In an earlier contribution to this discussion,
David WE Roberts wrote:

This Caradon Ideal confuses me as well - the boiler is marked as
Stelrad Ideal and Ideal Stelrad are still making boilers.
No list seems to contain 'Stelrad' though.
Googling Caradon Ideal leads you back to the Ideal website, but the
website doesn't seem to talk about Caradon (although the words "Now
in 2007," on the About Us page suggest that it hasn't been updated
recently).

AIUI, Ideal and Stelrad are just brand names used for various products made
by Caradon PLC - so the names may crop up in various combinations. Everest
Double Glazing is (or, at least, used to be) part of the same outfit.
--
Cheers,
Roger
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