Hello, I just made a nuclear powerplant and I'm trying to generate heat from the uranium by using the PUMP element, but whenever i close the game and return to the save, the three pump blocks witch should have the temperateure of 0.20 °c each, have 0°c and the uranium cools down. Does anyone know why this is happening and how to fix it?

save: 2204695

I will try, thanks for the information!