A condensing boiler precis

A condensing boiler is a money saving advanced boiler that integrates an additional heat exchanger to enable the red-hot exhaust gases transfer much of their energy to start to heat the cold water input. Once functioning at a good efficiency, the water steam produced in the combustion process distils back into clear water relinquishing the latent heat of vaporisation.

A result is that this water, refered to as condensate, often acidic, will need to be piped away to a waste pipe or soak away. The boiler will have to be fitted to a wall and the output gases will rise through the flue. Hot water is initialy served by a small-scale recepticle tank to facilitate convenient and rapid hot water .

What size of boiler should I purchase?

You should bear in mind that in the past central heating engineers oftentimes installed boilers that had a higher yield than purely necessary.. Although this meant that there was no possibility of the boiler being unable to render sufficient hot water, without any care for icy weather, it also meant that they were mainly working at a reduced capacity, and so running in an ineffective mode. If you have fitted additional loft or cavity wall insulating material since the previous boiler was put in, it could well be that you will need a humbler boiler than before.

Before you get a new boiler we recommend you get information from a CORGI registered fitter.

Do I need to set up oversized radiators with condensing boilers??

The underlying reason for this improved efficiency from a condensing boiler comes from having a bigger heat exchanger. More Prominent radiators would allow lower return temperatures, and so enable greater energy efficiency, but the extra benefit has not been viewed as cost effective, holding in mind that the system is is only using a small part of its total capacity for the main heating months. That probably remains true, though the smaller heating demand for new build may easily mean that homeowners would now allow over-sized radiators more willingly.

The SEDBUK project looked at this, during which it was considered whether condensing boilers needed to be treated differently from others. The decision was that they need not, and the test results forthe condensing and the existing boilers share the same SEDBUK calculation.