Plumbing bath into boiler condensate drain?

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14 Nov 2021
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United Kingdom
First time poster here. Looking to renovate old bathroom on 1st floor of 1950s semi and want to relocate bath to a different corner. Is it possible to plumb the bath drain into the condensate drain pipe fitted for a combi boiler? It's a 1.5 inch PVC pipe which runs out of the external wall and feeds into the existing drain. Pictures attached.
Any recommendations well received!


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I'm afraid that the condensate pipe is considered part of the boiler flue system and so can't be messed around with by a DIY'er.
That said, as long as the falls are correct, that hole could be suitable for a bath drain.
So maybe the question should be, can a condensate pipe empty into a bath drain!
And the answer is probably yes, but it must be installed/adapted by a Gas Safe fitter.

I hope that makes sense :)

Fair comment.
This must be decided by a Gas Safe Registered operative on site, who can refer to the relevant sources as he/she decides is appropriate. We have a "Combustion chamber" for GSR folk and do not support open discussion of gas matters in this part of the site.
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