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extractor fan outlet / soil pipe distance?
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re...@to.newsgroup.invalid
Jul 27, 2015, 5:16:44 AM7/27/15
to
Hello,
There is no obvious outlet for the fan in the en suite. There is a
flexible duct behind the fan but I cannot see where it goes. I will
have to get a usb camera and feed it down. My worry is it that it
could be venting into the ceiling void.
I did wonder about drilling a hole through the gable end but then it
occurred to me that the soil stack is on that wall. Is there a
recommended distance between soil stack and fan to prevent sewer
smells entering through the ducting?
Thanks,
Stephen.
There is no obvious outlet for the fan in the en suite. There is a
flexible duct behind the fan but I cannot see where it goes. I will
have to get a usb camera and feed it down. My worry is it that it
could be venting into the ceiling void.
I did wonder about drilling a hole through the gable end but then it
occurred to me that the soil stack is on that wall. Is there a
recommended distance between soil stack and fan to prevent sewer
smells entering through the ducting?
Thanks,
Stephen.
Message has been deleted
JimK
Jul 27, 2015, 12:18:59 PM7/27/15
to
/I had a similar concern with an existing installation, so I fitted one
of these to the back of the extractor fan http://tinyurl.com/o77nf8d
In-line back-draught shutter are also available for fitting within the
ducting itself. /Q
Not really a solution is it?
Jim K
of these to the back of the extractor fan http://tinyurl.com/o77nf8d
In-line back-draught shutter are also available for fitting within the
ducting itself. /Q
Not really a solution is it?
Jim K
Message has been deleted
northern building inspector
Jun 22, 2021, 12:32:56 PM6/22/21
to
if the soil vent pipe termination point is within 3m or less of any opening [e.g window or extractor] then it should be at least 900mm above the highest openable part of the opening or ventilator. The pipework could be extended upwards to give this clearance or alternatively look at fitting an external [i.e frost proof ] air admittance valve [EAAV] that will let air in but not let air out thus stopping foul gas going back inside the property.
Further guidance may be found on page 62 of BS EN 12056 2000 ND.3.5.6 Termination of stack vents.
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For full context, visit https://www.homeownershub.com/uk-diy/extractor-fan-outlet-soil-pipe-distance-1063163-.htm
Further guidance may be found on page 62 of BS EN 12056 2000 ND.3.5.6 Termination of stack vents.
--
For full context, visit https://www.homeownershub.com/uk-diy/extractor-fan-outlet-soil-pipe-distance-1063163-.htm
Fredxx
Jun 22, 2021, 3:32:06 PM6/22/21
to
On 22/06/2021 17:32, northern building inspector wrote:
> if the soil vent pipe termination point is within 3m or less of any
> opening [e.g window or extractor] then it should be at least 900mm above
> the highest openable part of the opening or ventilator. The pipework
> could be extended upwards to give this clearance or alternatively look
> at fitting an external [i.e frost proof ] air admittance valve [EAAV]
> that will let air in but not let air out thus stopping foul gas going
> back inside the property. Further guidance may be found on page 62 of BS
> EN 12056 2000 ND.3.5.6 Termination of stack vents.
That could be very helpful.
> if the soil vent pipe termination point is within 3m or less of any
> opening [e.g window or extractor] then it should be at least 900mm above
> the highest openable part of the opening or ventilator. The pipework
> could be extended upwards to give this clearance or alternatively look
> at fitting an external [i.e frost proof ] air admittance valve [EAAV]
> that will let air in but not let air out thus stopping foul gas going
> back inside the property. Further guidance may be found on page 62 of BS
> EN 12056 2000 ND.3.5.6 Termination of stack vents.
Before replying to a 5 year old post through a broken website read this
first.
http://wiki.diyfaq.org.uk/index.php/Home_owners_hub
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