In article .com,
"Neil" writes:
Thanks Andrew.
When you say it was quite easy to clean, do you mean for a Corgi
registered person?

No, I mean for me. I have installed heating systems, but I'm
not CORGI, and I didn't install this one. The difficult part
will be getting it out of the boiler. If you aren't familiar
with such plumbing, then you might not want to tackle something
like that as a first job. Cleaning it once it's out is easy.

I had a quote of £520 to have it replaced (£200 for the parts, the
rest labour). The engineer mentioned that another alternative would be
to connect a special pump to the cold and hot inlets that pumps Furnox
through the whole system.
Can anyone recommend any of these pumps or whether they work?

Sounds like a power flush, except in your case, the blockage is
probably on the hot water side rather than the closed loop side,
so it won't work. If you are DIY'ing it and your time is therefore
not accounted for, then it's better to spend the effort cleaning
the plate exchanger. For a CORGI, maybe they don't bother and just
fit a new one, since if they spend the time cleaning it and then
find it's knackered, there's both paying for the time to clean it
and cost of a new one.

Can I get the same effect from any of the other limscale removers I
have seen on the Internet that use magents/radio/etc?

Certainly not once it's blocked, even if you do believe in the
magical abilities of a couple of flashing LED's to soften the
water.

--
Andrew Gabriel