"geoff" wrote in message
news
In message , Doctor Drivel
writes

"Dave Liquorice" wrote in message
hill.co.uk...
On Mon, 31 May 2010 12:17:16 -0700 (PDT), swiggers wrote:

My mum has had a recommendation from a British Gas engineer to fit a
Magna Booster to her central heating - which apparently removes lime
scale from your central heating system and 'stops it from blocking
up'.

Utter bull****. With a conventional boiler and indeed with a
condensing one the central heating water just circulates. The system
should have inhibitor(*) in this water to prevent corrosion. Even in
a very hard water area the amount of lime bought in for filling the
system is not remotely anywhere near being problem.

The only problem is if fresh water has to be introduced regulary to
counter leaks but even then the problem will be mainly from the
oxgyen in the fresh water leading to increased corrosion not any
lime.


You really do not know what you are talking about and should not give
advice on these matters. When the inhibitor wears off the magna booster
catches the magnetite and other solids that would have blocked the heat
exchanger. The solids bake onto the inside on the small tubed heat
exchanger. Most use the spiralled tubed Giovanni.

Which brochure did you lift that straight out of ?

Maxie, it was a brochure that had turned down wellies and donkey jackets in
it.