I do smoked BBQ pork spareribs for vintage tractor shows and similar events here in Northern California and am tired of spending a fortune on Sterno. Sterno makes food warmer candles that they claim will last for 15 hours and can be bought by the gross at $0.35 per candle on Amazon.
I haven't found a way to buy just a few or I wouldn't ask.
Has anyone ever used these? I'm skeptical that the heat level will be adequate compared to gel. If it is, I'm surprised they aren't mentioned more often.