Top row: intensity of three EUV AIA filters for the total column mass case (i.e. all regions). The three red cycles, selected in 171Å filter at t = 2990, track intensity at every time-step. Second row: same as in top row but for regions that exhibit only heating events (i.e. flaring). Third to fifth rows: plots of the evolution of intensity. Red coloured lines depict intensity calculated assuming total column mass, while blue-coloured lines depict intensity evolution for regions that exhibit only heating events. Pixel size is the simulations pixel size.