Home routers, like any other electronic device, heat up under normal operation. A router running for a few hours will feel warm to the touch, but if the heat is uncomfortable, it worth investigating the cause behind the router overheating. Home Wi Fi routers contain several electronic components, including processors, memory, wireless radios and power management modules. And modern routers are increasingly using a system on a chip SoC architecture, running something like Broadcom BCM6765 SoC...
