Neighbours Boiler Billowing Out Smoke Next To Kids Bedroom

[roses2]

My neighbour has their boiler flue outside my kids bedroom. When it's on it blows out a lot of smoke.

The window has an air vent and I have a carbon dioxide monitor.

Is this a dangerous position for her boiler?? What fumes are my children being exposed to?

It is just steam, but we have an up pipe of about 2 meters so the steam doesn’t go into our neighbours window. The plumber who fitted the boiler did this.

God
What a lot of Hot Air