It was an old fashioned row of terrace houses and the boiler was fitted in the cellar on the gable end discharging into the garden of another row at 90degrees to the ones i was in. Tbh, i really knew the ansawer but i'd had a cr#p week and it was the first decent job all week and as usual its for a landlord & could see me telling her it would have to be moved and her getting somebody cheaper who wouldn't be bothered with doing it right. Anyway after calming down, i just said i wouldn't do it unless it was done right. Happy days, got the job anyway but the landlord said could she pay me out of the £350 per month rent for the next 5 /6 months - priceless !! Got to make you laugh