Dehumidifier fills up VERY quickly... Causes?

James_Morgan_McGill

the_r_sole wrote: »

Are you running the dehumidifier with a window open?!

90% of the time I'm running it with the window closed.

I'll admit, some of the time I've had the window open a little bit while it's running overnight, I suppose thinking it would help ventilate the room.

I see now that this would result in the dehumidifer trying to pull moisture out of the colder night air! :doh:So I will stop doing that!

Also the double glazed window doesn't have a trickle vent. I've read mixed things about whether they're useful, but another possible factor.

Mojisola

James_Morgan_McGill wrote: »

It's one of these:

http://www.amazon.co.uk/gp/product/B007XUCG8O?psc=1&redirect=true&ref_=oh_aui_detailpage_o03_s00

I have it configured so it's always running at a low level, then extracts more when it detects the shower's on and the moisture is rising.

So it is taking the moist air out of the flat?

zaax

Sounds like it working - follow the instruction in the manual turning it down as needed.

A shower puts an amassing amount of water in the air. When was the extractor tube last cleaned of spider webs etc.?

James_Morgan_McGill

Mojisola wrote: »

So it is taking the moist air out of the flat?

Well, there's no window in the bathroom. The room would fill up with steam with the previous extractor fan when I had a shower. With this new one, the room only half-fills up with steam. I suspect it will perform better once it's been properly tiled in, so that it's air-tight.

pogofish

At this time of year, two days sounds about right for a 2l machine running at medium power. It will fall a bit more as summer finally sets-in but will rise again in autumn/winter - when you will probably be emptying it at least daily.

You will probably also find that if its a fairly new addition to your home, the dehumidifier will take a bit more moisture in the first few weeks - this is due to everything drying out a better.

paddyrg

I'd be more concerned if it wasn't drawing moisture out of a previously damp, recently redecorated room. Let it do its thing and see if it changes over the next 6 months. Remember as the surface wall dries out, moisture from deeper will even out, and so drying will take time to get it all.

James_Morgan_McGill

paddyrg wrote: »

I'd be more concerned if it wasn't drawing moisture out of a previously damp, recently redecorated room. Let it do its thing and see if it changes over the next 6 months. Remember as the surface wall dries out, moisture from deeper will even out, and so drying will take time to get it all.

Thanks for this.

I will get the gutters cleaned and the downpipe and roof tiles replaced now we have good weather, as the water cascading down the outside wall will certainly lead to worsening damp if I leave it till winter.

sniggings

James_Morgan_McGill wrote: »

Also the double glazed window doesn't have a trickle vent. I've read mixed things about whether they're useful, but another possible factor.

You should be pleased you don't have a trickle vent on the window, they let loads of noise in, they are not needed, open the window for 15 minutes a day and that will do the job better than the vent.

My bedroom goes up to around 58% during the night, with breathing, opening the window in the morning and it drops to around 48%.

As long as it's not wet outside, the air will most likely be dryer than the air inside.