In an earlier contribution to this discussion,
Steve Gouldstone wrote:

On Mon, 07 Nov 2005 09:45:54 +0000, Steve Gouldstone
wrote:
My hot water tank has wiring for an immersion heater, but one isn't
fitted. The tank, I would guess is about 20 years old.

Is the fitting standard - ie can I just buy an immersion heater and
be sure it will fit?

Yes I think the little thermostat 'is' something to do with the
central heating, nothing to do with the immersion heater, I will leave
well alone.

There is a separate power supply in the airing cupboard with it's own
fusebox switch (next to the electricity consumer unit) marked 'shower'
(though no shower was ever fitted). This is a pretty hefty cable.

I think I could use this for an immersion heater. I will get someonje
in to look at it I think.

Thanks for all help.

How is your water currently heated, and why do you want an immersion heater?

Mine is heated by my gas central heating boiler - even in summer when the
heating is off - and the immersion heater is used only in emergencies. If I
didn't happen to have one, I don't think I'd suddenly be fitting one.

If the blanking plug has been in the cylinder for 20 years, it's going to be
a s*d to remove - and you may well end up scrapping the cylinder in the
process. [It's probably time for a new - fast recovery - model anyway!]
--
Cheers,
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