I am interested to find out more about how the SEDBUK rating is achieved/awarded.
Things like :
1/. How long is the test period and what does it involve:
I gather the 46kw Vaillant Ecotec + HE boiler always has a full burn for the first hour of firing, so how does it achieve a 90.5% efficiency and an A rating when its installation will normally not need a full burn for such a long period. Surely efficiency is about more than its ability to extract heat, does it include things like modulating down for best use of resource
2/. Boiler controls used for test:
It seems that using boiler manufacturers own brand controllers can significantly affect the efficiency of a boiler,
how can I find out which controller a boiler was tested with enabling my ability to be able to install the most efficient solution. Shouldn't that be part of the published results?
Things like :
1/. How long is the test period and what does it involve:
I gather the 46kw Vaillant Ecotec + HE boiler always has a full burn for the first hour of firing, so how does it achieve a 90.5% efficiency and an A rating when its installation will normally not need a full burn for such a long period. Surely efficiency is about more than its ability to extract heat, does it include things like modulating down for best use of resource
2/. Boiler controls used for test:
It seems that using boiler manufacturers own brand controllers can significantly affect the efficiency of a boiler,
how can I find out which controller a boiler was tested with enabling my ability to be able to install the most efficient solution. Shouldn't that be part of the published results?