Can this be wired to a wall switch?

Yes the Napoleon BL46 can be operated with a low voltage wall switch that is connected to the ignition control module (see manual for details). The fireplace requires a separate 120V power supply to the junction box in the valve area below the fire chamber that powers the ignition system and any accessories. The 120V supply does not need a wall switch and 120V should not be wired directly to the ignition module. Please give us a call if we can help further. Thanks!