|
|
.jpg)
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
 Sludge in bottom of radiator |  Air in system & radiators |
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
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.
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.
|
|
The Green-Side of Power Flush
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).
Copyright SP Corke 2009
