Power Flushing
Power flushing is cleaning rust and scale
debris out of radiators, pipes and boilers as thoroughly as possible using all
means available and will guarantee the efficient operation of a central heating
system. Power flushing a central heating provides long term protection. The
power flush process includes a power flush machine, power flushing magnetic
filter, chemicals, heat, surface temperature readings, vibration and corrosion
inhibitors. Often it may also include checking for and clearing blockages (e.g.
cold feed), attempting to clean the hot water side of combination boiler plate
heat exchangers, divertor valves, thermistors and trying to reduce boiler
kettling.
To book an appointment please email or telephone on 01787 319541 or 07774
420409
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The Importance of Power Flushing
The single biggest factor
why power flushing is growing so quickly as a vital part of boiler installation
is the high risk of blockages in low water content plate heat exchangers, and
other sensitive components in combination boilers such as divertor valves,
thermistors.Some large service companies and boiler manufacturer engineers
prefer to fit strainers or magnetic filters on return pipe work to protect their
boilers, and while it is of benefit, most believe they are only an addition to
having thoroughly cleaned the system first. Without halting the corrosion
process the boiler will become contaminated. Even large power flushing magnets
do not pick up all corrosion debris in one pass (the clear chambers allow the
rust to be seen). And, of course, filters do not stop the rest of the system
becoming blocked by rust, air-locked from corrosion by-product gases, or
simply corroding away. Replacing system pipe work is probably the most expensive
and disruptive central heating project an existing home owner faces and so
avoiding this where possible is essential
When a Power Flush is Required
Rust occurs in all central heating systems producing a black (iron oxide) sludge causing the following problems: Radiators are cold at bottom due to black sludge. Radiators are cold all over due to blocked valves and pipes. Radiators are cold at top and need bleeding due to gases, a by product of rusting. Boiler cuts out and no circulation due to blocked pump. Little or no hot water due to blocked pipes and heat exchangers. Irritating boiler noise from sludge or lime scale build up, a warning sign of imminent costly problems.
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The Green-Side of Power Flushing
Power flushing does save fuel and therefore cost, probably
quite significantly, but it is the ability to extend the life of the pipe
systems, therefore reducing the need to replace copper pipe work, and repair
damage to floors & walls, and the later redecorating and floor fixing which
is a huge benefit both environmentally and financially. When measuring
efficiency it is vital to measure from cradle to grave (e.g. energy required to
extract, ship and fit copper, energy required for recycling and disposal
etc).
