| Repairing or replacing your central heating system | | | | water in your central heating system creates a |
| can be an expensive process. By taking a few | | | | thin film on the surface of your pipe work |
| preventative measures you can greatly reduce | | | | thereby decreasing the rate at which the metals |
| the amount of problems you are likely to | | | | and alloys within it corrode when in contact with |
| experience over the lifespan of your central | | | | water. |
| heating system. | | | | The correct quantity and type of inhibitor will |
| This will not only save you money by making | | | | substantially reduce the effects of corrosion. In |
| your system less susceptible to breaking down - | | | | some cases by as much as 90%. Inhibitors are |
| but actually prolong the efficient working life of | | | | commonly added to a central heating system |
| the boiler. | | | | after a power flush has been performed. |
| Over time your central heating system will | | | | 1. Install a filtration system |
| accumulate a number of compounds that are | | | | As mentioned earlier your gas central heating |
| detrimental to the efficient operation of your | | | | system may contain a lot of corrosion and lime |
| boiler - such as lime scale and iron oxide. The iron | | | | scale which will ultimately damage your boiler, |
| oxide compounds are created by the slow | | | | pumps and valves. A water filtration system will |
| corrosion of your central heating pipes and | | | | remove particles and compounds that are freely |
| radiators, and the lime scale is created by the | | | | circulating through your central heating system |
| precipitation of the calcium compounds out of the | | | | preventing these particles from entering your |
| hot water itself* | | | | boiler and pumps and clogging them up! |
| Iron oxide takes on the appearance of black | | | | Numerous filtration systems are available on the |
| sludge in your central heating system and Calcium | | | | market today and many will incorporate a |
| Carbonate will resemble the white chalky lime | | | | magnetic filter to remove the iron oxide (rust) |
| scale in your kettle at home. | | | | created by the corrosion of your system e.g. |
| Both of these compounds stick to the surfaces | | | | Magnaclean. |
| of your system causing premature failure to your | | | | 1. Regularly servicing of your boiler |
| heat exchanger (inside your boiler) hot water | | | | An annual service of your boiler will extend the |
| heating coils (inside your cylinder) valves, and any | | | | operational lifespan of your central heating system |
| pumps you have installed. | | | | by indentifying any faults or progressive defects |
| Having these compounds stuck to the inside of | | | | manifesting in the system. It will also reduce the |
| your central heating system will also significantly | | | | cost of repairs and decrease the chances of an |
| affect the efficiency of your boiler by reducing | | | | outrightboiler failure - as faulty valves and pumps |
| the heat transfer of the circulating water within it. | | | | can be replaced as they wear and before their |
| An inefficient boiler will of course burn more fuel | | | | failure puts unnecessary strain on the rest of the |
| than necessary and with energy prices the way | | | | system. |
| they are this in turn will cost you money! It will | | | | Faulty gas appliances are a serious hazard to |
| also increase your carbon footprint and your | | | | health so the most important benefit derived |
| personal impact on the environment. | | | | from having your boiler serviced is the knowledge |
| By following the tips below you will be helping | | | | that your boiler is safely functioning and is of no |
| prevent:- | | | | danger to you or your family. |
| - Pump failures | | | | 1. Use the services of a reputable, reliable gas |
| - Radiator cold spots and failures | | | | company |
| - Radiator leaks | | | | Reputable and reliable gas engineers can be hard |
| - Boiler noises | | | | to come by when you need one most. By |
| - Boiler breakdowns | | | | anticipating your future needs and developing a |
| 1. Powerflush your central heating system | | | | strong relationship with a company or engineer |
| A powerflush or power flush is the process by | | | | specialising in central heating, you can avoid the |
| which a machine is connected to your central | | | | time consuming and sometimes frustrating act of |
| heating system to dislodge and remove the build | | | | trying to book an engineer to service or repair a |
| up of compounds within it. This is achieved by | | | | faulty boiler. |
| vibration and the pumping of water at high | | | | Companies like can organise an annual boiler |
| velocity but low pressure (to prevent damage) | | | | service for a fixed fee and provide you with |
| through the system until clean. | | | | same day services should you have a problem |
| Chemicals are incorporated in to the process at | | | | that requires immediate repair. |
| the start and the end to assist with the removal | | | | They will also keep detailed records of your |
| of debris and also to prevent future corrosion. | | | | central heating system on file, and will be able to |
| A strong magnet is often incorporated in to the | | | | notify you in advance of repairs or replacements |
| machine to remove iron oxide and other metallic | | | | required that may have been identified when they |
| compounds present in your system. | | | | serviced the boiler. |
| 1. Use a corrosion inhibitor | | | | This continuity will save you time and money in |
| As mentioned, metal within your central heating | | | | the long run as in many cases the diagnostic |
| system will corrode over time. | | | | process will be reduced or eliminated. |
| To prevent this process taking place or more | | | | (*Calcium Carbonate is present and soluble in cold |
| accurately to delay this process, an inhibitor can | | | | water however when the water is hot it |
| be added to your system. An inhibitor is a | | | | precipitates in to the chalky white substance you |
| chemical compound which when added to the | | | | may be familiar with inside your kettle! |