Results for the non-uniform coronal heating pulse using one-dimensional HD simulations of the unsheared arcade (Sect. 3.3). The panels show the coronal averaged temperature (left-hand column) and density (right-hand column) at y = 1.2 Mm, as functions of time. The various curves represent different values of N_x, which converge as N_x increases (higher spatial resolution in the field-aligned direction is associated with larger N_x). Rows 1 and 2 correspond to simulations run with the HD implementation of TRAC (Sect. 2.2.1) and the SH conduction method, respectively. The lines are colour-coded in a way that reflects the conduction method used.