I am looking to install an extractor fan to remove vapour from a shower and toilet niffs. Are inline fans better than ceiling mount fans and where is the best place to locate the grill with the toilet pan and shower at opposite ends of the bathroom. I would rather not site it above the shower as fitting is a little awkward not to mention claustrophobic owing to the shallow angle of the roof approx. 22deg.?

Richard

On Monday, 24 July 2017 14:41:53 UTC+1, Tricky Dicky wrote:
I am looking to install an extractor fan to remove vapour from a shower and toilet niffs. Are inline fans better than ceiling mount fans

they can be sat on rubbery bits in the ceiling void.

and where is the best place to locate the grill with the toilet pan and shower at opposite ends of the bathroom. I would rather not site it above the shower as fitting is a little awkward not to mention claustrophobic owing to the shallow angle of the roof approx. 22deg.?

Richard

the closer to the bog pan the better


NT

ooTricky Dicky wrote:

I am looking to install an extractor fan to remove vapour from a shower and toilet niffs. Are inline fans better than ceiling mount fans and where is the best place to locate the grill with the toilet pan and shower at opposite ends of the bathroom. I would rather not site it above the shower as fitting is a little awkward not to mention claustrophobic owing to the shallow angle of the roof approx. 22deg.?

Inline are generally best, but there are good and bad ones
around.

I would have thought that you would want the grille over the
shower, for best overall performance, but you don't tell us where
the air is flowing into the room to replace what you are
extracting, which is another consideration for airflow.

After recommendation here, I bought one of these:
http://www.tlc-direct.co.uk/Products...ENTslashT.html

Admittedly not cheap, but I was amazed by how quiet it was, I had
to feel the air to be sure it was running. You can't even hear it
in the bathroom, certainly not elsewhere.

It is screwed to a board across a couple of joists, and there
seems to be no discernable direct transmission. The mounting
bracket includes some rubber isolation material.

The airflow is far better than the (failed) cheap one it
replaced. It can push-fit into the pipework, and is readily
removable for cleaning.

Chris
--
Chris J Dixon Nottingham UK


Plant amazing Acers.

On 24/07/17 15:25, Chris J Dixon wrote:
ooTricky Dicky wrote:

I am looking to install an extractor fan to remove vapour from a shower and toilet niffs. Are inline fans better than ceiling mount fans and where is the best place to locate the grill with the toilet pan and shower at opposite ends of the bathroom. I would rather not site it above the shower as fitting is a little awkward not to mention claustrophobic owing to the shallow angle of the roof approx. 22deg.?

Inline are generally best, but there are good and bad ones
around.

I have a Solar Palau in line fan and it's pretty effective.

I would have thought that you would want the grille over the
shower, for best overall performance, but you don't tell us where
the air is flowing into the room to replace what you are
extracting, which is another consideration for airflow.

After recommendation here, I bought one of these:
http://www.tlc-direct.co.uk/Products...ENTslashT.html

Not that model, but similar.

Admittedly not cheap, but I was amazed by how quiet it was, I had
to feel the air to be sure it was running. You can't even hear it
in the bathroom, certainly not elsewhere.

It is screwed to a board across a couple of joists, and there
seems to be no discernable direct transmission. The mounting
bracket includes some rubber isolation material.

The airflow is far better than the (failed) cheap one it
replaced. It can push-fit into the pipework, and is readily
removable for cleaning.

Chris

Chris, the shower is going to be a full length walk in situated beside the outer wall which has a long narrow high level window roughly at eye level when stood in the shower. The window will be the principle source of replacement air the toilet is at the other end of the bathroom roughly 2m centre of pan to centre of shower.

Richard

Tricky Dicky wrote:

Chris, the shower is going to be a full length walk in situated beside the outer wall which has a long narrow high level window roughly at eye level when stood in the shower. The window will be the principle source of replacement air the toilet is at the other end of the bathroom roughly 2m centre of pan to centre of shower.

In that case I would say that your easier installation at the
toilet end would seem to be the better bet, to get the air moving
across the whole room.

Chris
--
Chris J Dixon Nottingham UK


Plant amazing Acers.

Thanks for the advice and pointers.

