How can we keep hot apple cider hot in a black cauldron without starting a huge fire? Just want the effect....?

Question

Every year when i was a kid, our neighbor would put out a cauldron with hot apple cider in it and serve to all of us on Halloween. I am doing an Halloween fundraiser event and would love to do the same as he did. We have a huge black cauldron but would rather not use it due to the heavyness and the fact we would have to stoke the fire all day. Does anyone have any ideas of ways to keep apple cider hot so it can be served in a cauldron? It can be table top, we just want the effect any help would be great. THANK YOU IN ADVANCE!!!

Answer 1

I always made it in a large coffee urn, and put the whole spices in the basket for the coffee grounds.  But, you could set the cauldron on a warming tray (Salton makes them).....

Answer 2

use  an electric hot pad

You know,, like for your back

use duct tape to hold it in place and use foil to hide it

Then there is always is Sterno but that is fire