I have a gas hob to be fitted in the worktop of a standard fitted kitchen with laminate worktop. Underneath is a 3-draw cabinet with 60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising vertically behind the unit in the pipe space, a right-angle elbow into the cabinet and copper running just below the worktop for an inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp taper on the hob.

What is the usual procedure to make the connection, since there is no access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below the worktop, so it seems that the pipe would have to be positioned very accurately before the units are fixed in place.

Cheers,
Simon.

sm_jamieson wrote:
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising
vertically behind the unit in the pipe space, a right-angle elbow
into the cabinet and copper running just below the worktop for an
inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp
taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Just use a rubber hose

sm_jamieson explained :
I have a gas hob to be fitted in the worktop of a standard fitted kitchen
with laminate worktop. Underneath is a 3-draw cabinet with 60mm pipe space
behind. The connection from the 22mm supply will be 15mm copper rising
vertically behind the unit in the pipe space, a right-angle elbow into the
cabinet and copper running just below the worktop for an inch or two, then a
15mm x 1/2" iron elbow connecting to male bsp taper on the hob.

What is the usual procedure to make the connection, since there is no access
behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below the
worktop, so it seems that the pipe would have to be positioned very
accurately before the units are fixed in place.

Use a gas plug and socket, with flexible pipe. Mount the socket far
enough away from the hob, to get an easy sweep of the flexi pipe and
ensure there will be no contact between hot hob and pipe once all in
situ.

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

On 22/06/2012 19:45, Phil L wrote:
sm_jamieson wrote:
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising
vertically behind the unit in the pipe space, a right-angle elbow
into the cabinet and copper running just below the worktop for an
inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp
taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Just use a rubber hose


....if the manual for the hob permits it....

--
Toby...
Remove pants to reply

On 22/06/2012 20:04, Harry Bloomfield wrote:
sm_jamieson explained :
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind. The connection from the 22mm supply will be
15mm copper rising vertically behind the unit in the pipe space, a
right-angle elbow into the cabinet and copper running just below the
worktop for an inch or two, then a 15mm x 1/2" iron elbow connecting
to male bsp taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Use a gas plug and socket, with flexible pipe. Mount the socket far
enough away from the hob, to get an easy sweep of the flexi pipe and
ensure there will be no contact between hot hob and pipe once all in situ.


....if the manual for the hob permits it....

--
Toby...
Remove pants to reply

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:
sm_jamieson explained :
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind. The connection from the 22mm supply will be
15mm copper rising vertically behind the unit in the pipe space, a
right-angle elbow into the cabinet and copper running just below the
worktop for an inch or two, then a 15mm x 1/2" iron elbow connecting
to male bsp taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Use a gas plug and socket, with flexible pipe. Mount the socket far
enough away from the hob, to get an easy sweep of the flexi pipe and
ensure there will be no contact between hot hob and pipe once all in situ.


...if the manual for the hob permits it....

The manual says:

The end of the inlet connection point of the gas hob has a 1/2" (20.955 mmm) thread that allows for:
* fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?

Simon.

On Friday, June 22, 2012 7:45:38 PM UTC+1, Phil L wrote:
sm_jamieson wrote:
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising
vertically behind the unit in the pipe space, a right-angle elbow
into the cabinet and copper running just below the worktop for an
inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp
taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Just use a rubber hose

I don't think its allowed on fixed hobs.
Simon.

sm_jamieson wrote in
:

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:
The manual says:

The end of the inlet connection point of the gas hob has a 1/2"
(20.955 mmm) thread that allows for: * fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?


'TracPipe' is a semi rigid flexible metal pipe. (Google that, plenty of
info on it) can be used to connect to fixed appliances.

Although flexible cooker hoses are flexible metal pipes covered in rubber
I would not think that these are refered to.

There must be a means of isolation for the gas to the hob which you seem
to have omitted.

Read up more of the manufactures instructions and gas regulations if you
are thinking of doing it yourself. You must be competent to do this kind
of work.

It would probably be better/safer to get a Gassafe registered person in to
do the gas work.


--- Posted via news://freenews.netfront.net/ - Complaints to ---

On Friday, June 22, 2012 11:16:50 PM UTC+1, Heliotrope Smith wrote:
sm_jamieson wrote in
:

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:
The manual says:

The end of the inlet connection point of the gas hob has a 1/2"
(20.955 mmm) thread that allows for: * fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?


'TracPipe' is a semi rigid flexible metal pipe. (Google that, plenty of
info on it) can be used to connect to fixed appliances.

Although flexible cooker hoses are flexible metal pipes covered in rubber
I would not think that these are refered to.

There must be a means of isolation for the gas to the hob which you seem
to have omitted.

Read up more of the manufactures instructions and gas regulations if you
are thinking of doing it yourself. You must be competent to do this kind
of work.

It would probably be better/safer to get a Gassafe registered person in to
do the gas work.

Ouch that tracpipe is expensive !
I forgot to mention the isolation valve - that will be included and be accesible at the back of the neighbouring cupboard.

My brother in law is gassafe and he will be doing it, so I guess I should ask him how he wants to do it.
It might be possible to leave the cabinet loose so it can be removed when the worktop and hob cutout is in place, but I dont like the leaving the thin strips of worktop behind and in front of the hob unsupported. However I could lower the unit legs to get it back in fairly easily.

