The multi-sided unit allows visual from two or three sides depending on the unit. When installing multiple opening units we recommend gas units above wood burning simply for all the issues that can arise in today’s very well insulated and sealed homes. Ask us to elaborate on theses annoying issues that can arise. But you can avoid these by using a dependable gas “pier, or peninsula direct vent gas fireplace. Order it with the openings the way it fits your room. It is a design oriented unit. There are many options. We will be glad to help you choose the ones that work for you.