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Immersion heater on Tempest Water Cylinder

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Immersion heater on Tempest Water Cylinder

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sb8905sb8905 Forumite
1 posts
MoneySaving Newbie
Hi - first post but hoping someone can help!

Recently moved into new house and out electricity bill has rocketed. Same size house, same use. However I was looking at our water tank (Tempest Water Cylinder) and I think the immersion has been on 24/7!! Before I switch off what I think is the immersion I wanted to see if anyone could confirm.

On the side of the tank is a round external item running to a electric switch. I've googled it and really sure its immersion. It doesnt need to be on if the oil boiler is sorting it all - does it!? Its been years since had this kind of system.


  • edited 29 February at 1:14PM
    HasbeenHasbeen Forumite
    2.9K posts
    Tenth Anniversary 1,000 Posts Photogenic Name Dropper
    edited 29 February at 1:14PM
    From your last photo it appears emersion has been left off.  From your first photo it appears previous user had emersion when switched on at a low setting. Should be between 60 and 65C
    The world is not ruined by the wickedness of the wicked, but by the weakness of the good. Napoleon
  • Robin9Robin9 Forumite
    7K posts
    Part of the Furniture 1,000 Posts Name Dropper
    Can you define "rocketed" please ? What is your consumption in ACTUAL kWh ?
    Never pay on an estimated bill
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