As a follow on from the above, my intention would be to plaster up to the opening for the fire, leaving a clean edge around the opening, tile whatever bit of the floor doesn’t have timber, and put a stove there instead. Or if there is timber flooring all the way to the wall I’d consider blocking up the opening and putting a media unit there instead with the stove in the corner of the room at the gable end.
As a follow on from the above, my intention would be to plaster up to the opening for the fire, leaving a clean edge around the opening, tile whatever bit of the floor doesn’t have timber, and put a stove there instead. Or if there is timber flooring all the way to the wall I’d consider blocking up the opening and putting a media unit there instead with the stove in the corner of the room at the gable end.