Richard

On Mon, 24 Jul 2017 15:25:37 +0100, Chris J Dixon wrote:

ooTricky Dicky wrote:

I am looking to install an extractor fan to remove vapour from a shower
and toilet niffs. Are inline fans better than ceiling mount fans and
where is the best place to locate the grill with the toilet pan and
shower at opposite ends of the bathroom. I would rather not site it
above the shower as fitting is a little awkward not to mention
claustrophobic owing to the shallow angle of the roof approx. 22deg.?

Inline are generally best, but there are good and bad ones around.

I would have thought that you would want the grille over the shower, for
best overall performance, but you don't tell us where the air is flowing
into the room to replace what you are extracting, which is another
consideration for airflow.

After recommendation here, I bought one of these:
http://www.tlc-direct.co.uk/Products...ENTslashT.html

Admittedly not cheap, but I was amazed by how quiet it was, I had to
feel the air to be sure it was running. You can't even hear it in the
bathroom, certainly not elsewhere.

It is screwed to a board across a couple of joists, and there seems to
be no discernable direct transmission. The mounting bracket includes
some rubber isolation material.

The airflow is far better than the (failed) cheap one it replaced. It
can push-fit into the pipework, and is readily removable for cleaning.

Chris

We have several of these (or near offer) to do extraction duties in two
bathrooms and the kitchen (plus a failed attempt to move warm air between
rooms).

The upstairs bathroom vent is over the bath/shower but still seems to keep
the atmosphere reasonably clear at dump time.

In the kitchen we have two vents, so you could always have two vents, one
over the shower and the other over the toilet, joined by a Y piece before
connecting to the fan.

In general I would put a single vent as near to the shower as feasible
because I think shifting humid air probably needs more flow than stopping
fumes seeping under the door.

Obviously half way between the two should work as a compromise. Only you
will know which of the two needs more air flow. :-)

Cheers


Dave R



--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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Tricky Dicky formulated the question :
I am looking to install an extractor fan to remove vapour from a shower and
toilet niffs. Are inline fans better than ceiling mount fans and where is the
best place to locate the grill with the toilet pan and shower at opposite
ends of the bathroom. I would rather not site it above the shower as fitting
is a little awkward not to mention claustrophobic owing to the shallow angle
of the roof approx. 22deg.?

Always best, at the opposite side of the room to where air comes in.
Idea is to prevent steam and smells escaping via the door, drawing air
across the room. Usually that will be directly opposite the door.

Just another thought the idea of two intake grills. The ceiling in the bathroom will be lowered enough to fit some rectangular ducting so I could fit two grills one over the WC pan and over the shower. Is this gilding a lily or will this improve niff and vapour extraction? If viable would I be better reducing down from 125mm ducting to 100mm ducting to connect the two grills?

Finally which is better to fit a back flow restrictor immediately after the fan or use a flapped wall outlet? The distance from the fan position will be about 6m to the wall outlet.

On Wednesday, 26 July 2017 11:31:48 UTC+1, Tricky Dicky wrote:

Just another thought the idea of two intake grills. The ceiling in the bathroom will be lowered enough to fit some rectangular ducting so I could fit two grills one over the WC pan and over the shower. Is this gilding a lily or will this improve niff and vapour extraction?

I don't see an upside in taking half the airflow at each point.

If viable would I be better reducing down from 125mm ducting to 100mm ducting to connect the two grills?

no


NT

On Wed, 26 Jul 2017 03:31:45 -0700, Tricky Dicky wrote:

Just another thought the idea of two intake grills. The ceiling in
the bathroom will be lowered enough to fit some rectangular ducting so I
could fit two grills one over the WC pan and over the shower. Is this
gilding a lily or will this improve niff and vapour extraction? If
viable would I be better reducing down from 125mm ducting to 100mm
ducting to connect the two grills?

Finally which is better to fit a back flow restrictor immediately after
the fan or use a flapped wall outlet? The distance from the fan position
will be about 6m to the wall outlet.

I ended up with a flap just after the fan to prevent reverse flow when the
fan was off.

I think that this was because the run to the external vent was quite long
and it needs a bit of puff to open those external flaps.

One result is that on very windy days you hear the occasional flap noise
from the ceiling (or under the floor depending where you are) as the flap
blows shut.

With the twin vents I used the same size of pipe all the way because the
fans will shift quite a volume of air.

Cheers


Dave R


--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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Tricky Dicky wrote:

use a flapped wall outlet?

Do you enjoy being kept awake on blustery nights?

I even find the flaps on on my (non-adjoined) neighbour's house mildly
annoying at times ...