Humidistat fan

casey972

I live in an old house with single glazed windows and lots of condensation on the windows.

I am considering installing humidistat extractor fans in both my bathrooms over the showers. The electrician has confirmed that the ceilings are high enough to do this.

Both of the fans will extract through the loft and out through a hole in the exterior loft wall. One fan will require 5-6 metres of ducting and the other 1-2 metres.

Has anyone used these humidistat fans and do they work?

Can anyone recommend a made/model to be (ideally with integrated light)?

Thanks

Leebobs

I'm looking into doing the same thing Casey. From what I can tell, as the fan is going to be placed in what is known as "Zone 1" you will need to fit a separated extra low voltage (SELV) device.

They don't have a light but I have been recommended the Xpelair LVCF20TDC

They have the added advantage of using very little electricity when compared to normal extractor fans and shouldn't increase your bills to much!

We will be having this installed, as well as LED downlights in the next few months.

Many thanks

casey972

Thanks for this Leebobs.

My electrician has said it's not zone 1 as my ceilings are high, don't know if this helps you.

Have had a look at the fan but don't see any mention of ducting. Have you needed to look into this?

At a bit over £200 each, it's pretty expensive too and I need two of them but I take your point re the electricity bill.

Anyone else have any thoughts?

Thanks
Casey

jellymid

We've been looking at the ones here...

www.iconfan.co.uk

I like the fact that they have an automatic shutter cover when they are off - less draughty than our current ones. I think the ICON 30 and ICON 60 can have long duct runs and you choose the humidity control module to go with it.

dampdaveski

Hi casey,
the ones I have fitted loads of (or our sparky has) is the nuaire Genie MX this is an inline centrifugal fan, which can either run continously on trickle mode or have a 20 min overrun.
The other ones i've fitted are the envirovent unit, but the inline model is quite pricey.
I've had 2 of the genie fans fitted in my house for nearly 3 years and not had a problem with them at all
Brochure is available HERE
I use these peeps a lot and found them to be very helpful.
You might even try ringing nuaire direct as they sell to the public
www.nuaire.co.uk
you can get info on the envirovent unit at www.envirovent.com

hope this helps
DD

casey972

Hi DD, Have had a look at the Nuaire and it seems impressive but I can't see that it has a humidity sensor which would turn the fan on/off, (don't trust my lot to turn it on when they go for a shower). Am I missing something?

Jellymid, the icon looks great, will investigate further. Thanks

zax47

Generally the fan is triggered from the light circuit, the humidistat keeps it running until the humidity has reduced to the desired level.

gmgmgm

We put in a humidistat for about £30 from Screwfix. It's great- when the humidity is low (ie normally), there's no noisy fan.
Rather simpler than the OP- this was to replace an existing broken fan.

dampdaveski

casey,
the genie fan doesn't have a humidistat, as it's a contonous duty fan it works all the time, it can either come onto boost with the lights or manually (via pullcord) and when not in use it runs on trickle mode, thus creating a 'continous' ventilation, this negates the need for using a humidistat
hope this makes sense
DD

casey972

Thanks to everyone for their help and advice. I am hoping to see my electrician over the next few days to discuss the various options with him. There are so many different choices, it's hard to know what is best but I value all your input.

ic

I had a fan with humidistat that went pop, I replaced it with a fan that just had a fixed timer on it. Now if I pop to the loo before bed time, I lie in bed listening to the sound of the fan - wish I'd paid the extra and bought one with the humidistat built in, as it only continued to run after the light was switched off it it was necessary.