Boiler, heating, installation

Boilers. Central heating boilers. Balanced flue boilers. Open flue boilers. Fan assisted boilers. Combi (combination) boilers. Condensing boilers.

There is a great deal of confusion surrounding boilers and we have tried to cover the basics here. Essentially if you have any doubts you should discuss your installation in detail with your supplier, or your installer who must be CORGI registered. In the case of oil boilers this should be done by an OFTEC registered engineer.

The size of your boiler is dictated by the output you require. This is measured in terms of radiators and hot water cylinders. It has been common in the past to oversize boilers to make sure the boiler would heat your house adequately. One result of this is that most boilers installed pre 1989 are as much as 30% oversized. This is an incredible drain on finance as well as energy and these days boiler efficiency calculations are much more advanced. You can get some help by clicking through to our radiators project.

There are several types of gas boiler from which you can choose, so it's important that you understand how they differ if you're to make the right choice for your individual needs

It is also advisable that you find out what type of fuel is available in your local area if you do not already have heating installed or you are thinking of changing.

The values corresponding to their thermal conductivity are:

  • Steel 15 kcal/m2.h per degree C
  • CaSO4 1-2 kcal/m2.h per degree C
  • CaCO3 0.5-1 kcal/m2.h per degree C
  • SiO2 0.2-0.5 kcal/m2.h per degree C

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