Abstract: The present disclosure is directed to systems and methods for direct electrical heating of a fluid conduit, also referred to in one form as a tube. A fluid heating system includes a tube defining a fluid passage. The tube includes a material having a conductivity greater than 1.0 Siemens per meter (S/m) at 20° Celsius. The material is distributed along the tube and the fluid passage defines an inlet configured to receive fluid and an outlet configured to release the fluid. The system includes a first power supply, which includes a first circuit. The first circuit is configured to conduct first electric current across a first portion of the tube and the first circuit includes a first galvanic isolator between a source of the first power supply and the first portion of the tube. The first power supply is configured to heat the tube based on the first electric current.