Thermal conductance ($G=1/R_{\mathrm{th}}$)

Thermal conductance is the heat transfer rate divided by the driving temperature difference in a linear contact model. It is the reciprocal of thermal resistance, with units $\mathrm{W}{\mathrm{K}}^{-1}$; thus $\dot{Q}=G(T_1-T_2)$ for heat transferred from body 1 to body 2.