Condensing Boilers

[joineryisahobbynotatrade]

Whats the rgi`s on this site`s opinion on the reliability of HE boilers.I have seen a number of boilers fitted roughly 6 years ago needing replaced due to corrosion.Mainly Worcster Greenstars.I know there used to be problems with the metal flue inner (now plastic) but i have seen a number of boilers eating theselves with corrosion.I believe the water differences Scotland/England may have something to do with it,but i had a meeting with a rep the other day and he replied with "im not allowed to talk about it"and a smile

 

[Rob]

greenstars are only 3/4 years old and never heard anything of them 'eating' themselves??

Metal flues are ok as they are SS.

Most HE boilers are fine if installed correctly.

 

[Gasguru]

Sorry rob but have to strongly disagree with you there.

Had a look at Greenstars baffles from the WB3 heat exchangers?

This one and all the others I've seen are nicely corroding after only a year in service - check the lower baffle lower edges. Debris is trapped between the lower baffle and the heat exchanger allowing condensate to collect. The corrosion makes it a struggle to remove the baffle - after a few years they will be siezed solid - get your hydraulic pullers and slide hammer ready.


and a cut away of the heat exchanger