Darui Electric recommends for you When storing crude oil in domestic above-ground metal storage tanks, the traditional practice is to install coiled steam or hot water heaters inside the tank to maintain the oil temperature at a certain level. As is well known, steam or hot water coil heaters in oil tanks are prone to damage, extremely difficult to repair, and have high maintenance costs. In addition, there is another critical drawback: the overall thermal efficiency of this heating method is relatively low. To address this, we have developed electric heating rods. Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.