Leaking Boiler

· 3 min read
Leaking Boiler

Do you've got a leaking boiler?


Assuming you have a boiler that you might think is leaking, but cannot see any form of leak, what now ??

First  Bathroom Fitters Colchester  have to establish which kind of boiler you have, is it a combination boiler, system boiler or heat only boiler.

With combination and system boilers they work under high pressure, with heat only boilers they are sometimes are pressurised, or work under low pressure.

With all boilers which are pressurised there will be a pressure gauge suited to either leading of the boiler or close by on the pipe work.

A leaking boiler is not always a leaking boiler, I know that may sound strange, but it's true. All these boilers working under ruthless should have an expansion vessel fitted either internally or externally, that is normally the cause of a leaking boiler.

Just how do we resolve the leaking boiler problem?

First you ought to have your boiler serviced each and every year without fail, in the event that you decide never to have your boiler serviced then at sometime in the foreseeable future you will have an expensive repair bill and even the cost of a fresh boiler.

So why is it vital that you have your boiler serviced?

The days of not bothering to service your boiler have over, these boilers were very basic rather than much went wrong with them, the most common problem was that the thermal coupling had to be changed. These boilers weren't very efficient around 40% of your fuel bill went of the flue and the other 60% into you're heat.

Since the introduction of the high efficiency condensing boilers it has been very important to possess them serviced each year. These boilers are designed to give the best performance and most of all save you on your own energy bill.

When a boiler service is carried out we are looking first to be sure everything is still safe, that there are no combustion or gas leaks, checking over the flue making sure the merchandise of combustion are exiting to the exterior as they should.

We take a combustion reading with a combustion analyser and be sure the boiler when running is at the boiler makers parameters, if the reading are not correct then we carry out further investigation to discover why, then reset.

Next we arrived at the most typical problem with these boilers.

The expansion vessel, The expansion vessel is really a very important part of your boiler and heating system, if this is not working properly then you will have problems. The most frequent problem is definitely the lack of system pressure, a lot of people describe this as a leaking boiler.

In fact it isn't a leaking boiler, it's an expansion vessel problem. The vessel should be checked every year and reset for your boiler to provide its best performance, when the vessel it not checked, over time it will stop working.

The Boiler Service

When you call in your local gas safe registered boiler service engineer to service your boiler, ask him to make certain the expansion vessel is checked over and reset if needed. For reasons uknown when a boiler service is completed, the expansion vessel seems to be left out rather than checked, not all of the time but around 80% of that time period. When you read the boiler makers instructions on boiler service they say that the expansion ought to be checked and reset if needed.

So what happens to the expansion vessel?

The best way to describe the expansion vessel is, its just like a car tyre, over time it is going to go flat. The vessel may be the same, it is pumped up with an automobile pump to a Pressure that is compatible to the type of heat you have.

If the vessel loses its pressure then it'll start to fill with water internally, once this starts to happen most people begin to think they may have a leaking boiler.

The expansion vessel works by taking up the expansion of the water since it heats up within you're heat. If the vessel has no internal pressure then it will fill up with water, once full, your boiler will then start to discharge water through the pressure relief valve, to release the pressure to avoid pipes bursting.