We know that the water heating tube and oil heating tube can not be general the main determinant is power per meter (that is, surface load).
Electric heating pipe power of normal heating water is between 1-3KW per meter. If the water quality is hard and the impurities are easy to scale, the design of power per meter should be controlled within 1-2KW.
The electric heating pipe power of heating oil is between 1-2KW per meter. If the oil does not circulate and is relatively thick, the power per meter should be controlled within 1KW.
The density of water and oil, heavy oil than water, heat conduction slow, if the electric heating water works for heating oil, so the surface temperature of electric heating tube can't like heat water quickly absorbed by oil, can cause heating tube surface temperature is too high, will accelerate speed of carbon on the surface of the pipe at the same time, the surface temperature of the high internal temperature will also rise, when high temperature to a certain extent will burn out the resistance wire, so electric heat pipe is burnt out.
