Research regarding fire phenomenon had been rapidly developed as fire incident could occurs frequently. In order to assess the fire incident itself, a measuring test rig that could simultaneously measure heat release rate and smoke release from various fire phenomenon could be implemented. Fire safety engineering research group within the Department of Mechanical Engineering Universitas Indonesia has been allocated a new space for future laboratory development. Therefore it is necessary to design a compact test rig arrangement that capable for carrying measurement of various fire phenomena and for education purposes. In designing a Large-Scale Fire Calorimeter, we need to incorporate safety and security aspect. One of those aspects is generated smoke that could spread throughout the laboratory. To reduce the risk associated with smoke spread, we utilize a fan with specification fits the smoke production yielded during fire test. A ducting hood with dimension of 5 x 5 m also installed to collect smoke prior to the duct line. This research analysed the sensitivity of the flow field of smoke movement by suction power of fan during various fire load and observed its capability in controlling smoke from fire test by carrying series of fire simulation using Fire Dynamic Simulator (FDS) version 6.