"John Stumbles" wrote in message
...
On Mon, 24 Dec 2007 08:27:32 -0800, Onetap wrote:

The Baxi & the Potterton are made by the same company.
...
In fact, the circular stainless steel heat exchanger in all the above
boiler looks very similar. I think it may be made by Giannoni, or made
under licence from them.

There was a post-mortem of one of these on Gas News earlier this year,
which criticised some aspects of its design such as the
potential for a vertically mounted coil of tube to accumulate sediment at
the bottom of the turns, and the impossibility of flushing out a blockage
in one passageway plumbed in parallel with others:

http://www.gas-news.co.uk/archive/st...mment/1006.htm



The Giannoni heat exchangers:
http://www.giannoni.fr/Prod-ABSOLUT-CONDENS.html