First of all, it is important to clarify whose cause the heater leak was.
If the hospital itself is at fault, it is required to bear the liability. Need to compensate the other side of the actual loss, if the heating company's fault caused, you can ask the heating company to bear the responsibility for compensation. If no heating pipe modification has been done and no heater has been replaced, there should be no liability and compensation should be made by the heating operator or the property. Perhaps the only thing to consider is whether the property was notified in a timely manner. If there was a leak in the hospital and the property was notified in a timely manner, then it's fine. Meanwhile if the heater was replaced, if it was the heater that leaked it would have something to do with the hospital. If it is not the heating leak is the original pipeline that is not the responsibility of the hospital.