Stainless steel or aluminum heat exchanger

[maisie the ugly]

Hi all
Will have to get a new boiler fitted in the summer, currently have a halstead best 60 boiler installed along with a multi fuel stove connected to a dunsley neutralizer, halstead best 60 boiler is kettling quite bad, was descaled last year but started kettling again.

what make of boiler do people recormmend, which material is best for the heat exchanger, stainless steel or aluminum .

Many thanks for your advise

 

[kozak1968]

Stainless steel seems more resistant to corrosion than certain grades of aluminium.