Plastic CO2 vent?

5kybird

Hi all - our neighbours have just had some major plumbing / boiler works completed after several days. We think they had a new boiler and tank etc installed. We have noticed on the wall which faces our bedroom (the houses are detached) a new plastic pipe has appeared in our neighbours wall.


It sticks out around 10cm from a larger plastic cuff, and then has a 45 degree bend so it faces downwards and appears open to the air. It is positioned in the middle of the triangle formed by the eaves of the house. We are worried this could be a CO2 vent, especially as it is right next to our bedroom windows, but I am not sure it is for that? As we don't speak to them, because they are often rude, we can't ask.


I don't see what else it could be? Does anyone know?


Regards
5kybird

daveyjp

Is the pipe like this.

http://www.hancock-brown.co.uk/resources/Boiler+flue+terminal+outside+005.jpg

Or the white one?

http://www.thermco.co.uk/images/gallery/boiler_inst2.jpg

If the top its a flue and only has to be 300mm from an opening window.

If the other image its a condensate drain, but should be plumbed into a waste pipe (not a rainwater pipe like this, unless there is a bypass valve) and not open ended.

5kybird

Hi, thanks very much for replying, and with pictures! It's the same width and style as the White one in the bottom picture, but it's just sticking out from the wall, open to the air. It's possible they need to plumb it in to the drains next. How much condensation is likely to emerge?

daveyjp

The condensate drain does need plumbing in to something. All that comes out is slightly acidic water and it will probably drip rather than run constantly.

If it isn't plumbed properly your neighbours can look forward to it freezing in winter causing the boiler to cut out. If they plumb it to the rainwater pipe and the rain water drain becomes overloaded they can look forward to water backing up along the condensate pipe and into the boiler, wrecking it and possibly flooding the house.