For those that didn't read the article the error he made was using a small toaster oven. And then cranking up the heat at the last moment. The oven's thermostat

For those that didn't read the article the error he made was using a small toaster oven. And then cranking up the heat at the last moment. The oven's thermostat is reading the current air temperature. But the heating coils are radiative. A small oven has wild temperature fluctuations. And when the coils are active they put out a lot more heat than whatever is dailed into the thermostat. I recently repaired our iMac GPU after it started acting strange. Baked it in a convection oven for 6 minutes at 160° and not a second more. I also used a heavy baking sheet as a heat sink. I did not need a reflow station and if it failed I would have simply ordered a replacement GPU.