Worcester Heatslave Oil Combi 20/25 Advice needed

[fanman]

Hi. Hope I do this right as I am a newbie!!
My Worcester Oil Combi20/25 has developed a leak. It appears to be from a seam at the bottom of the large metal tank that sits behind the expansion vessel and burner (not sure what the part is actually called - water jacket?? It must house the combustion chamber etc) I have attached an image and marked the part XXXX in red.

Anyway, I am trying to source a spare. Will the part from a 15/19 fit as I have the chance of one.? (Don't want to replace the boiler as I am moving soon.)

Any help would be very much appreciated. Part number would be great!!
Thank you

 

[Best]

That part you describe is the main boiler shell, but I suppose your description of "water jacket" is accurate.
You really shouldn't be using a boiler that is designed to be smaller output than what you have.
That said, it might be similar outer size.
You could try getting leak sealer into system first.

 

[SimonG]

Worcester will sell them or swap the whole boiler.

 

[fanman]

Worcester will sell them or swap the whole boiler.

Thank you. I will contact them but I guess this part will be obsolete by now. If it is available I think it will be mega expensive! I still don't know what the proper name for the part is either.