A bit of a smell in the store cupboard with the CH boiler. Had it checked for gas leaks – none. Service engineer says he is 100% sure it's the vent stack, possibly blocked. The boiler in the photo is on the wall separating my semi-detached bungalow from the neighbour's.
The condensate pipe obviously goes into the stack vent the other side of the plaster panel, and the stack vent goes up into and through the loft to ventilator tiles on the ridge of the roof. I understand the boiler, an Intergas Xclusive 24, has a trap inside it, but my question is: shouldn't there be a trap in the pipe, the black one in the photo, before it goes into the stack vent. Otherwise, isn't this black pipe just an opening into the soil pipe which is bound to smell – the whole idea of the stack vent being to take smells to roof level.
The condensate pipe obviously goes into the stack vent the other side of the plaster panel, and the stack vent goes up into and through the loft to ventilator tiles on the ridge of the roof. I understand the boiler, an Intergas Xclusive 24, has a trap inside it, but my question is: shouldn't there be a trap in the pipe, the black one in the photo, before it goes into the stack vent. Otherwise, isn't this black pipe just an opening into the soil pipe which is bound to smell – the whole idea of the stack vent being to take smells to roof level.