REPAIRING COMBINATION BOILERS
020 8883 2223 07958 500 900
Combi boilers, as they're
commonly known, provide central heating and instantaneous hot water at the turn
of a tap. The combi heats only the water you use, so its economical, yet won't
run out of hot water - no waiting for a cylinder to heat up and there are no
tanks or pipes that can freeze up in the loft.
The combi is ideal for today's modern lifestyles, and space saving too.
These boilers provide both instant hot water and central heating, but not at the
same time. They are “hot water priority” which means when hot water is being run
there is no heat output to the radiators. These boilers are ideal in smaller
homes where space is at a premium or where the demand for hot water is not too
These are not recommended for houses
with more that one bathroom due to the flow rate which can only feed one tap at
In larger homes, or if
there is a need for stored hot water you can install these with a "S-Plan"
system, then just use the instant water at one or two taps and a cylinder to
feed one or two bathrooms.
boilers supply hot water quicker that others. This is mainly because some store
a small amount of hot water, so when the hot tap is run the stored water is used
first. Others have to start up from cold which could mean running a lot of cold
water before the hot water gets to the tap. it is recommended to get a 28KW
as a lower output affects the hot water
as to the location of a combination boiler is essential. It should be fitted as
close to the taps as possible. (halfway between the kitchen & bathroom would be
ideal) If a combination boiler is fitted a long way from the taps, a lot of
water will be wasted waiting for the hot water to reach them.
These boilers are very
popular at present mainly because they are very easy to install and all the
necessary components are built in, plus there is no need for any tanks.
(Designed to work on a sealed system) However, the water temperature is normally
limited to just under 60deg °C, and that is at a low water flow rate. At higher
water flow rates the temperature will be lower depending on the temperature of
the water coming in from the mains, Normally these will raise the water
temperature about 35C at 12 litres per minute. This type of boiler is very cheap to run,
but can also be troublesome and expensive to repair if faults occur. You may
also find that a lot of installers can't repair this type of boiler, so if you
are going to have a combination boiler fitted, ask when you are getting quotes
about the maintenance. If the installer can't or won't repair it then try
someone else who can maintain the appliance
Some manufacturers are
now making combination boilers that are designed to be replaced after 5 years,
the idea is to sell them cheap so that if they break down it will not be worth