Extractor fan

loltim

loltim

loltim

Soldato
Joined
21 Oct 2002
Posts
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Location
Wellington, NZ
Seem to be having a few condensation issues with the house, mainly in the kitchen and dining room.

Can anyone recommend a decent extractor fan that's relatively quiet and low wattage?

Can you get automated fans that extract when they detect moisture or will I need to turn the fan on manually?

It's a pretty old house, built in 1906 iirc. We've already had a damp proof injection.
 
ah ok, no I won't need a lengthy duct.

where's the best place to put the fan then? would it be ok above the kitchen cupboards?
 
Wherever is most suited for core drilling.

Think most of them would be the same size as a flue so any plumber should have a core drilling set.
 
Fitted a Xpelair fan a few months ago, I got caught out, it need a 150mm diameter hole, & not the usual 100mm:(, had to go & hire a bigger drill & a 150mm core bit for 30 minutes work.:mad:
 
An exact fan can't be recommended until you say what size of rooms they are for.
If you get one with too low an air flow, it may make little or no difference.
 
gort said:
An exact fan can't be recommended until you say what size of rooms they are for.
If you get one with too low an air flow, it may make little or no difference.
Click to expand...

I use this handy calculator from TLC for calculating room volume & fan size, once you have a figure, you can then look around for something suitable.

http://www.tlc-direct.co.uk/Technical/Ventilation/Ventilation4.html

In a kitchen building regulations requires fan capable of extracting 60 litres per second 216m3/hr (127CFM) when installed.
 
Last edited:
loltim said:
Can anyone recommend a decent extractor fan low wattage?

Can you get automated fans that extract when they detect moisture?
Click to expand...

I have this and it works good. It's SELV (safety extra low voltage) with a transformer that you install outside the bathroom. The humidistat turns the fan on automatically when it detects humidity, and you can adjust the sensitivity. http://www.ebay.co.uk/itm/12V-Bathr...arden_Hearing_Cooling_Air&hash=item51a5159534

It also has a pullcord so you can turn it on and off manually if you want to.
 
Thanks for all the replies guys. Think we need to get a tumble dryer ASAP too, we're drying clothes inside with this weather, doesn't help condensation!
 
Guy over the road lives in rented housing - he has just had 2 fan's fitted -(bathroom and kitchen)- they run 24/7 very slow until it senses moisture then speeds up - he said it's cured his condensation problem - sorry have no idea what they are called.

get a condensing tumble dryer or get one of those unit's you put hose into to catch steam.

Dave
 
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