There are 2 options available when deciding how to you want the ViiFire Unit installed:
This is when the ViiFire Unit is required to be fitted on the face or the outside of an opening.
This is when the ViiFire Unit is required to be fitted within the reveal or on the indide of the opening.
The choice between these 2 options will affect which type of unit is chosen from the ViiFire Size Chart and must be stated when placing an order.
