To transfer KU over distances you need to use RU, which can be converted 1:1 into KU without Loss. KU is more of a forward backward motion thing so I dont plan to have an actual long rod transfer that directly without turning it into rotations first.
As for HU, Steam or Coolant are supposed to be the main way to transfer that. While I agree that Metals can conduct heat, you shouldn’t forget that every block is a whole Meter worth of Distance and heat does not easily go that far through Metals.