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Boris Johnson and money saving kettles.

Sparkingchip

The comment https://youtu.be/GNTNI0yhMjE

For the defence https://fullfact.org/news/Boris-Johnson-new-kettle/

My question, is it just a ridiculous analogy because there’s no such thing as an energy efficient kettle? 

Only behaviour change with people heating exactly the amount of water required rather than overfilling kettles will reduce energy consumption, people are just going to have to be told to be more frugal and be careful when  using appliance to ensure they are being energy efficient.

Parents
  • 0

    I have never fully understood why, but some kettles are faster than others of the same wattage. I suspect that some are more efficient than others when it comes to changing electrical energy into heat.

  • 0 in reply to Chris Pearson

    If some of the electrical energy isn't being turned into heat, then it must be turned into something else.  That seems unlikely in a kettle.

    More likely, it's about thermal conductance between the element and the water.

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  • 0 in reply to Chris Pearson

    If some of the electrical energy isn't being turned into heat, then it must be turned into something else.  That seems unlikely in a kettle.

    More likely, it's about thermal conductance between the element and the water.

Children
  • 0 in reply to Simon Barker

    or at least the fact that some of the heat is lost to the environs - a shiny metal kettle will lose less than a dull one. Worst would be matt black like a heatsink, luckily not that common....  Also note that there is a fair old variation between 'identical wattage' elements. The factory do not like rejects, so almost anything goes out the door.

    Mike.

  • 0 in reply to Simon Barker

    I take the point, but are you saying that all heating elements are as efficient as each other?

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