Power Flushing

Why power flush your central heating system?

Central heating systems can get clogged up with sludge, corrosion deposits and hard water scale over time blocking pipework and radiators reducing the efficiency of the system. This is a result of natural chemical reaction within the central heating system.

According to The Energy Saving Trust: Corrosion deposits in an older central heating system can cause a substantial reduction in the effectiveness of the radiators, and the system as a whole – up to a 15% reduction.

Power flushing your central heating system removes this sludge, deposits and hard water scaling making your heating system more efficient and saving you money on fuel.

When fitting  a new boiler do I need a powerflush?

A powerflush will ensure your new boiler operates within a clean circuit, gives you the greatest benefit and reduces the likelihood of future problems.

Many central heating systems are found to contain corrosion and sludge, even if no flow problems have yet shown themselves. Sludge and debris in the system is often mobilised by alterations to pipework and the increased efficiency of the new boiler. This may then accumulate in the boiler heat exchanger, causing noisy operation, reduced efficiency and may even cause the new boiler to fail much sooner. The high efficiency and compactness of modern boilers, developed to minimise fuel costs and pollution, means that they are more susceptible to problems caused by debris in the system water.

Signs that your heating system needs power flushing?

Does your central heating need power flushing

Your central heating system may need a power flush if you have circulation or boiler noise problems:

  • Your radiators do not heat evenly with cold patches at the bottom, or just don’t heat up properly, or just stay cold
  • Your radiators need bleeding often
  • Your boiler makes strange noises
  • Repeated pump failures
  • Your central heating system just doesn’t work properly
If your central heating needs power flushing call Steven Banks on 01462 636376

How does power flushing work?

Water and chemicals are pumped through your central heating system at pressure to remove all sludge and deposits.

The power flushing pump is connected into your central heating system typically in place of your standard heating pump. The powerful flow, combined with instantaneous flow reverser device, will dislodge and mobilise deposits and corrosion.

Once the corrosion and sludge deposits have been loosened and mobilised, fresh clean water is forced through the heating system, pushing the contaminated water out through a full bore dump valve to waste.

Radiators are individually flushed, without removing or disconnecting them from the system, by directing the full output of the pump through each radiator separately.

At the end of the flushing process, the system contains fresh clean water and chemicals are then added to inhibit corrosion in the future.

Chemical inhibitors

Using chemical inhibitors in central heating systems can maintain their efficiency – helping to save money on heating bills and reduce your energy consumption. Using an effective chemical inhibitor can decrease the corrosion rate and prevent the build-up of sludge and scale – preventing system deterioration and helping to maintain efficiency. Typically, it can increase boiler efficiency by around 3% according to the Energy Saving Trust.

If your central heating needs power flushing call Steven Banks on 01462 636376