Extractor fan through a window?

[Mike Halmarack]

Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

[N_Cook]

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

Yes but don't cut the glass yourself, drop into a glass shop and pay
someone to come out and do it.
Looks so simple, a glass cutter on a suction point compass, score the
glass and a bit of tapping and voila, ***only*** a minute-long job

[N_Cook]

Post by N_Cook

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

Yes but don't cut the glass yourself, drop into a glass shop and pay
someone to come out and do it.
Looks so simple, a glass cutter on a suction point compass, score the
glass and a bit of tapping and voila, ***only*** a minute-long job

Sorry just noticed "double glazed" , don't know about that

[Theo]

Post by N_Cook

Post by N_Cook

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

Yes but don't cut the glass yourself, drop into a glass shop and pay
someone to come out and do it.
Looks so simple, a glass cutter on a suction point compass, score the
glass and a bit of tapping and voila, ***only*** a minute-long job

Sorry just noticed "double glazed" , don't know about that

It's possibly toughened, which would make it very difficult to cut. Look
into getting a new sealed unit with the vent included.

It's the same problem as getting a cat flat in a sealed unit, and some
online suppliers support that:
https://www.sealedunitsonline.co.uk/order-glass/Cat-Dog-Pet-Flaps-in-Glass.aspx

and ask your local glazing firm who can probably help too.

Theo

[Mike Halmarack]

On 30 Oct 2024 18:17:15 +0000 (GMT), Theo

Post by Theo

Post by N_Cook

Post by N_Cook

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

Yes but don't cut the glass yourself, drop into a glass shop and pay
someone to come out and do it.
Looks so simple, a glass cutter on a suction point compass, score the
glass and a bit of tapping and voila, ***only*** a minute-long job

Sorry just noticed "double glazed" , don't know about that

It's possibly toughened, which would make it very difficult to cut. Look
into getting a new sealed unit with the vent included.
It's the same problem as getting a cat flat in a sealed unit, and some
https://www.sealedunitsonline.co.uk/order-glass/Cat-Dog-Pet-Flaps-in-Glass.aspx
and ask your local glazing firm who can probably help too.
Theo

[Tricky Dicky]

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

You should be able to do that but it will no longer be a sealed unit and
how much functionality you lose will be determined by the size of the
glass. If is a small unit in a much larger window then it will have little
effect on the overall window performance. Since you will have to take out
the unit to perform the opening, I would investigate how much it costs
having a new sealed unit made up.
,

[alan_m]

Post by Tricky Dicky

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

You should be able to do that but it will no longer be a sealed unit and
how much functionality you lose will be determined by the size of the
glass. If is a small unit in a much larger window then it will have little
effect on the overall window performance. Since you will have to take out
the unit to perform the opening, I would investigate how much it costs
having a new sealed unit made up.

Without it being sealed won't it just do the same failed DG unit that
gets condensation between the two glass panes?

[Jeff Layman]

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

You also need to consider the security aspects of doing it. The ducting
is not exactly strong and could be pushed aside fairly easily. Window
keys are not known for having good security, and IME it seems that a
small selection of keys open lots of different window locks.

[N_Cook]

Post by Jeff Layman

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

You also need to consider the security aspects of doing it. The ducting
is not exactly strong and could be pushed aside fairly easily. Window
keys are not known for having good security, and IME it seems that a
small selection of keys open lots of different window locks.

I thought most such fans were always live, so forcing open the rain
cover would start them off.
Another consideration is that the glass can act as a sounding board
making the fan noise much louder, for anyone concerned about excessive
noises.

[GB]

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

If it's a sliding window, you could slide it open a bit and fit a bit of
plywood into the gap. It's then a simple job to make a hole in the
plywood for the fan.

[Peter Johnson]

On Wed, 30 Oct 2024 15:57:14 +0000, Mike Halmarack

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

I inherited a kitchen d/g window with an integral fan and I might as
well have just had a hole in the window. The fan was really filthy as
well, and couldn't be cleaned. When another panel required replacing I
got the fan window panel replaced as well. Then later, when I had the
kitchen done, the fitter connected the over-oven extractor to a hole
in the wall.

[The Natural Philosopher]

Post by Peter Johnson
On Wed, 30 Oct 2024 15:57:14 +0000, Mike Halmarack

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

I inherited a kitchen d/g window with an integral fan and I might as
well have just had a hole in the window. The fan was really filthy as
well, and couldn't be cleaned. When another panel required replacing I
got the fan window panel replaced as well. Then later, when I had the
kitchen done, the fitter connected the over-oven extractor to a hole
in the wall.

Fans are terrible heat leakers. Even with shutters.
I have found mine OK to clean though

[Mike Halmarack]

On Wed, 30 Oct 2024 15:57:14 +0000, Mike Halmarack

Post by Mike Halmarack
Is it possible to fit an extractor fan into the glass of an already
fitted double glazed window?
This rather than going through a cavity wall

[Mike Halmarack]

oops! my Forte Agent news reader is going wonky again, with lots of
help from me.

[Mike Halmarack]

Thanks,
I'm pretty well put off going through the window.
There's a 5 inch gap above the fitted cupboards, which might be big
enough to take som ducting from the cooker hood which currently relies
on a charcoal filter.