While doing yard work I accidentally cut through the power cord (which was hidden under a hosta that I was trimming) of our RT 700. Does anyone know if this cord can be easily replaced? My husband is devastated because it is his favorite possession, and it was my fault. The cord appears to be hard wired into the heating unit and we have not yet tried to take it apart. I have an email into the company and plan to call tomorrow when they are open, but was hoping someone out there might know if there is an easy fix.