Results of the experimental fits to determine the temperatures and masses of the box (upper panels) and of the clumps (lower panels). Three prescriptions for the dust thermal profile are investigated: full MC radiative transfer calculations (in red), thermal equilibrium between the dust and the gas components (in blue), MC radiative transfer with external radiation source (ISRF; in green). For the box mass and temperature determinations, two approaches are employed: assuming an average constant temperature for the entire box (solid lines) and pixel-by-pixel fittings for column density reconstruction (dashed lines).