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This paper presents a study, numerically and experimentally, on a new thermal enhancement method for improving the heat transfer performance of latent heat energy storage (LHTES) using miniature heat pipes (MHPs). As commonly known, heat pipes are passive heat transfer devices which are capable in transferring large amount of heat with a small temperature drop. The heat pipe used in this study is copper-water charged MHP and has physical dimensions of 2 mm diameter and 100 mm long. The phase change material (PCM) used in the LHTES is paraffin wax (RT60) which is an organic based PCM and has a melting point of 60 °C. The attractive thermal features of using PCM as thermal mass are high heat capacity, exhibit constant temperature during phase change and poor thermal response. However, the poor thermal conductivity (∼0.2 W/m·K) of the PCM has greatly limited its potential to be used as …