What issue does calcium and magnesium cause in a boiler?

Calcium and magnesium contribute to the formation of scale in a boiler system. This happens because these minerals, when present in the water at high concentrations, can precipitate out as solid compounds when water is heated. Scale forms on the interior surfaces of the boiler and can significantly reduce heat transfer efficiency, leading to overheating and potential damage to the boiler. The presence of scale can also create hotspots, which can lead to structural failure over time.

Addressing scale formation is crucial, as it not only affects efficiency but also increases operational costs due to the need for more energy to maintain desired temperatures. Effective water treatment practices, such as softening the water or using chemical additives, are implemented to mitigate the risks associated with calcium and magnesium in boiler systems.