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Extractor Fan Replacement - 100mm to 150mm
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Polskasweetie
Feb 23, 2021, 11:15:07 AM2/23/21
to
Hello all, and i do apologise in advance if this has been asked before, but have no reliable people to turn to here for this.
Currently have an Airflow Loovent Eco 100mm extractor fan in the kitchen, that stopped working a few days ago. Looking around, and in consideration of the square hole the existing fan will leave when replaced, I am thinking of replacing it with the Airflow QuietAir QT150B.
1) is it safe / ok to replace with a bigger fan, or do i have to stick with a 100mm fan as a replacement?
2) Read in the forums about centrifugal etc. I know the Loovent is centrifugal, but the QuietAir is "axial high efficiency impeller" (from the description). Do i stick with another cntrifugal model, or can i switch to this axial one?
It is a residential kitchen measuring 3m x 2.2m x 2.2m. Also, considering the fan models mentioned above, if you have suggestions and why I'm more than happy to hear them.
Thanks!
--
For full context, visit https://www.homeownershub.com/uk-diy/extractor-fan-replacement-100mm-to-150mm-3100269-.htm
Currently have an Airflow Loovent Eco 100mm extractor fan in the kitchen, that stopped working a few days ago. Looking around, and in consideration of the square hole the existing fan will leave when replaced, I am thinking of replacing it with the Airflow QuietAir QT150B.
1) is it safe / ok to replace with a bigger fan, or do i have to stick with a 100mm fan as a replacement?
2) Read in the forums about centrifugal etc. I know the Loovent is centrifugal, but the QuietAir is "axial high efficiency impeller" (from the description). Do i stick with another cntrifugal model, or can i switch to this axial one?
It is a residential kitchen measuring 3m x 2.2m x 2.2m. Also, considering the fan models mentioned above, if you have suggestions and why I'm more than happy to hear them.
Thanks!
--
For full context, visit https://www.homeownershub.com/uk-diy/extractor-fan-replacement-100mm-to-150mm-3100269-.htm
The Natural Philosopher
Feb 23, 2021, 11:23:11 AM2/23/21
to
On 23/02/2021 16:15, Polskasweetie wrote:
> Hello all, and i do apologise in advance if this has been asked before,
> but have no reliable people to turn to here for this.
>
> Currently have an Airflow Loovent Eco 100mm extractor fan in the
> kitchen, that stopped working a few days ago. Looking around, and in
> consideration of the square hole the existing fan will leave when
> replaced, I am thinking of replacing it with the Airflow QuietAir QT150B.
> 1) is it safe / ok to replace with a bigger fan, or do i have to stick
> with a 100mm fan as a replacement?
>
> 2) Read in the forums about centrifugal etc. I know the Loovent is
> centrifugal, but the QuietAir is "axial high efficiency impeller" (from
> the description). Do i stick with another cntrifugal model, or can i
> switch to this axial one?
>
> It is a residential kitchen measuring 3m x 2.2m x 2.2m. Also,
> considering the fan models mentioned above, if you have suggestions and
> why I'm more than happy to hear them.
>
> Thanks!
>
I'd go for whatever fits the vent hole. In fact you may simply have lost
> Hello all, and i do apologise in advance if this has been asked before,
> but have no reliable people to turn to here for this.
>
> Currently have an Airflow Loovent Eco 100mm extractor fan in the
> kitchen, that stopped working a few days ago. Looking around, and in
> consideration of the square hole the existing fan will leave when
> replaced, I am thinking of replacing it with the Airflow QuietAir QT150B.
> 1) is it safe / ok to replace with a bigger fan, or do i have to stick
> with a 100mm fan as a replacement?
>
> 2) Read in the forums about centrifugal etc. I know the Loovent is
> centrifugal, but the QuietAir is "axial high efficiency impeller" (from
> the description). Do i stick with another cntrifugal model, or can i
> switch to this axial one?
>
> It is a residential kitchen measuring 3m x 2.2m x 2.2m. Also,
> considering the fan models mentioned above, if you have suggestions and
> why I'm more than happy to hear them.
>
> Thanks!
>
a starter cap.
some axial fans are quite noisy. check noise levels
--
Gun Control: The law that ensures that only criminals have guns.
Theo
Feb 23, 2021, 11:36:32 AM2/23/21
to
Polskasweetie <f525caf11fa53b2f...@example.com> wrote:
> Hello all, and i do apologise in advance if this has been asked before,
> but have no reliable people to turn to here for this.
>
> Currently have an Airflow Loovent Eco 100mm extractor fan in the kitchen,
> that stopped working a few days ago. Looking around, and in consideration
> of the square hole the existing fan will leave when replaced, I am
> thinking of replacing it with the Airflow QuietAir QT150B.
There isn't a square hole - there's a 100mm circular hole. The unit is
> Hello all, and i do apologise in advance if this has been asked before,
> but have no reliable people to turn to here for this.
>
> Currently have an Airflow Loovent Eco 100mm extractor fan in the kitchen,
> that stopped working a few days ago. Looking around, and in consideration
> of the square hole the existing fan will leave when replaced, I am
> thinking of replacing it with the Airflow QuietAir QT150B.
screwed to the wall/ceiling outside of that area - that may leave a
square-ish part where the paint finish differs if the area has been painted
since the unit was fitted.
