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CENTRAL HEATING AND GAS ENGINEERS SOUTH EAST LONDON

Abacus Gas Central Heating and Gas Engineers - Established 1991
Abacus Gas, Central Heating and Gas Engineers covering South East London
 0800 393 026

Abacus Gas for all your Central Heating and Hot Water Installation, Repairs and Servicing
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CONDENSING BOILERS

Most types of boiler are also available as high efficiency or "condensing" boilers. There are high efficiency combination boilers, system boilers, or conventional boilers.  The term `condensing' or high efficiency applies to the technology which is used to maximise boiler efficiency to use less fuel for more heat.

A condensing boiler is a high efficiency modern boiler that incorporates either a larger heat exchanger or even a second heat exchanger. It produces lower flue gas temperatures, lower flue gas emissions, and reduced fuel consumption .  It typically converts more than 88% of the fuel  used into useful heat, compared to, typically, 78% for modern conventional types.  

Inside a Vaillant Condensing Boiler
Inside a Vaillant Condensing Boiler

By recovering and using heat that would otherwise be lost up the flue the best high efficiency boilers can operate with seasonal efficiencies in excess of 90%.  Recovering the heat from the flue reduces the temperature of the flue gases to a point where water vapour produced during combustion is 'condensed out'. Thus the name high efficiency condensing boiler.  A side effect is that this 'condensed out' water, known as condensate, which is acidic, has to be piped away to a drain or soakaway.  All condensing boilers will produce ‘pluming’ from the flue terminal which appears as steam. This pluming can drift into neighbouring  property causing annoyance and possible condensation on window glass or frames so careful consideration should be given to siting of the flue terminal especially if it may effect neighbouring property.

Although high efficiency boilers require a higher initial investment, they are very economical, and repay the extra initial cost in fuel savings.

A condensing boiler can work at over 90% efficiency. For further information on boiler efficiency click here  Click here for more information

New regulations came into effect in April 2005, whereby new boilers will have to be high-efficiency A and B-rated condensing boilers.  For more information click here  Click here for more information

Energy Saving Trust Link You can find a lot of information about condensing boilers on The Energy Saving Trust website via this link.

All installations are carried out in accordance with relevant regulations and good practice. 

Abacus Gas are accredited Vaillant boiler installers and are able to offer a 
5 year warranty (instead of the usual 2 years) on all Vaillant boiler installations.

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Pauline W - Oct 09
Used this company for both work and home........

Simon S. - Sep 09
Your dream tradesman- ........... 

Douglas D - .Jul 09
What a fantastic company........... 

Michael M. -  Nov 08
I was extremely impressed by Abacus Gas........


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