ravenheat condensate corrosion

[transam]

This is a ravenheat secodary heat exc ' 2 years old with condensate corrosion

ravenheat csi prmary boiler

• transam
• 26 Nov 2009
• 7

ravenheat csi (condensing system inovation ) heat exchanger , flue bits , & debris , 2 yrs old !

 

[gassafeengineer]

thats why people dont fit ravenheat i assume

 

[transam]

It might also be a reason as to why you shouldnt fit a boiler with an alloy heat exc ' ?? this corrosion occured because the boiler was constantly condensing , which might suggest that many are fortunate (?) that there boilers are not constantly condensing ?

 

[transam]

It might also be a reason as to why you shouldnt fit a boiler with an alloy heat exc ' ?? this corrosion occured because the boiler was constantly condensing , which might suggest that many are fortunate (?) that there boilers are not constantly condensing ?

 

[bengasman]

It is not a matter of ally or steel, but how well the boiler is designed. Ravenheap and quality do not belong in the same sentence.

 

[Paul Barker]

The big design flaw is the flu parts, as in Ideal Icos and Isar of a few years back.

Nowadays some flues are all non metal. The way forward. Most are non metal inner flu which carries the corrosive vapor.

This picture shows a hidden collection of aluminium oxide in a Buderus which wouldn't normally come to light

Untitled

• Paul Barker
• 15 Nov 2009
• 3

During a service you wouldn't remove the part pictured, so it would go un-noticed.

 

[transam]

Interesting pics Paul , the problem as i see it is the boiler constantly condensing , the alloy heat exc' cannot cope its dissolving away the pile of debris in the pic , is the dissolved alloy , I wrote to a well known trade publication asking if any alloy boiler manu ' would care to put there boilers to the test ,( the letter was published ) the only manu ' who responded was stewart purchase M.D Veissman ( stainless steel ) who stated our boilers are designed to cope with condensating 24/7 365 days a yr . I contacted worcester & asked them if they would honour there heat exc guarantee on the particular installation ,they would not .