As a general rule of thumb electric tracing is more easily temperature controlled. If you are installing the instrumentation in a hazardous area as defined by the local code you must design your electric tracing system to be in compliance.
For the closest control of your process, use TRACEPAK TPE. It is excellent for maintaining long, continuous lengths of impulse lines and piping at constant temperatures. Use TPE when steam is not available or when the steam supply could be interrupted such as during shutdowns. TPE is perfect for freeze protection, close temperature tolerances, and viscosity control.
Available with one or two process lines and a high or low temperature self-regulating tracer.