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  • FIRST POST
    • Helen28
    • By Helen28 13th Jan 18, 3:38 PM
    • 27Posts
    • 2Thanks
    Helen28
    Check my calculation?
    • #1
    • 13th Jan 18, 3:38 PM
    Check my calculation? 13th Jan 18 at 3:38 PM
    I have just discovered that a 60 watt pipe heater with no thermostat has been left switched on in my attic for over a year.

    It was under the cold water tank.

    I'm with Bulb paying 0.1351p per kWh so has it been costing me £59.19 a year as I have calculated or just £5.91 as my ex says?
Page 1
    • Robin9
    • By Robin9 13th Jan 18, 3:44 PM
    • 2,643 Posts
    • 1,720 Thanks
    Robin9
    • #2
    • 13th Jan 18, 3:44 PM
    • #2
    • 13th Jan 18, 3:44 PM
    £74.56 24 hours a day 365 days plus VAT
    Never pay on an estimated bill
    • molerat
    • By molerat 13th Jan 18, 3:45 PM
    • 18,789 Posts
    • 12,943 Thanks
    molerat
    • #3
    • 13th Jan 18, 3:45 PM
    • #3
    • 13th Jan 18, 3:45 PM
    0.06 x 24 x 365 x 0.1351 = £71.01
    www.helpforheroes.org.uk/donations.html
    • gsmlnx
    • By gsmlnx 13th Jan 18, 3:48 PM
    • 892 Posts
    • 692 Thanks
    gsmlnx
    • #4
    • 13th Jan 18, 3:48 PM
    • #4
    • 13th Jan 18, 3:48 PM
    60 Watts per hour = 1.44kWh per day

    13.51p per kWh ( I believe you meant £0.1351 per kWh above)

    1 day = 19.45p per day

    365 days a year = £71.00
    • EachPenny
    • By EachPenny 13th Jan 18, 4:05 PM
    • 5,194 Posts
    • 13,847 Thanks
    EachPenny
    • #5
    • 13th Jan 18, 4:05 PM
    • #5
    • 13th Jan 18, 4:05 PM
    Look on the positive side.... how much more would an emergency plumber visit have cost if you'd forgotten to turn the heater back on before the start of Winter
    "In the future, everyone will be rich for 15 minutes"
    • Helen28
    • By Helen28 13th Jan 18, 4:15 PM
    • 27 Posts
    • 2 Thanks
    Helen28
    • #6
    • 13th Jan 18, 4:15 PM
    • #6
    • 13th Jan 18, 4:15 PM
    Look on the positive side.... how much more would an emergency plumber visit have cost if you'd forgotten to turn the heater back on before the start of Winter
    Nothing, the tank was drained but left in the attic when when new heating was installed.

    One of the reasons he is my ex.
    • Helen28
    • By Helen28 13th Jan 18, 4:18 PM
    • 27 Posts
    • 2 Thanks
    Helen28
    • #7
    • 13th Jan 18, 4:18 PM
    • #7
    • 13th Jan 18, 4:18 PM
    the calculation was wrong, it was done on a 50 watt heater (slip of the finger in excel) but still it is 10 times more than my ex says.
    • gsmlnx
    • By gsmlnx 13th Jan 18, 5:27 PM
    • 892 Posts
    • 692 Thanks
    gsmlnx
    • #8
    • 13th Jan 18, 5:27 PM
    • #8
    • 13th Jan 18, 5:27 PM
    @helen28

    WIth a 50W heater, your figure was correct.
    • Helen28
    • By Helen28 13th Jan 18, 10:55 PM
    • 27 Posts
    • 2 Thanks
    Helen28
    • #9
    • 13th Jan 18, 10:55 PM
    • #9
    • 13th Jan 18, 10:55 PM
    WIth a 50W heater, your figure was correct.
    Yes I know, it was the fact that my ex was insistent that he was right and I was wrong that made me ask.
    • AndyPK
    • By AndyPK 14th Jan 18, 12:11 PM
    • 2,899 Posts
    • 812 Thanks
    AndyPK
    its not uncommon for tanks to be left up there.

    Not easy to remove.

    Mind you most people have frost stats so the heaters only come on when cold.
    • jack_pott
    • By jack_pott 14th Jan 18, 12:34 PM
    • 4,584 Posts
    • 5,907 Thanks
    jack_pott
    60 Watts per hour = 1.44kWh per day
    Originally posted by gsmlnx
    60 Watts = 1.44kWh per day
    I'm not upset that you lied to me, I'm upset that from now on I can't believe you.
    Friedrich Nietzsche
    • AnotherJoe
    • By AnotherJoe 14th Jan 18, 1:05 PM
    • 9,605 Posts
    • 10,683 Thanks
    AnotherJoe
    Presumably though it won!!!8217;t have been on continuously, just enough to maintain the temperature. Maybe half the time ?
    • Farway
    • By Farway 14th Jan 18, 2:23 PM
    • 6,228 Posts
    • 9,942 Thanks
    Farway
    Presumably though it won’t have been on continuously, just enough to maintain the temperature. Maybe half the time ?
    Originally posted by AnotherJoe
    OP states no thermostat, so on 24/7 x 365
    • AnotherJoe
    • By AnotherJoe 14th Jan 18, 4:55 PM
    • 9,605 Posts
    • 10,683 Thanks
    AnotherJoe
    OP states no thermostat, so on 24/7 x 365
    Originally posted by Farway
    OUCH. Missed that.
    • zeupater
    • By zeupater 16th Jan 18, 9:03 PM
    • 4,174 Posts
    • 5,391 Thanks
    zeupater
    I have just discovered that a 60 watt pipe heater with no thermostat has been left switched on in my attic for over a year.

    It was under the cold water tank.

    I'm with Bulb paying 0.1351p per kWh so has it been costing me £59.19 a year as I have calculated or just £5.91 as my ex says?
    Originally posted by Helen28
    Hi

    Simple rule of thumb on energy saving & energy efficiency is that 1W used constantly for 1 year cost around £1 !!

    Makes it quite simple really ... that 5W slightly warm DC transformer that's plugged into the wall is costing ~£5/year and the 3W one ~£3/year ...

    HTH
    Z
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
    • Helen28
    • By Helen28 17th Jan 18, 12:19 AM
    • 27 Posts
    • 2 Thanks
    Helen28
    Simple rule of thumb on energy saving & energy efficiency is that 1W used constantly for 1 year cost around £1 !!
    I know that, that is what I told my ex and he said I was wrong.

    I just needed someone else to point out to my disbelieving ex that he was wrong and I was right.
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