A convetioanl tank heater does a great job heating the water in your engine,but does nothing to heat oil.Cold oil takes time to start flowing when you start your vehicle.Until the oil flows,you are wearing out your engine.

The heater keep your oil warm and flowing no matter what the temperature ourside is.

The configurations works very well on Diesel pickups that have the oil drian plug inthe center of the pan.And other tanks you donot have access to the bottom of the tank.The configuration allow you to put one pad on each side,and give nice even heat.The application also work well on other tanks you spread out the heating surface.