what does it mean to RE-CEMENT a boiler and what does it do?
Older Boilers are lined with refractory cement. This is an insulation layer of concrete used to keep a firebox in a boiler from losing valuable heat and it also protects the firebox from metallic overheating which can cause structural failure over time. Your boiler's cement has started to fall apart and the process of Re-Cementing repairs that failure, making the firebox patent and safe again for heating.
