[meldrewreborn]

There was a thread recently on the use of a dehumidifier to combat excess internal condensation.

I can’t find it again so am posting afresh. On the telegraph website was an article enthusing about the tradition in Germany of a short period once or twice a day of opening all the home windows to exchange the internal air. Apparently 5 minutes is enough. While some heat is lost, it’s not long enough to cool walls and furniture, so normal living conditions are soon restored once the windows are closed again

And it would also serve as a keep fit regime.

[WizzyWigg]

Afternoon @meldrewreborn I think the thread you were looking for is this one......

https://community.eonnext.com/thread...ll=1#post58518

[meldrewreborn]

@WizzyWigg

That's the one - I went back weeks - but missed it! Thank you.

[Indyk_EONNext]

Thank you for posting @meldrewreborn

We currently have a older style window in my daughters bedroom and waking up in the mornings the window is covered with water, 💦 so I am guessing a small dehumidifier may take away the water until we replace the window with a double glazed one or will keeping the window open a little before bed time help? I am just worried it may be too cold in the room.

[geoffers]

Originally Posted by Indyk_EONNext

Thank you for posting @meldrewreborn

We currently have a older style window in my daughters bedroom and waking up in the mornings the window is covered with water, 💦 so I am guessing a small dehumidifier may take away the water until we replace the window with a double glazed one or will keeping the window open a little before bed time help? I am just worried it may be too cold in the room.

Surely that's just creating an energy wasting solution rather than fixing the problem.

One of the issues with modern draught sealed buildings is there's nowhere for the condensation to go, hence you get damp/mould etc on cold surfaces.

Modern double glazing will have trickle vents to help prevent this - so best to keep the bedroom cold by having a slight gap in the window, and add more layers to the duvet etc.

We oldies survived with single glazed windows and no central heating - I love a colder bedroom with loads of blankets etc

[Indyk_EONNext]

@geoffers I guess you're right there!

So it will be layering up the blankets until the window is changed!

[meldrewreborn]

@Indyk_EONNext

one person would not produce much condensation overnight at this time of year - not a scientific observation but an educated guess. The excess moisture would be coming from general household activities. A cold room isn’t too much of an issue if the bed coverings have a good tog rating. Better to have a cold room to sleep in than a warm moist one from a health angle I’d have guessed.

many times in my youth the windows were completely iced over in winter - and I like @geoffers have lived to tell the tale.

[Indyk_EONNext]

@meldrewreborn yes I am guessing so however I think it may get worse in colder conditions! It's quite an older window with a wood frame.

See I am one of them that feels the cold loads so I have to have lots of blankets and even a hot water bottle!

[Connor_EONNext]

@Indyk_EONNext We had the same problem when we lived near the canal - the colder months were absolutely freezing, and then by the morning the windows would be dripping. Luckily these did get replaced, but I found that one of the handheld condensation vacuum worked a treat - only needs to be a cheap one. It definitely stopped the floors puddling.

[meldrewreborn]

As the law named after Awaab Ishak, who died from infections caused by the mould in his parents flat, comes into force today, it timely to remind people about condensation , mould and the need for ventilation in properties.

https://www.gov.uk/government/news/m...ugh-awaabs-law ( I think this headline is rather misleading , as only if the law is actively used by tenants will any protection be given.)

In Awaab's case, the Coroner did not find any structural leaks or damp to be a contributory cause. But the layout of the flat which had a bathroom with no window and a not fully working fan, a kitchen with a window onto a landing but no extractor fan, and the family living in a one bedroom flat were factors. As was the failure of the local Council to carry out remediation works.

Mould will form and proliferate when excess water vapour in the air condenses on cold surfaces. Normal day to day activities such as breathing, washing, cooking, clothes drying and the like all release moisture into the air. We've got very good at draught sealing properties, but the drawback is that natural ventilation is almost totally eliminated. If this moisture laden air is not removed mould is a likely result. Ventilation is key to removing the moisture laden air and replacing it with less moist air from outside. Moisture can also be captured by using a dehumidifier.

The law change today only applies to social housing, not private lets.