Firebox Corrosion Analysis with Pictures

[salecker]

So I happened to be in my boiler building today with some extra time.
Took a picture of the inside of the burning chamber
And one of my hand after rubbing the roof of the chamber
Then I tried to clean around one of the stays. No sign of any moisture. It was hard caked on creosote
I chipped it off around the stay and cleaned the weld as good as I could.
I feel that by the appearance of the weld and surrounding metal that my boiler is experiencing zero corrosion on the fire box side of the metal
I don’t know anyone with an ultrasonic measuring device to prove me wrong.
It’s been a couple weeks since my last fire and the boiler temp is below 70F as that is as low as the gauge goes and the needle is sitting on the peg