You can get something like this https://www.amazon.com/Flame-King-YSNAX1-092-Propane-Torch/dp/B08DDHWVFX and then an adapter like https://www.amazon.com/GasOne-Propane-Refill-Adapter-refills/dp/B077SP5BJP. But, I was thinking about this yesterday. Between the cost of the torch, the bricks and a few other parts to keep it all together, it may be cheaper to just buy something like the 1-burner Mr. Volcano (currently $88 on Amazon)