No flue?
Is this for real?
The flue is there but out of site as the boiler is located on the first floor.
Its only permissable to terminate in a rainwater pipe if its a combined soil and rain single drain which were usual before about 1950 ( But that house looks quite modern and if its a two drain system then it should go into the foul drain ).
The house was built in 1990.
The first service is due next month so should they complain due to a lack of drop, no insulation and terminates in a guttering down pipe?
Is this part of building regulations or corgi rules?