Can Heat Transfer Through Conduction Occur at Relativistic Speeds?

[Josh0768]

Are there any known instances of heat transfer via conduction or convection happening at relativistic speeds? Is this even possible or is there a non-relativistic limit to how fast heat can transfer in these ways, like how sound can only move so fast?

 

[Vanadium 50]

Heat transfer from radiation happens at the speed of light. What other speed would it happen at?

 

[Josh0768]

Heat transfer from radiation happens at the speed of light. What other speed would it happen at?

I asked about heat transfer from conduction.