when heat migrates out of the home through the wall studs and other framing components.
Our compact garage workbench has an expanding top that folds out for extra work space and tucks away when not in use. It also has easy-to-assemble drawers and a shelf for convenient storage. And you can build this simple workbench in one day.