Temperature structure of the IRS 48 disk as computed by DALI, using the gas and dust density profile derived by van der Marel et al. (2016) for the full models (dust increase across the column). The columns show the influence of the assumed dust surface density (or dust-to-gas ratio, as the gas surface density is set constant) on the UV field and gas temperature. The white contours in the temperature plots indicate steps of 20 K.