  Collapse models postulate that space is filled with a collapse noise field,
inducing quantum Brownian motions which are dominant during the measurement,
thus causing collapse of the wave function. An important manifestation of
collapse noise field, if any, is thermal energy generation, thus disturbing the
temperature profile of a system. The experimental investigation of
collapse-driven heating effect has provided, so far, the most promising test of
collapse models against standard quantum theory. In this paper, we calculate
the collapse-driven heat generation for a three-dimensional multi-atomic
Bravais lattice, by solving stochastic Heisenberg equations. We perform our
calculation for the mass-proportional Continuous Spontaneous Localization
collapse model with non-white noise. We obtain the temperature distribution of
a sphere under stationary-state and adiabatic surface conditions. However, the
exact quantification of effect highly depends on the value of cutoff in the
collapse noise spectrum.
