Rising living standards intensify the demand for maintaining temperatures within the human thermal comfort range, yet concurrently exacerbate building energy consumption issues. Building energy use dominates total energy consumption and shows a marked upward trend. Thus, enhancing the energy efficiency of heating systems and reducing their energy demand is critically important. In this study, sodium acetate trihydrate (SAT) was utilized as the phase change material (PCM), acetamide served as the temperature regulating agent, sodium chloride acted as the nucleating agent, and sodium carboxymeth...