A Question of Efficiency

Robert Yorke, an Individual Member, wrote to Dorothy Craig following the Tyneside Group inquiry about very old electrical appliances still in use.

Fridge01.JPG (20074 bytes)He has a fridge which is 44 years old and still with its original door seals - although probably not as old as the one in this picture from an old catalogue!

He carried out an efficiency test by measuring the amount of energy consumed in a week by his new fridge (I am not sure how he did this) then using the old one with an identical content. He found that the old one was 70% more efficient than the new one!

Imagine, he said, the amount of extra energy we, in a country of millions of fridge owners, are using by buying modern, less efficient fridges. Ah! The wonders of new technology.

I asked some Bosch technicians about this strange situation. They explained that modern fridges work on a different principle from very old ones and are, admittedly, less efficient to run, but cheaper to make.

Brian Locke, Science and Technology Network Leader, cautions that it is difficult to make direct comparisons as there are a number of variables which it would be difficult to take into consideration outside a laboratory.

John Brown

He bought a new fridge to match his new kitchen, but it was switching itself on and off much more than the old one.

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