If you crave sitting by the fireplace snuggled down with someone you love but do not love the mess or the brick and wood motif then look to Crystal Lisa Outset Hole in Wall Unit by Crystal Fires. These beautiful, sleek and modern fireplaces are designed for wall mounted design and only require that the fire pit be inserted into wall. Crystal Lisa Outset Hole in Wall Unit gives any room a beautiful fireplace ambiance with a contemporary feel. The new unit is approximately £429.00 and can be integrated with either electric or gas fires.