I did a side by side burn of my 502 stove & 500A stove tonight.
The 500A (left stove) puts out a lot more heat than the 502 stove. I am very impressed. Both put out a good amount of heat. I don't think I will have any problem making waffles on either one.
The strange thing is I put t he same fuel in both stoves & the flames are very different colors.
Jeremy