In a low-carbon world, using cheap electric energy storage for heating in communities could not only reduce dependence on fossil fuels, but also reduce the heat loss caused by long-distance transportation. The Thermal Storage Heating System (TSHS) was commissioned in 2021, and the charge and discharge of heat at high temperatures (550 °C) have been studied, and this paper mainly focuses on the theoretical and experimental analysis in the low-temperature range (300 °C). A one-dimensional two-phase numerical model was developed, and the model fitted well with experimental results with a mean standard deviation of the model below 20 °C for the temperature profiles.