Let me answer as an Swiss who grown up with Cheese Fondue:Wow im late for the party . Will think more about it but one of the last resorts could be a simple fondue set.
A metal fondue pot is more versatile temperature wise. It can heat to higher temps for a good boil, or the flame can be lowered as to not burn the cheese.
A ceramic pot will get hot and bubble your food a bit but may not vigorously boil without some effort. It will also take longer to heat than metal. It is, however, less likely to burn the bottom of your food and make it stick to the pot.
The pot is simple to use with either its ethanol fuel base (just pour and light, ethanol Fondue pot fuel is inexpensive) or heat it with small candles/tea lights under it (some have a base you can buy to ensure they don’t tip over and stay the right distance from the pot.)
Will think about it a bit more and try to come up with something better.
In general your idea isn't that bad.
An real (swiss) fondue pot is an emailed iron pot. The heather is mostly working with spiritus. With candles you may can keep the cheese warm, but not really boiling.