I searched high and low for a water heater both on demand and the same as original, everyone I talked to just had a puzzled look on thier face when I talked about engine coolant in a water heater, both rv places and water heater places, I didnt even bother with any marine dealers, but i am sure they would be able to order one in. All the places I looked didnt even have a new element for my old one, until I stopped in at the small town hardware store in Sexsmith, and low and behold covered in a bit of dust with the package that has some damage on it was an element for the water heater!! 1500watt Not sure how long it was sitting there for but it sits there no longer!!