Hybrid nanofluids have proven its favorable impact in terms of thermophysical properties, heat transfer rate and stability. Many distinctive features of hybrid nanofluids offer an astonishing potential for many heat transfer applications. In this paper, we summarized the factors affecting the performance of hybrid nanofluid in enhancing the thermal performance of heat transfer systems. The conclusions and important summaries were also presented according to the data collected. (c) 2017 Elsevier Ltd. All rights reserved.