Or I could make a cutout in some of the spare worktop and use that to position the pipe, then mark it through onto the main worktop. The should get it in place to a millimetre tolerance.

Simon.

"sm_jamieson" wrote in message
...
On Friday, June 22, 2012 11:16:50 PM UTC+1, Heliotrope Smith wrote:
sm_jamieson wrote in
:

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:
The manual says:

The end of the inlet connection point of the gas hob has a 1/2"
(20.955 mmm) thread that allows for: * fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?


'TracPipe' is a semi rigid flexible metal pipe. (Google that, plenty of
info on it) can be used to connect to fixed appliances.

Although flexible cooker hoses are flexible metal pipes covered in rubber
I would not think that these are refered to.

There must be a means of isolation for the gas to the hob which you seem
to have omitted.

Read up more of the manufactures instructions and gas regulations if you
are thinking of doing it yourself. You must be competent to do this kind
of work.

It would probably be better/safer to get a Gassafe registered person in to
do the gas work.


As an extra, what is the requirement for clips to hold gas pipework these
days - what type and how far apart?

--
MarkBR

On 22/06/2012 23:02, sm_jamieson wrote:
On Friday, June 22, 2012 7:45:38 PM UTC+1, Phil L wrote:
sm_jamieson wrote:
I have a gas hob to be fitted in the worktop of a standard fitted
kitchen with laminate worktop. Underneath is a 3-draw cabinet with
60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising
vertically behind the unit in the pipe space, a right-angle elbow
into the cabinet and copper running just below the worktop for an
inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp
taper on the hob.

What is the usual procedure to make the connection, since there is no
access behind the cabinet when the worktop and hob is being fitted ?

There's only a couple of inches in which to make the connection below
the worktop, so it seems that the pipe would have to be positioned
very accurately before the units are fixed in place.

Just use a rubber hose

I don't think its allowed on fixed hobs.
Simon.

It is if the manufacturer's instructions state that a rubber hose may be
used.

SteveW

In article ,
sm_jamieson writes:
The manual says:

The end of the inlet connection point of the gas hob has a 1/2" (20.955 mmm) thread that allows for:
* fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?

It's the standard flexible cooker hose (for natural gas), usually
with a bayonet cap connector one end and screwed connection the other
end (although screwed both ends also exist). It's actually a metallic
pipe (spiral a bit like a chrome shower hose outer), with a rubber
layer on the inside and outside to make it gas-tight. Hobs usually use
the thinner type, and a full cooker (hob+oven+grill) use the thicker
type.

The reference to "flexible metal pipe" is to rule out the use of
propane gas cylinder hoses (and loads of other unsuitable types
like garden hose pipes;-).

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]

sm_jamieson wrote in
:

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:

The manual says:

The end of the inlet connection point of the gas hob has a 1/2"
(20.955 mmm) thread that allows for: * fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?





--- Posted via news://freenews.netfront.net/ - Complaints to ---

On 22/07/2012 21:33, Heliotrope Smith wrote:
sm_jamieson wrote in
:

On Friday, June 22, 2012 8:37:21 PM UTC+1, Toby wrote:
On 22/06/2012 20:04, Harry Bloomfield wrote:

The manual says:

The end of the inlet connection point of the gas hob has a 1/2"
(20.955 mmm) thread that allows for: * fixed connection
* connection using a flexible metal pipe (L min. 1 m - max. 3m)

Anyone know what this "flexible metal pipe" is ?


Is that a reference to what's known as a cooker hose?

On Jun 22, 7:24*pm, sm_jamieson wrote:
I have a gas hob to be fitted in the worktop of a standard fitted kitchen with laminate worktop. Underneath is a 3-draw cabinet with 60mm pipe space behind.
The connection from the 22mm supply will be 15mm copper rising vertically behind the unit in the pipe space, a right-angle elbow into the cabinet and copper running just below the worktop for an inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp taper on the hob.

What is the usual procedure to make the connection, since there is no access behind the cabinet when the worktop and hob is being fitted ?

Make a cut-out in the cabinet back and take the drawer out when
fitting.

MBQ

On Monday, July 23, 2012 10:01:23 AM UTC+1, Man at B&Q wrote:
On Jun 22, 7:24*pm, sm_jamieson > wrote:
> I have a gas hob to be fitted in the worktop of a standard fitted kitchen with laminate worktop. Underneath is a 3-draw cabinet with 60mm pipe space behind.
> The connection from the 22mm supply will be 15mm copper rising vertically behind the unit in the pipe space, a right-angle elbow into the cabinet and copper running just below the worktop for an inch or two, then a 15mm x 1/2" iron elbow connecting to male bsp taper on the hob.
>
> What is the usual procedure to make the connection, since there is no access behind the cabinet when the worktop and hob is being fitted ?

Make a cut-out in the cabinet back and take the drawer out when
fitting.

MBQ

In the end, the cabinet below the hob has been left loose so the legs can be dropped slightly and the cabinet pulled out. The gas will be connected to the hob with the cabinet well out of the way. I've cut out the top rear of the cabinet where needed to allow space for the gas pipe and the mounting clips. The cabinet can then just be pushed back under and the legs raised.

Cheers,
Simon.