The natural convection flow from a heat point source embedded in a non-Darcian porous medium is investigated by employing local similarity and modified Keller’s Box methods. The non-Darcian effects of convective, inertia and thermal dispersion are all considered. The results indicate that the non-Darcian effects decrease the centerline velocity and temperature and also increase the velocity and temperature boundary layer thicknesses. In addition, solutions using the local similarity method overestimate the centerline velocity and temperature.