Why Does My Central Heating Need a Powerflush or 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:
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Radiators cold at bottom due to black sludge. Powerflush |
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Radiators cold all over due to blocked valves and pipes. Powerflush |
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Radiators cold at top and need bleeding due to gases, a by product of rusting. Powerflush |
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Boiler cutting out and no circulation due to blocked pump. Powerflush |
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Little or no hot water due to blocked pipes and heat exchangers. Powerflush or Descale |
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Irritating boiler noise from sludge or lime scale build up, a warning sign of imminent costly problems. Powerflush or Descale |






