alfter.us - Heatstick Construction

Burners & Electric Pot Heaters - High Gravity

Here are two examples but I can't find the best one. These won't work with solid oil. You must have liquid around the element.

McMaster has drum heaters that wrap around a drum but they aren't cheap. One of those might give you liquid to work with.

Find Sandhog Long Life II Heating Element, 4500W x 240V and other Water Heaters at Aubuchon Hardware this is the heater element I bought.