Can this be mounted to the wall?

Looks the exhaust could be routed through a wall but you'd have to build a box around the fan itself. Looks like your ceiling have to have 6" of clearance so your box will down from the ceiling at least that much and the grill is 10" so the box would have to be more than that from the wall.

Hello, you will need to follow up with Project Source directly. I found their information in the owner's manual online at Lowe's. Their phone number is 866-389-8827 or you can email Lowe's at ascs@lowes.com. Thank you