Are you looking for high efficiency combined with a minimalistic design?  If so, the Cuatro-2 is exactly what you're looking for.  A powerful built in fire which can be just as easily applied to an existing location.

Three identical models, from the discreet Cuatro-2 60, with a capacity of up to 10kw, to the Cuatro-2 80, which can heat even the largest room with its 12kw capacity.

Especially for those situations in which space is lacking, Barbas offers the Unilux-3.  Due to its shallow installation depth it is ideal for small, existing fireplaces.  Of course it is also perfectly suitable for any new build creation.  One model, two sizes, both equally compact.

If you would like the character of an open fire and the efficiency of an economical woodburning stove, opt for the Universal-5 range.  Due to its standard dimensions, the Unilux-5 is perfectly suitable for an existing situation.  This beautifully designed line offers you a choice of six models, in various sizes.  From compact and cosy to large and high capacity.  With an optional convection set and a powerful fan system for the swift distribution of heat.