  We investigate the scaling behavior of the critical temperature of
anisotropic QED in 2+1 dimensions with respect to a variation of the number of
fermions N_f. To this end we determine the order parameter of the chiral
transition of the theory from a set of (truncated) Dyson-Schwinger equations
for the fermion propagator formulated in a finite volume. We verify the
validity of previously determined universal power laws for the scaling behavior
of the critical temperature with N_f. We furthermore study the variation of the
corresponding critical exponent with the degree of anisotropy and find
considerable variations.
