"DICEGEORGE" wrote in message
...
Over where the oven will be in the bungalow is a wall vent.
I'm upgrading the kitchen with either a gas or electric hob-
gas is more popular but makes more water vapour.
Its to be rented out for a few years

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

What about a humidity controlled fan like this
Humidistat Axial Extractor Fan
http://cpc.farnell.com/xpelair/dx100...tat/dp/HG00770

but the [Difference between kitchen and bathroom fan? ]
thread at https://groups.google.com/forum/#!to...-y/jlHrwW6bxWA
suggests a bathroom fan might be too noisy.

Plasterers are due in a week, so it'd be best to sort this out before
then.

Would it need a separate elec supply,
or is it ok to spur it off the cooker power?

You will need let air in if you're going to extract it.
Watch out for any fire/stoves, you may get combustion gases sucked back down
the chimney.

Over where the oven will be in the bungalow is a wall vent.
I'm upgrading the kitchen with either a gas or electric hob-
gas is more popular but makes more water vapour.
Its to be rented out for a few years

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

What about a humidity controlled fan like this
Humidistat Axial Extractor Fan
http://cpc.farnell.com/xpelair/dx100...tat/dp/HG00770

but the [Difference between kitchen and bathroom fan? ]
thread at https://groups.google.com/forum/#!to...-y/jlHrwW6bxWA
suggests a bathroom fan might be too noisy.

Plasterers are due in a week, so it'd be best to sort this out before then.

Would it need a separate elec supply,
or is it ok to spur it off the cooker power?

On Sunday, 8 March 2015 13:29:56 UTC, DICEGEORGE wrote:
Over where the oven will be in the bungalow is a wall vent.
I'm upgrading the kitchen with either a gas or electric hob-
gas is more popular but makes more water vapour.
Its to be rented out for a few years

in which case an electric hob (it's one appliance fewer to pay a gas safety check on) with the extractor fan wired with an unswitched fused spur into the load terminals on the cooker switch, so that the cooker cannot be used without the fan running. This will help cut steam levels down despite the worst habits of tenants.

If you can't get a hood over the cooker then consider a 6" fan as a minimum and if it's a big room get a 12".

Owain

On Sun, 8 Mar 2015 06:29:54 -0700 (PDT), DICEGEORGE wrote:

Over where the oven will be in the bungalow is a wall vent.
I'm upgrading the kitchen with either a gas or electric hob-
gas is more popular but makes more water vapour.
Its to be rented out for a few years

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

What about a humidity controlled fan like this
Humidistat Axial Extractor Fan
http://cpc.farnell.com/xpelair/dx100...tat/dp/HG00770

but the [Difference between kitchen and bathroom fan? ]
thread at https://groups.google.com/forum/#!to...-y/jlHrwW6bxWA
suggests a bathroom fan might be too noisy.

That's pretty well the same as I fitted to my small bathroom last year.
I would say that it lacks the capacity and pressure to cope with a kitchen
- after a quick shower mine needs about 20 min. or so to clear the
condensation.
I would have thought that a kitchen fan would be noisier - is that what you
meant? It seemed to be that way when I was looking at fans.

Plasterers are due in a week, so it'd be best to sort this out before then.

Would it need a separate elec supply,
or is it ok to spur it off the cooker power?

If it's wired into the load side it'll be on all the while the cooker's
switch is.
--
Peter.
The gods will stay away
whilst religions hold sway

In message , at
06:29:54 on Sun, 8 Mar 2015, DICEGEORGE remarked:

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

I've got a "modern type of hood" and the flue points upwards. As
that's not very helpful for most kitchen designs[1], I expect they
anticipate users installing a right-angle bend either through the
wall or sideways along the wall near the ceiling.

[1] I suppose you might get away with it on new build, in the void
between the ceiling and the floor above, if building regs
allow that it leads towards an external wall.
--
Roland Perry

In message , at 16:13:21 on Sun, 8
Mar 2015, Roland Perry remarked:
The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

I've got a "modern type of hood" and the flue points upwards. As
that's not very helpful for most kitchen designs[1], I expect they
anticipate users installing a right-angle bend either through the
wall or sideways along the wall near the ceiling.

[1] I suppose you might get away with it on new build, in the void
between the ceiling and the floor above, if building regs
allow

and

that it leads towards an external wall.

--
Roland Perry

On Sunday, March 8, 2015 at 4:20:50 PM UTC, Roland Perry wrote:
In message , at
06:29:54 on Sun, 8 Mar 2015, DICEGEORGE remarked:

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

I've got a "modern type of hood" and the flue points upwards. As
that's not very helpful for most kitchen designs[1], I expect they
anticipate users installing a right-angle bend either through the
wall or sideways along the wall near the ceiling.

[1] I suppose you might get away with it on new build, in the void
between the ceiling and the floor above, if building regs
allow that it leads towards an external wall.
--
Roland Perry

its a bungalow and I don't want to cut into the roof

In message , at
11:44:21 on Sun, 8 Mar 2015, DICEGEORGE remarked:
The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

I've got a "modern type of hood" and the flue points upwards. As
that's not very helpful for most kitchen designs[1], I expect they
anticipate users installing a right-angle bend either through the
wall or sideways along the wall near the ceiling.

[1] I suppose you might get away with it on new build, in the void
between the ceiling and the floor above, if building regs
allow that it leads towards an external wall.

its a bungalow and I don't want to cut into the roof

I wasn't suggesting you needed to. My hood has a vertical flue (only a
few inches long above the centrifugal fan) above which I've put a
right-angle bend through the wall behind the cooker. Alternatively I
could have put a differently-aligned right-angle bend in, and run the
vent along the wall somewhere near the ceiling, and through the wall
that it eventually hit.
--
Roland Perry

On 08/03/2015 18:44, DICEGEORGE wrote:
On Sunday, March 8, 2015 at 4:20:50 PM UTC, Roland Perry wrote:
In message , at
06:29:54 on Sun, 8 Mar 2015, DICEGEORGE remarked:

The existing vent isn't over the centre of the hob,
(its in the corner)
so I cant use a modern type of hood,
unless I knock a new hole in the wall

I've got a "modern type of hood" and the flue points upwards. As
that's not very helpful for most kitchen designs[1], I expect they
anticipate users installing a right-angle bend either through the
wall or sideways along the wall near the ceiling.

[1] I suppose you might get away with it on new build, in the void
between the ceiling and the floor above, if building regs
allow that it leads towards an external wall.
--
Roland Perry

its a bungalow and I don't want to cut into the roof

The pipe from my hood runs above a couple of cupboards before going out
through a wall. The fan in the hood comes on automatically whenever my
induction hob is used.

--
Michael Chare

In message , at
19:04:29 on Sun, 8 Mar 2015, Michael Chare
remarked:
The pipe from my hood runs above a couple of cupboards before going out
through a wall.

That's right - just run a duct from the output of the hood to wherever
the hole [already] is.

The fan in the hood comes on automatically whenever my induction hob is
used.

Mine's entirely manual.
--
Roland Perry