  We revisit a model describing Seebeck effect on a weak link between two
charge Kondo circuits, which has been proposed in the [Phys. Rev. B 97, 085403
(2018)]. We calculate the thermoelectric coefficients in the perturbation
theory assuming smallness of the reflection amplitudes of the quantum point
contacts. We focus on the linear response equations for the heat conductance in
three different scenarios as: Fermi liquid vs Fermi liquid, Fermi liquid vs
non-Fermi liquid, nonFermi liquid vs non-Fermi liquid. The oscillations of the
heat conductance as a function of the gate voltage of each quantum dot are
analysed in both Fermi liquid and non-Fermi liquid regimes. We discuss possible
experimental realizations of the model to observe the signatures of the
non-Fermi liquid behaviour in the heat conductance measurements.
