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Shower problem

  • 20-03-2009 9:16pm
    #1
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭


    Right folks. Built a house last year, moved in in October. Everything going fine. Have 2 power showers being fed from a 300l solar cylinder running from a solar cylinder (no panels).
    Problem started when we ran out of oil. Cold water in the tank. Immersion on for 3 hours and the water wasnt even warm let alone hot.
    Checked with the plumber to see if we could put one of the showers into an electric unit to save on the grief. Problem is that the plumber didnt leave a mains feed in the attic as he didnt think we needed it with the current setup. All our tanks are in the garage so we have no feed to get to the bathroom for the shower.

    Is there anything that can be done or are we more or less stuck with the current setup?


Comments

  • #2
    Carlow52
    Closed Accounts Posts: 2,389 ✭✭✭Carlow52


    whitelightrider wrote: »
    Right folks. Built a house last year, moved in in October. Everything going fine. Have 2 power showers being fed from a 300l solar cylinder running from a solar cylinder (no panels).
    Problem started when we ran out of oil. Cold water in the tank. Immersion on for 3 hours and the water wasnt even warm let alone hot.
    Checked with the plumber to see if we could put one of the showers into an electric unit to save on the grief. Problem is that the plumber didnt leave a mains feed in the attic as he didnt think we needed it with the current setup. All our tanks are in the garage so we have no feed to get to the bathroom for the shower.

    Is there anything that can be done or are we more or less stuck with the current setup?

    Would like more details on this set up
    Have 2 power showers being fed from a 300l solar cylinder running from a solar cylinder (no panels).

    leave the immersion on for 8 to 12 hrs and it will heat the water


  • #3
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    Carlow52 wrote: »
    Would like more details on this set up


    leave the immersion on for 8 to 12 hrs and it will heat the water

    The setup? All the tanks are housed in the garage. There is a pressurised system pumping water into the house. There is a 300l solar cylinder fed from an oil boiler which also has an immersion.

    8 to 12 hours? The Immersion is about 1/3 of the way up the tank. Leaving an immersion on for that length of time is just nuts.


  • #4
    Carlow52
    Closed Accounts Posts: 2,389 ✭✭✭Carlow52


    whitelightrider wrote: »
    The setup? All the tanks are housed in the garage. There is a pressurised system pumping water into the house. There is a 300l solar cylinder fed from an oil boiler which also has an immersion.

    8 to 12 hours? The Immersion is about 1/3 of the way up the tank. Leaving an immersion on for that length of time is just nuts.

    Have only just noticed that you started this thread
    http://www.boards.ie/vbulletin/showthread.php?t=2055510044

    which is about the same issue and u did not think my suggestion was nuts then based on the math, so what has changed?
    AFAIK:

    It takes 4.16kJ to heat one litre of water by 1 degree

    4.16kJ is 0.00116kWh

    so for 300 litres from 10C to 60 C is 17.4kWh

    If the immersion is a 2kWh then it will take 8.7 hrs to heat up.

    so 2 hrs here and there is just not going to do it.

    What I am still interested in is what this set up is
    Have 2 power showers being fed from a 300l solar cylinder running from a solar cylinder (no panels).

    ie Twin Solar cylinders with no panels.

    Perhaps I am nuts to ask for clarification.


  • #5
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    Carlow, that is a separate issue. I was asking about the length of time it takes for the immersion to heat the water in our solar cylinder after we ran out of oil. I still think 8 hours to get hot water is a seriously long period of time. Maybe the immersion is in the wrong place, maybe it needs to be a bigger immersion. I dont know. I am here asking for advice and help. Not to be nit picking with someone.

    The issue I have now is whether or not its possible to put in an electric shower into the house when the plumber has not left a mains feed to the upstairs of the house?


  • #6
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    The cylinder is a triple coil cyclinder and was installed in case we ever get solar panels. We dont have them at the minute as they were out of the original budget for the house.


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  • #7
    John mac
    Registered Users, Registered Users 2 Posts: 5,131 ✭✭✭John mac


    you will need an electrical connection direct from the fuse box also.

    you could run a pipe up to the attic to feed a new header tank from the cold feed on the bath (presume its 3/4) ,


    (don't run out of oil:D)


  • #8
    whitelightrider
    Registered Users, Registered Users 2 Posts: 3,100 ✭✭✭whitelightrider


    John mac wrote: »
    you will need an electrical connection direct from the fuse box also.

    you could run a pipe up to the attic to feed a new header tank from the cold feed on the bath (presume its 3/4) ,


    (don't run out of oil:D)

    Hi John,
    There is an electrical connection already buried in the wall as the electrician was future proofing it. Seems he thought we would need it eventually.
    Plumber did his job but didnt leave any pipes into the attic as we said we didnt need an electric shower.

    So we could pull a pipe into the attic and fill a header tank. Then pipe that into the room where the electric shower is going?


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