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How hare-brained is this idea?

  • 21-08-2023 3:37pm
    #1
    MegamanBoo
    Registered Users, Registered Users 2 Posts: 3,251 ✭✭✭


    I see some electricity supply companies are offering tariffs with free weekend usage...

    I'm wondering if it would be possible heat buffer tanks over the weekend to heat my 160sqm house for the rest of the week.

    The house it pretty well insulated and we don't like to too warm.

    Might use an average of 1000 liters of oil per year.



Comments

  • #2
    Lenar3556
    Registered Users, Registered Users 2 Posts: 1,709 ✭✭✭Lenar3556


    I think there are limits - Bord Gais have a ‘fair usage policy’. I’d hazard a guess the supply maxed out every Saturday heating buffer tanks would be considered ‘unfair’.



  • #3
    Sleeper12
    Registered Users, Registered Users 2 Posts: 17,189 ✭✭✭✭Sleeper12


    Why not buy battery. Charge it for free on the free day. Charge it at night on the cheap rate

    Word of warning though. I'm pretty sure that you need to have a smart meter & be on the smart meter rate to get free weekend rate. Smart tariff has 3 time bands. Peak rate from around 4pm to 8pm is very expensive



  • #4
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    You would need a buffer tank(s) bigger than your house. If you assume your require ~ a minimum of 50kwh/day to heat your house in the winter and you will require circ water at a minimum temperature of ~ 45C, so assuming you heat the buffer to 85C then it requires a 1075L buffer tank to heat the house for just one day or 6,450L for 6 days or 13 X 500L buffer tanks!!.



  • #5
    MegamanBoo
    Registered Users, Registered Users 2 Posts: 3,251 ✭✭✭MegamanBoo


    https://www.boards.ie/discussion/comment/121012667#Comment_121012667

    Thanks John, I expected it was pretty daft alright but thanks for confirming and with detail!



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