Agile said:It was common to have combined drainage before 1958 but it varied from area to area and between developments.
The only way to check is to lift inspection chamber covers and see if they pass toilet flushes and rainwater in the same pipe. If not then its probably seperate.
There are chemicals in the condensate which I would not expect would be allowed into rivers. But I dont know!
Tony
Agile said:I would not recommend a non condensing boiler as that will probably not be permissable as an exclusion and will give you problems when selling. Quite apart from the efficiency saving.
There should be no reason why the condensate cannot be routed into your foul drains via your bathroom or kitchen waste fittings or externally.
Tony
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