Double glazing condensation overnight - Help

lazytoad2001

Hi All


I have moved into a new house with huge double glazed units which overnight when the heating is off and we are expending heat get condensation on them. I have now started making sure I open a window when I get in from work to "dry" the room etc. However I have a daft question perhaps, these units have 2 strings on them at the very top which clearly pull something?!


Any ideas is this like a ventilation flap or something? Any other prevention of condensation tips?

elsien

Might be a trickle vent, but you probably need it warmer at night as well. If there's ni heating, you will get condensation.

lazytoad2001

OK thanks, I shall also tinker with the heating controller see what I can do to make it warmer overnight.