> 1) is it safe / ok to replace with a bigger fan, or do i have to stick
> with a 100mm fan as a replacement?
what the hole is in. Don't forget there may be a duct behind it, so it's
not just cutting the ceiling but you'd also need to upgrade the duct and
exhaust vent as well. Unless there's a good reason to get a bigger fan
(airflow, noise?) it wouldn't be worthwhile, IMHO.
> 2) Read in the forums about centrifugal etc. I know the Loovent is
> centrifugal, but the QuietAir is "axial high efficiency impeller" (from
> the description). Do i stick with another cntrifugal model, or can i
> switch to this axial one?
comes in from below (assuming the unit is ceiling mounted). Axial means you
can see into the fan from below, not for centrifugal. Which is best depends
where the vapour you're trying to extract is coming from.
Theo
Polskasweetie
Feb 23, 2021, 11:45:07 AM2/23/21
to
Sorry, forgot to mention it is for a 2nd floor (of a 3 floor) flat so unsure how long or short the ducting is, or where it actually goes out to.
Polskasweetie
Feb 23, 2021, 5:45:05 PM2/23/21
to
Thanks very much for all of your input, it’s very helpful indeed. I’ve decided to play it safe, replace like for like, so now looking around for boxy 100mm centrifugal fans that are hopefully not too expensive, around the 100-200 quid mark. Thanks again!
Owain Lastname
Feb 24, 2021, 4:43:49 AM2/24/21
to
On Tuesday, 23 February 2021 at 16:15:07 UTC, Polskasweetie wrote:
> 2) Read in the forums about centrifugal etc. I know the Loovent is centrifugal, but the QuietAir is
> "axial high efficiency impeller" (from the description). Do i stick with another cntrifugal model,
> or can i switch to this axial one?
Axial is okay for through the wall or with short lengths of duct.
> 2) Read in the forums about centrifugal etc. I know the Loovent is centrifugal, but the QuietAir is
> "axial high efficiency impeller" (from the description). Do i stick with another cntrifugal model,
> or can i switch to this axial one?
For longer lengths of duct you really need centrifugal to overcome the duct resistance to airflow.
Owain
Brian Gaff (Sofa)
Feb 24, 2021, 5:14:29 AM2/24/21
to
Well leave home owners club and use a proper news client as it will make
life far less stressful in the long run. Anyway, apart from noise or voltage
differences a larger fan should simply move more air, so as long as you can
get it in in a tidy way, I'd say go for it, you might also have a look and
see why the old one actually failed. it might be just seized up after all.
Brian
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This newsgroup posting comes to you directly from...
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"Polskasweetie" <f525caf11fa53b2f...@example.com> wrote in
message news:16666c94dfe7ec65$1$825144$4266...@news.newsgroupdirect.com...
life far less stressful in the long run. Anyway, apart from noise or voltage
differences a larger fan should simply move more air, so as long as you can
get it in in a tidy way, I'd say go for it, you might also have a look and
see why the old one actually failed. it might be just seized up after all.
Brian
--
This newsgroup posting comes to you directly from...
The Sofa of Brian Gaff...
bri...@blueyonder.co.uk
Blind user, so no pictures please
Note this Signature is meaningless.!
"Polskasweetie" <f525caf11fa53b2f...@example.com> wrote in
message news:16666c94dfe7ec65$1$825144$4266...@news.newsgroupdirect.com...
Roger Hayter
Feb 24, 2021, 6:14:11 AM2/24/21
to
On 23 Feb 2021 at 16:45:04 GMT, "Polskasweetie"
a fan suitable for a duct as the common, cheaper ones will not work very well
at all with any significant length of duct (more than 400mm or so). The exact
length of duct will affect efficiency but if you don't know the length then it
it is reasonable to get one designed for ducted use so it will work even if
you don't know exactly how well.
--
Roger Hayter
<f525caf11fa53b2f...@example.com> wrote:
> Sorry, forgot to mention it is for a 2nd floor (of a 3 floor) flat so unsure
> how long or short the ducting is, or where it actually goes out to.
It is probably best to assume a moderate length of duct then, because you need
> Sorry, forgot to mention it is for a 2nd floor (of a 3 floor) flat so unsure
> how long or short the ducting is, or where it actually goes out to.
a fan suitable for a duct as the common, cheaper ones will not work very well
at all with any significant length of duct (more than 400mm or so). The exact
length of duct will affect efficiency but if you don't know the length then it
it is reasonable to get one designed for ducted use so it will work even if
you don't know exactly how well.
--
Roger Hayter
Owain Lastname
Feb 24, 2021, 8:48:16 AM2/24/21
to
On Tuesday, 23 February 2021 at 16:45:07 UTC, Polskasweetie wrote:
> Sorry, forgot to mention it is for a 2nd floor (of a 3 floor) flat so unsure how long or short the
> ducting is, or where it actually goes out to.
In that case get a centrifugal fan.
> Sorry, forgot to mention it is for a 2nd floor (of a 3 floor) flat so unsure how long or short the
> ducting is, or where it actually goes out to.
Owain
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