Emergency heat source

It’s been a while since I posted anything on prepping, but just came across this idea, which seemed a good one to share.

Jesse Mann says: This saved our family during the ice storm of 2023. I have a large master bedroom and this kept our bedroom at 65 degrees the entire time the power was off. It’s a crock pot liner. Two three wick candles and two large cans. I hope this helps people who can’t find a heat source in case the power goes out.
Do not solely rely on this, but it can certainly be helpful if you have no other option. A cast iron dutch oven / large pot would work even better!