The Block NZ

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System Treatments

System treatments keep central heating systems running smoothly so that they remain at their most effective and most efficient. We stock Fernox treatment products, which are proven to prevent the corrosion that occurs when the metals in the system react with water.

Two of the major culprits in system failure and inefficiency are black oxide sludge and scale. In an unprotected system, black oxide sludge develops, forming sediment deposits in areas of the system with less active water flow. This buildup is one of the primary causes of problems in pipes, radiators and boilers. Scale, which can cause heat loss, lowered efficiency and mechanical failure, forms when hardened lime deposits are attracted to the pipes, radiators, boilers, and other hot parts of the system.

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