Hi, in a past post I wrote that the HT Black silicone was good for places where the temp. was not very high. But when restoring the Sunnyside, I made an error when I used HT silicone on a place where the temp. is too high for it.
It is for the top chamber, at the back of the stove. The by-pass for the direct and base burning modes is located there and when I made the second fire outside of the house, I realised that I placed the thermometer on the top of the stove but 3/4 on the top of the convection chamber. The convection system should work very well cause as soon as I put the thermometer on the top's center, the temp. rised from 400*F to 600*F. I changed the air controls to the closed position and the temp. slow down rapidly. But the silicone was beginning to degade, so I will dis-assemble that section and do it with HT Furnace cement.
All that to say that it's very IMPORTANT to use HT silicone only on places where we are SHURE the temp. will be below the silicone's temp. rate.
I hope I didn't induce many readers in my error.