Before getting onto the
point of difference between the combi boilers and the condensing boilers, let
us get a clear vision to their terms.
What are Combi Boilers?
Combination boiler or
combi boilers come being one of the most common types of boilers used in UK for
a reason. Unlike the system and conventional units, the combination boilers are
designed to be an all in one unit which produces hot water for taps and central
heating in order to cut down the use of storage tanks or cylinders, thus
occupying the least space required to house the boiler. Additionally on a
comparison, the installations are much easier and faster than any other boiler
The combi boilers
operates by using the water from the main supply that results in stronger water
pressure and ensures that you would never be lacking on hot water again. The modern
highly efficient units come, being a stainless steel condensing boiler with an
inbuilt heat exchanger that operates in order to serve the customers with hot
There are two main
reasons behind the combi boilers great and powerful efficiency i.e. these units
have high operating efficiency and low internal water volume. This means when
in summer days you don’t need space heating you are only paying to heat water
which is domestically required.
What are Condensing Boilers?
The gases that are
produced from the operation of a normal boiler carry heat that gets lost as
soon as these gases are emitted out into the atmosphere. This means that your
home isn’t benefiting from some of the heat being generated by your boiler. To
combat these, the condensing boilers are designed with two inbuilt heat
exchangers in order to ensure more efficient performance of your system with
less heat being lost. The condensing boiler thus doesn’t needs to work hard
which eventually results into the use of less energy. On a comparison with the
non-condensing units, the condensing boilers are made to use less fuel and
power while producing fewer CO2 emissions.
How can a Combi boiler also be condensing?
A boiler at general,
whether it be a combi, system or regular unit, operates not only to produce heat
but also to produce waste flue gases which are dispersed out into the
atmosphere via a flue. In order to combat this when a flue gas heat recovery
system is installed inside a boiler, it becomes a condensing unit.
Therefore, a boiler
system that operates by using water directly from the mains and comes being
compact is a combi boiler which eventually turns into a condensing unit as soon
as a flue gas heat recovery system is installed in it, thus making it a
condensing combi boiler.
A condensing combi boiler
can serve you with a no. of benefits-
- Lower energy
- Reduced carbon
- Hot water on
- More space
around the home
- Easy to install
A condensing combi
boiler comes with the ability to achieve an efficiency mark 90% which makes
them highly efficient.
best condensing boilers
iC Economiser Plus 35
ecoTEC exclusive with Green iQ combi
Bosch Greenstar CDi Classic
DUO-TEC 40 GA
a condensing boiler operates more efficiently in homes with low system
temperature and is easy to install and use. Condensing boiler has always been
the ideal choice for the users as it allows them to reuse the heat and
minimizes the energy bills as well.