refractory insulation repair

https://mycombustionemissionscentral.birchreport.com/posts/navigating-combustion-emissions-compliance-for-industrial-boilers

Refractory insulation repair is something you hope to avoid, but when it's needed, you have to act fast. I've seen it happen after a furnace overheat or years of thermal cycling, where the bricks start spalling or the ceramic fiber blanket just crumbles. You can't just slap in new material; you have to evaluate the damage, match the thermal properties, and ensure the patch bonds well with the existing lining. A hasty fix can lead to hot spots or even a complete failure down the line. Getting it…