  We discuss the charge and the spin tunneling currents between two
Bardeen-Cooper-Schrieffer (BCS) superconductors, where one density of states is
spin-split. In the presence of a large temperature bias across the junction, we
predict the generation of a spin-polarized thermoelectric current. This
thermo-spin effect is the result of a spontaneous particle-hole symmetry
breaking in the absence of a polarizing tunnel barrier. The two spin
components, which move in opposite directions, generate a spin current larger
than the purely polarized case when the thermo-active component dominates over
the dissipative one.
