The exhaust fan on the SMK9175ST can be set up to vent outside from the rear or top of the unit, or filtered air can be recirculated into the room from vents located in the front that are concealed from view. The Speed Oven can be plugged into a standard 110V outlet, but requires a dedicated 20-amp circuit.
For more information, please feel free to download a pdf file of the installation instructions through this link: http://ars.samsung.com/customer/usa...
Please note that these instructions are the same for all Samsung over the range microwaves, and are not specific to any one model.
Thanks for your interest!
answered 3 years, 5 months ago