Advanced Condensing boilers







Advanced Condensing boilers

If you are considering buying a new central heating system you will need to choode a boiler. One boiler type you may consider is A condensing boiler. A condensing boiler is a high efficiency modern boiler that incorporates an extra heat exchanger in order that the red-hot exhaust gases transfer their inherent heat to pre warm the mains water entering the boiler. Once working at high efficiency, the steam created in the combustion process distills back into a liquid letting go of the heat is was carrying.

A consequence results in this liquid, known as condensate, often acidic, required to be piped outside to a waste pipe or soakaway. The boiler is recommended to be fixed on a wall and the exhaust gases will pass through the flue. Hot water is supplied by a modest recepticle tank to ensure speedy hot water accessibility.

Often people as questions concerning the suitability of condensing boilers. The two most popular questions are: -

Do the radiators need to be oversize with a condensing boiler?

The fundamental reason for this bettered efficiency from a condensing boiler is that it has an oversize heat exchanger. Bigger radiators would result in cooler return water temperatures, and so enable greater energy efficiency, but the additional economies suffer from decreasing returns, bearing in mind that the system is operating at very low capacity for the main heating calendar months. That in all probability remains true, though the smaller heating requirement for new build may well mean that homeowners would now tolerate over-sized radiators more willingly.

The SEDBUK project looked at this, and had a look at the recommendations for condensing boilers. The result was that no new recommendations were needed, and the test results forall the boiler types use the same SEDBUK formula.

How can I get the right size of boiler?

You should keep in mind that previously central heating engineers often put in boilers that had a higher output than strictly necessary.. Although this ensured that there was little chance of the boiler not meeting the heat demand, even in the most arctic of conditions, it also meant that they were only using a piece of their heat generation capabilities, and so running in an ineffective style. If you have installed additional loft or cavity wall insulation since the current boiler was fitted in your house, it is highly likely that you will be recommended to install a smaller boiler than the current one.

We certainly recommend you get advice from a CORGI installer before purchasing your next boiler

Posted in Centralheating


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