  We considered a mesoscopic superconductor/normal metal (S/N) structure in
which the N reservoirs are maintained at different temperatures. It is shown
that in the absence of current between the N reservoirs a voltage difference
$V_{T}$ arises between the superconducting and normal conductors. The voltage
$V_{T}$ oscillates with increasing phase difference $\phi $ between the
superconductors, and its magnitude does not depend on the small parameter
$(T/\epsilon_{F}).$
