Stainless steel is not the best heat exchanger material, and in no means superior to aluminium correctly applied. Time (25 years) has proved the efficacy of aluminium silica construction condensing technology in Holland where 80% of boilers were condensers before John Prescott bought his second Jag.
British manufacturers' knee jerk reaction to problems of condensing techknowlogy is no recomendation against 25 years of experience in the field.
Gianoni made a generic stainless heat ex and provided a temporary solution to the wrong footed manufcaturers with little useful experience in the field. Stainless steel is a marvelous marketing tool in a country where fitteres are prejudiced against condensing techknowlogy because of the aborted efforts where the heat exchangers and burners rotted away, so to get fitters on board use a material they know won't rot. They'll promote it to people who ask questions on forums and we'll create a myth that sells our cobbled together product.
OTOH stainless stell doesn't make it as bad product either, it just isn't automatically better than tried and tested methods, except as a marketing tool or a sourcing tool since it's available off the shelf.
The reliability of all these new generation of boilers has yet to be proved, in 25 years we'll find out if they are as good as the Dutch ones are proved to be already.
British manufacturers' knee jerk reaction to problems of condensing techknowlogy is no recomendation against 25 years of experience in the field.
Gianoni made a generic stainless heat ex and provided a temporary solution to the wrong footed manufcaturers with little useful experience in the field. Stainless steel is a marvelous marketing tool in a country where fitteres are prejudiced against condensing techknowlogy because of the aborted efforts where the heat exchangers and burners rotted away, so to get fitters on board use a material they know won't rot. They'll promote it to people who ask questions on forums and we'll create a myth that sells our cobbled together product.
OTOH stainless stell doesn't make it as bad product either, it just isn't automatically better than tried and tested methods, except as a marketing tool or a sourcing tool since it's available off the shelf.
The reliability of all these new generation of boilers has yet to be proved, in 25 years we'll find out if they are as good as the Dutch ones are proved to be already.