I am assuming you mean moving the controls (not the heater) due to the position of a conversion?
It is possible to move the controls, but only within reach of the cables that operate the system. If you searched hard enough I am sure you could find similar cables that were longer - but I have never taken it that far.
If you do move them, try not to kink or bend the cables much as they get very difficult to operate. I usually try to locate them in the plinth of a unit if possible.