An improvement of the Albritton nonlocal electron heat transport model is proposed for high‐Zplasmas. The thermal decay of the temperature perturbation in a uniform plasma as calculated by this model is compared with that obtained by Fokker–Planck simulations. Complete agreement is found up to valuesk&lgr;e&bartil;0.1, wherekis the wave number of the perturbation and &lgr;eis the thermal electron mean‐free path.