Curtis Plumbing Heating Service

Why Does My Central Heating Need Power Flushing or a Descale?

Rust occurs in all central heating systems producing a black (iron oxide) sludge and, in hard water areas, lime scale builds up in combination boilers just like in your kettle causing the following problems:

• Dirty black or brown water present when bleeding radiators confirms system corrosion.
• Radiators cold at bottom due to black sludge
• Radiators cold all over due to blocked valves and pipes.
• Irritating boiler noise from sludge or lime scale build up, a warning sign of imminent costly problems.
• Little or no hot water due to blocked pipes and heat exchangers.
• Boiler cutting out and no circulation due to blocked pump.
• Radiators cold at top and need bleeding due to gases, a by product of rusting.