This paper reports the experimental heat transfer coefficient measured during the condensation of R134a inside a copper microfin tube with a helix angle of 14° for vapour qualities of 0.1 – 0.9, mass fluxes of 200 – 600 kg/m2s, saturation temperatures of 40°C and inclination angles ranging between –90° (downward flow) and +90° (upward flow). The test condenser was a tube-in-tube heat exchanger, with the micro finned tube being the inner tube surrounded by an annulus. The inclination of this condenser could be altered depending on the test scenario. The heat transfer enhancement in the microfin tube was between 1.07 and 2.38 time that of the smooth tube depending on the inclination angle for mass flux of 300 kg/m2s. However, the optimum inclination angle obtained for the experiment using microfinned tube was between -10° (downward flow) and -5° (downward flow) as against -15° (downward flow) and -30° (downward flow) in smooth tube. Similar to the smooth tube, the heat transfer coefficient generally increases with the mean vapour quality and mass flux.