Winter Boiler Breakdowns
Wednesday, January 11th, 2012In the cold winter months your boiler is put under additional strain and stress as you rely on it more and more to heat your home and make your household comfortable.
However, over the cold snap you may be one of the unlucky ones who experiences problems with boiler breakdown including a total failure of the heating system.
To add to any concerns you may have about your existing boiler, it has also recently been found that the new condensing boilers that the majority of UK households have installed have major problems associated to them working correctly in the winter months. This is surprising to learn as even though these boilers are considered to have better energy efficiency and households are encouraged to install them (especially with Government legislation) they are prone to breakdown issues. This fact is backed up by the findings from British Gas who in Yorkshire alone had over 60,000 call-outs regarding broken down boilers last year.
The reason for the condensing boiler breakdown seems to be due to the same reoccurring problem being when the cold weather causes the pipe which takes waste water from the back of the condensing boiler freezes. This causes the boiler to stop working, shutting down the whole system and in some cases causing permanent damage to the boiler.
This type of issue isn’t common in older boilers as they produced hot gases which heats the water in the system and around 25 per cent of these gases are let out of the waste pipe in the form of hot steam therefore freezing doesn’t happen. But, in condensing boilers these gases condense into water which is then fed back into and around the system.
One of the ways to plan for such a breakdown is to install radiant heat technology which uses embedded pipes in the walls and floors and therefore reduces the possibility of the pipes becoming frozen. Even though this is a common solution and feature of many houses in Europe it is not common in the UK and therefore would costs thousands for a home to try and back engineer this type of technology. Therefore, in the UK the only way to try and prevent freezing is to lag and insulate as many of the visible and external pipes as possible.
Another problem associated with the boiler is that the water vapour that is produced by the boilers can be slightly acidic which can cause erosion to the boiler parts which causes it to breakdown. Unfortunately, when this happens the parts will need to be replaced.
The best solution in both cases is prevention. It is therefore important to get the boiler serviced regularly as this will keep it in the best economic care and prolong the life of the boiler and its parts. It will also alert you to any potential breakdown issues which you can fix in a timely manner to ensure that you aren’t one of the unlucky ones shivering in winter when the boiler breaks down unexpectedly.
Guest Article by Sarah Wain






My name is Alan Potts and I'm the Editor of the Gasboiler-BUYability web site and Managing Director of BUYability Limited. You can connect with me or keep up to date with new posts on this blog via the following social media sites: 








