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    New boilers have to adhere to strict energy efficiency guidelines

    New boilers have to adhere to strict energy efficiency guidelines energy efficiency is measured by dividing the input energy (fuel consumed) by the output energy (heat produced) converted into percentage this is then graded into a scale of 7 grades ranging from a to g with a being the most efficient and g being the least.

    Added: 2020-05-07 | Category: one | Comments: 0