Preventing Corrosion in Heating Systems

A few simple precautions can avoid your system having problems like sludge build up and pinhole leaks.

Cause of corrosion

Air getting into the system accelerates deterioration as oxygen is one of the essential requirements for corrosion. You’ll know if air is stepping into because the radiators will need bleeding to urge obviate the air on a frequent basis.

Where the air gets in though is another matter.

It can enter through sort of routes, but the foremost common are through the feed and expansion cistern within the loft, the vent pipe which hangs over it or a leaking joint beside the pump.

Unfortunately, whilst it’s possible to identify these, it’s always employment for knowledgeable heating engineer to put it right.

Testing for corrosion

It’s an honest idea to feature a corrosion inhibitor to scale back the gradual deterioration of the system. Test a sample of water from your system annually to ascertain how corrosive it’s. Place the sample in an old jam jar and put a shiny steel nail in it. Remember to not use a galvanised nail or the test won’t work. Put the lid back on and leave the jar for every week approximately. If the water has turned orange and therefore the nail is rusty, the water has an excessive amount of oxygen and can be corroding the within of your system within the same way. You’ll therefore got to put an additive into the system to scale back this. adding corrosion inhibitor

Adding corrosion inhibitor

Read the manufacturer’s instructions carefully and add the acceptable amount of the anti-corrosion liquid. With an open vent system, this is often done by adding to the feed and expansion cistern. For a sealed system, you’ll buy a cartridge of inhibitor which may be injected in via the air bleed valve on a radiator – again, you ought to carefully follow the manufacturer’s instructions for this.

Edinburgh Central Heating Services offer free estimates and range of skills. A 24-hour emergency plumbing service is also offered. For more information visit or telephone 0131 5102418