  This paper deals with the boundary controllability of inviscid incompressible
fluids for which thermal effects are important. They will be modeled through
the so called Boussinesq approximation. In the zero heat diffusion case, by
adapting and extending some ideas from J.-M.~Coron and O.~Glass, we establish
the simultaneous global exact controllability of the velocity field and the
temperature for 2D and 3D flows. When the heat diffusion coefficient is
positive, we present some additional results concerning exact controllability
for the velocity field and local null controllability of the temperature.
