Thermal contact conductance (TCC) is crucial in characterizing interfacial heat transfer in practical engineering applications. The present study considers the effect of contact pressure, surface roughness and interfacial temperature on TCC across two different specimen pairs under gaseous environment. Thermocouples and infrared thermography are implemented to measure the steady state axial temperature distribution across the contacting specimen. Thermocouple provides the temperature across the centreline of the contacting specimens, whereas infrared thermography captures the surface temperature. It has been observed that there exists a difference between the centreline and surface temperature at a high value of interfacial temperature. In this regard, a new perspective is defined to visualize the interfacial heat transfer through temperature contours and heatline visualization. Result shows that TCC increases with increase in contact pressure and interface temperature while decreases with increase in surface roughness. Temperature contour and heatline visualization is used to get insight of interfacial heat transfer and provide a basis to explain the TCC variation for different experimental parameters.