Power Flushing Central Heating Systems
Harpenden, St.Albans, Hemel Hempstead, Welwyn Garden City, Watford and Tring

Is your central heating system slow to warm up? Are your radiators cold or hot at the bottom and cold at the top, do they need frequent bleeding, is the radiator water dirty? Noises coming from your central heating boiler? Has you heating pump broken down? Are your central heating costs too high?

Any of these symptoms with your central heating plumbing could indicate circulation or flow problems resulting from corrosion - rust, scale and sludge build up within your system.

Power flushing is a more efficient and quicker way of cleaning a central heating system and solving typical central heating problems.

It consists of flushing through the whole system using water (and usually a cleaning agent) at high velocity, but low pressure, so that no physical damage is caused to the system.

Power Flushing Before Fitting a New Boiler

Modern boilers are compact with narrow waterways for maximum efficiency so they are more susceptible to problems than older boilers.

When installing a new boiler in an old central heating system, it is important that all sludge and debris is first removed from the system as it could accumulate and affect the efficiency of your new central heating boiler.

Power Flushing to Solve Central Heating System Problems Diagram

Power flush diagram key:

• A: Pinhole perforation, leakage, completely or partially cold radiators
• B: Your radiators in need of frequent bleeding
• C: Cold feed pipe becoming blocked
• D: Repeated pump failures or corrosion deposits in pump casing
• E: Boiler making strange and unpleasant noises

Power flushing cleans the whole of your central heating system removing sludge, corrosive water and descaling in one treatment which can:

• Restore your central heating efficiency and reduce running costs
• Cure flow and circulation problems
• Restore heat output from radiators
• Removes corrosive water within your system and replaces it with a treatment to prevent further corrosion
• Cure boiler kettling noise
• Minimise future heating system problems 

Limescale build up in central heating systems

Most people are familiar with the build up of lime scale on the elements of kettles and immersion heaters in hard water areas in the country, however, scale formation in closed circuit water heating systems is rarely considered.

In central heating systems, scaling is caused by the deposition of either lime or black iron oxide corrosion debris. Lime scale consists of calcium carbonate (calcite) with lesser amounts of other calcium salts such as the sulphate. Sometimes lime scale deposits contain corrosion debris which has become trapped.

Power flushing will break up these hardened deposits and debris, allowing them to be flushed away easily. This will restore central heating systems to optimum efficiency and sort out problems that may have been occurring as a result of scaling, such as banging noises and reduced efficiency.

How We Power Flush an Existing Central Heating System

The central heating pump is removed and the flushing unit, containing its own powerful pump, connected between the pump valves. We add a cleaning solution and flush through the system at high velocity, but low pressure.

Power flushing is a highly effective central heating cleaning method - the sludge, debris and rust contaminating your system are loosened and carried away by the cleaning solution. Each radiator and component of your heating system is individually targetted and cleaned separately. comporadiat 

A thorough system clean takes 3-4 hours from set-up to completion and is done with the minimum of disruption to your home.