Ah, yes the flue is rear exit but with an elbow from the top, so probably would need disturbing, Thanks for pointing that out. I'll check the measurement and see if it could squeeze past (unless you happen to know it won't of course!..
Hi All,
Thanks for this great forum, followed some advice in another Vaillant thread I found earlier. My 'in laws' need a new expansion vessel, the water spewing out of it into my bike pump was a bit of a giveaway..
I was hoping somebody could tell me the process for changing said...