The solar Rang, which integrates the positive features of the solar air collecting system and the conventional Chinese Rang, could serve as a low-polluting heating device alterative to the traditional Rang, feasible for the rural households in northern China. On the basis of the dynamic heat transfer model developed in the previous work, we conducted a series of numerical parametric analysis in the light of energy storage of the Rang body, energy distribution, and temperature variations of the upper Rang plate. It was found that the solar Rang body normally absorbed most of the airflow heat input due to large convective heat transfer area in the air space. The thermal physical parameters of the upper kang plate, including the thermal capacity and the thermal conductivity, had significant influence on the kang's heat transfer process and the according temperature variations. The results from this numerical study could be useful for the thermal design of such new local heating systems. (C) 2014 Elsevier B.V. All rights reserved.