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Immersion tank--maddening

  • 01-09-2008 8:54pm
    #1
    mollmo
    Closed Accounts Posts: 19 ✭


    Hello,

    I've had a problem with my immersion tank the past three days. The tank becomes very hot to the touch, as normal, but then the water is only lukewarm/very warm from the tap--never scalding hot as it would be normally. I can typically get two hot showers out of a full tank...this morning the water was freezing mid-way through my one.

    Any ideas? I'm fine to resign myself to phoning in help, but would like an idea of potential problems before hand. Any help would be greatly appreciated!


Comments

  • #2
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    how do you heat the water? central heating or electric immersion?

    It could be one of the immersion elements has failed - not a big job to replace.


  • #3
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,288 ✭✭✭10-10-20


    Also, is the tank hot most of the way down or just part of the way?
    Does it get cold after a shower?


  • #4
    mollmo
    Closed Accounts Posts: 19 ✭mollmo


    SteveC wrote: »
    how do you heat the water? central heating or electric immersion?

    It could be one of the immersion elements has failed - not a big job to replace.

    I'm 99% sure it's electric immersion. I live in a multi-tenant building where individual units cover their costs of electricity, but not gas. Heating is gas, but there appears to be electrical cabling to the immersion. Can you tell this isn't my forte?? :)

    10-10-20 wrote: »
    Also, is the tank hot most of the way down or just part of the way?
    Does it get cold after a shower?

    Tank gets hot most of the way down. Earlier in the week when I was leaving the immersion on for just an hour or so (as normal) the shower and tank would both be cold mid-way through one normal shower (say ten minutes).

    Since Monday I've been sleeping with the immersion on and the tank has been plenty hot in the morning and I'm again able to get two showers from one tank. Surely I will regret this once the ESB bill arrives though, no?


  • #5
    watty
    Registered Users, Registered Users 2 Posts: 32,417 ✭✭✭✭watty


    Might be a faulty thermostat.

    If tank is well lagged and thermostat working, leaving it on should not be too bad. Most have a "sink" and "bath" connection. One heats just the top of tank and the other most of the tank. Sometimes the switch goes faulty. Does the immersion have two switches on its panel?


  • #6
    mollmo
    Closed Accounts Posts: 19 ✭mollmo


    watty wrote: »
    Might be a faulty thermostat.

    If tank is well lagged and thermostat working, leaving it on should not be too bad. Most have a "sink" and "bath" connection. One heats just the top of tank and the other most of the tank. Sometimes the switch goes faulty. Does the immersion have two switches on its panel?

    Hi Watty,

    Thanks for the suggestion. Unfortunately my immersion only has an "on/off" function, not a "sink/bath" which would be helpful in the evenings. I also don't have a lagging jacket :( Have placed a call to the landlady who will send someone out this week and will request a lagging jacket.

    Thanks for all the help!


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  • #7
    dingding
    Registered Users, Registered Users 2 Posts: 4,942 ✭✭✭dingding


    How is the water heated. Is there an element screwed into the top of the tank, or is there a small cyliner at the side of the tank (willis heater) You should be able to find this by looking to see where the white wire goes.


  • #8
    mollmo
    Closed Accounts Posts: 19 ✭mollmo


    dingding wrote: »
    How is the water heated. Is there an element screwed into the top of the tank, or is there a small cyliner at the side of the tank (willis heater) You should be able to find this by looking to see where the white wire goes.

    There's a cylinder on the side. The electrician was by yesterday and apparently replaced the cylinder, but I had the same problem again this morning. Immersion was on for approx 4 hours and the shower was ice cold mid-way through. Although I noticed after the cold shower that a nozzle leading to the tank was partially closed, so I turned it all the way to the left as it typically is. Could this have explained this morning? :confused:


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