Slices through the chromosphere after 3850 s of the simulation, showing temperature in the left column and vertical velocity in the right column. Slices in the horizontal plane are taken through the low chromosphere (panels a and b) and the upper chromosphere (panels ɡ and h). The middle rows show vertical slices through a quieter inter-network region (panels c and d) and through the centre of the network field (panels e and f). An animation is available online.