Timer delay for extractor fan
 

I have a fairly powerful extractor fan fitted in my bathroom ceiling however
it has no overrun timer facility so that when I switch the light off, the
fan immediately goes off. Anyone any ideas/recommendations for how I can add
a suitable timer to it..... really need it to run for an extra 20 minutes or
so. Have looked on Google but no success yet.
Thanks
Geoff

Timer delay for extractor fan
 

In article ,
Geoff Norfolk wrote:
I have a fairly powerful extractor fan fitted in my bathroom ceiling
however it has no overrun timer facility so that when I switch the light
off, the fan immediately goes off. Anyone any ideas/recommendations for
how I can add a suitable timer to it..... really need it to run for an
extra 20 minutes or so. Have looked on Google but no success yet.

It's one of those things that is easy to make if you have some electronics
experience. Maplin do a kit which could be adapted to this use. However,
at the end of the day it would probably be cheaper/easier to just replace
the fan with one which has the timer built in.

--
*Arkansas State Motto: Don't Ask, Don't Tell, Don't Laugh.

Dave Plowman London SW
To e-mail, change noise into sound.

Timer delay for extractor fan
 

In message , Geoff Norfolk
writes
I have a fairly powerful extractor fan fitted in my bathroom ceiling however
it has no overrun timer facility so that when I switch the light off, the
fan immediately goes off. Anyone any ideas/recommendations for how I can add
a suitable timer to it..... really need it to run for an extra 20 minutes or
so.

I used a humidistat to control mine.

--
Chris French

Timer delay for extractor fan
 

"Geoff Norfolk" wrote in message
...
I have a fairly powerful extractor fan fitted in my bathroom ceiling
however
it has no overrun timer facility so that when I switch the light off, the
fan immediately goes off. Anyone any ideas/recommendations for how I can
add
a suitable timer to it..... really need it to run for an extra 20 minutes
or
so. Have looked on Google but no success yet.
Thanks
Geoff


======================
Have a look at this. You may need to separate the fan switching from the
light.

http://www.screwfix.com/app/sfd/sea/...w=timer+switch

B&Q also do two versions - look for 'Columbus' or similar name.

Cic.

Timer delay for extractor fan
 

chris French wrote:

I used a humidistat to control mine.

Not so good for getting rid of stinky farts.
:¬)
--
http://gymratz.co.uk - Best Gym Equipment & Bodybuilding Supplements UK.
http://trade-price-supplements.co.uk - TRADE PRICED SUPPLEMENTS for ALL!
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http://gymratz.co.uk/hot-seat.htm - Live web-cam! (sometimes)

Timer delay for extractor fan
 

chris French wrote:
In message , Geoff Norfolk
writes

I have a fairly powerful extractor fan fitted in my bathroom ceiling
however
it has no overrun timer facility so that when I switch the light off, the
fan immediately goes off. Anyone any ideas/recommendations for how I
can add
a suitable timer to it..... really need it to run for an extra 20
minutes or
so.

I used a humidistat to control mine.

Actually I'm just about to swap an overrun timer model to one which has
both overrun (needed cos it's an internal bathroom) as well as a
humidistat, in an effort to try and control a general condensation problem.

I was wondering, what % humidity should I set the thing to? I'm sure it
will want a bit of calibrating anyway, but a starting point would be
useful. Also, it's for a property which I rent out, so I won't have too
much opportunity to fine-tune it.

David

Timer delay for extractor fan
 

In article , Lobster wrote:

Actually I'm just about to swap an overrun timer model to one which has
both overrun (needed cos it's an internal bathroom) as well as a
humidistat, in an effort to try and control a general condensation problem.

Which one did you get? I'm looking for one with a 12 or 24V transformer
output.

G.

Timer delay for extractor fan
 

In message , "Pet @
www.gymratz.co.uk ;¬)" writes
chris French wrote:

I used a humidistat to control mine.

Not so good for getting rid of stinky farts.
:¬)

I had switch operation as well, though never found need to use it much.
--
Chris French

Timer delay for extractor fan
 

Gerd Busker wrote:
In article , Lobster wrote:


Actually I'm just about to swap an overrun timer model to one which has
both overrun (needed cos it's an internal bathroom) as well as a
humidistat, in an effort to try and control a general condensation problem.


Which one did you get? I'm looking for one with a 12 or 24V transformer
output.

It's a Manrose (can't remember the model number of the top of my head;
but it's a mains one).

David

Timer delay for extractor fan
 

======================
Have a look at this. You may need to separate the fan switching from the
light.

http://www.screwfix.com/app/sfd/sea/...w=timer+switch

B&Q also do two versions - look for 'Columbus' or similar name.

Cic.


I was in same situation as the OP recently & thought of same pneumatic
timer switch (wickes have them cheaper at 9.99!).
But I wasn't sure if you can still use them to break a more inductive load
like a fan motor rather than just a light?