By using a global pressure gradient model deduced from satellite drag data the momentum and the mass conservation equations are solved to obtain the neutral wind vector at mid-latitude. In this computation the ion drag term is calculated from incoherent scatter measurements at Saint-Santin (France). Then the most important terms of the energy conservation equation are calculated, and the relative importance of dynamical heating processes is deduced and compared with direct EUV heat input. The model used in the computation is roughly consistent with solar EUV heating if vertical and horizontal transport effects are included in the energy balance equation.