O
oompah
I am in the process of getting a new boiler most boilers quoted now have a sedbuck rating of 5 which is 90% efficient if i understand right.Question is how long does a boiler remain this efficient.
Sedbuk ratings are from A to G - and newly installed boilers today (in most situations) need to be SEDBUK rated A or B.
O
oompah
I understand that but how long do they remain at 90% efficient,life time of the boiler? or do they start losing efficiency year on year ?
They lose 0.05622% efficiency per annum and 0.5758% on a leap year. Loss rate is greater when there's an 'r' in the month.
O
oompah
Thank you a sensible answer.
N
namsag
Good job you added in most situations londonboy as there are C rated boilers that meet the regs the same as an A or B do
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