Pro tip: I thought that $90 laser thermometer was a gimmick until I checked my firebox door

Anthony Palmer · 2026-09-29T07:50:03.296411+00:00

I was still using the old hand-on-the-casing trick on the boiler at the plant in Gary, and a buddy handed me his IR gun to check the stack at 640 degrees. Anyone else got a temp reading that made you put down the touch test for good?

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Pro tip: I thought that $90 laser thermometer was a gimmick until I checked my firebox door | Boilermakers - Babble Community