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Approximate cost of boiling a kettle??

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Comments

  • #62
    mood
    Registered Users, Registered Users 2 Posts: 4,264 ✭✭✭mood


    nudger wrote: »
    Some cups, bowls become very hot and are not micro proof.

    Possibly. But the fact the the milk go cool so quickly put me off using the microwave to heat milk. At least using the saucepan and cooker it is hot longer so you can enjoy your drink rather than drink it asap.


  • #63
    nudger
    Closed Accounts Posts: 1,449 ✭✭✭nudger


    robbie7730 wrote: »
    Your gut feeling is correct. My 800 watt one takes 1350 watts from the electrical supply. 60% efficient. The kettle would be in the 90`s id say.

    Thanks for the lesson robbie, had a look and it is 1300w to get 800w.


  • #64
    tara73
    Registered Users, Registered Users 2 Posts: 2,374 ✭✭✭tara73


    sooo funny this comments and experiments...:):)


  • #65
    Victor
    Registered Users, Registered Users 2 Posts: 78,749 ✭✭✭✭Victor


    Qualitymark wrote: »
    By the way, this

    http://www.amazon.co.uk/Philips-HD4644-Energy-Efficient-Kettle/dp/B001EHF3OG/ref=sr_1_3?ie=UTF8&qid=1351153550&sr=8-3

    claims 66% less energy use.

    I call bull. It might be more efficient than gas kettle, but it won't be magically better than another electric kettle.
    langdang wrote: »
    If anyone hasn't realised this yet - a 1kW kettle and a 3kW will take practically the same power to boil the same amount of water. The only difference is time.
    You are mixing your terms 1kW and 3kW are the power ratings. What you mean is that a 3kW will use less energy. Power is energy divided by time.
    If I was to guess, I'd suggest that the 3kW rapid boil kettle might be slightly more efficient - less time for heat to be lost to the outside world??? Maybe??
    I agree. It will do it more quickly, so there should be less heat loss.

    mood wrote: »
    Maybe you should start making the tea yourself :rolleyes:

    I've noticed that if I heat a cup of milk in the microwave the cup is extremely hot, a lot hotter than the milk. The milk cools a lot quicker than if I heat the milk in a saucepan on the cooker. I use a saucepan on the cooker anymore.
    Of course warmer milk will stay warmer longer.


  • #66
    Bruthal
    Closed Accounts Posts: 13,370 ✭✭✭✭Bruthal


    Victor wrote: »
    Qualitymark wrote: »

    By the way, this

    http://www.amazon.co.uk/Philips-HD4644-Energy-Efficient-Kettle/dp/B001EHF3OG/ref=sr_1_3?ie=UTF8&qid=1351153550&sr=8-3

    claims 66% less energy use.
    I call bull. It might be more efficient than gas kettle, but it won't be magically better than another electric kettle.
    I would imagine they are talking about savings in terms of the kettle being able to boil single cup volumes of water, nothing more than that.
    Victor wrote: »
    langdang wrote: »
    If anyone hasn't realised this yet - a 1kW kettle and a 3kW will take practically the same power to boil the same amount of water. The only difference is time.
    You are mixing your terms 1kW and 3kW are the power ratings. What you mean is that a 3kW will use less energy. Power is energy divided by time.
    He said the 1kw and 3kw kettle will take the same power to boil the same amount of water, although he should say energy alright. Energy is power x time or power is energy divided by time as you said. So a 3kw kettle will boil a litre of 15 degree water 3 times faster than a 1kw one. Therefore they both use the same energy in doing so.


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