In this study. conceptual design for primary heat exchanger of the Molten Salt Fast Reactor is made. The design was carried out to remove the produced heat from the reactor developed under the SAMOFAR project. Nominal power of the reactor is 3 GWth and it has 16 heat exchangers. https://www.spidertattooz.com/Muumi-lyhty-kulho-metsassa-8cm/