Given the low flow rate is it OK to use 15mm for a 3m internal condensate plastic pipe run from the boiler (condensing replacement, to be installed) to the kitchen sink. It has to go through one brick wall and and behind a free standing fridge which is why I'd like it to be fairly thin and inconspicuous.
I have emailed Worcester Bosch Group and they replied (on the same day!)
I also emailed Vaillant and heard nothing. I have searched around and I am surprised that noone else has asked the same question. Thank you.
I have emailed Worcester Bosch Group and they replied (on the same day!)
Unfortunately only 22mm condense pipe work can be used.
It is an industry standard that the condensate pipe comes in that size.
I also emailed Vaillant and heard nothing. I have searched around and I am surprised that noone else has asked the same question. Thank you.