O.K. - I can't locate the screws which held the radiator to the wall
before it was removed and the wall re-plastered.

So I have been trawling through stock to see what I have which might do.

I came across a bag of these
http://www.screwfix.com/p/rawlplug-s...o-steel-screw-
washer-6-3-x-45-x-2-92mm-pk100/41645
and wondered....

They are about the correct size (the slot in the bracket is 7mm) and about
the correct depth.
They are designed to screw into wood.
(O.K. to hold metal sheeting)
The one thing they are not is tapered.
So effectively self tappers with a bolt head, I suppose.

Anyway, clever or foolish?

Cheers

Dave R

--
Windows 8.1 on PCSpecialist box

David wrote:

I can't locate the screws which held the radiator to the wall
before it was removed and the wall re-plastered.

http://screwfix.com/p/screws/41645

They are designed to screw into wood.

No, they're designed to screw into steelwork. What's your wall made of?

A magnet no good for locating the old screws?

On Sun, 14 Dec 2014 12:14:43 +0000, Andy Burns wrote:

David wrote:

I can't locate the screws which held the radiator to the wall before it
was removed and the wall re-plastered.

http://screwfix.com/p/screws/41645

They are designed to screw into wood.

No, they're designed to screw into steelwork. What's your wall made of?

Well, I think they are designed to screw through steel work into wood - at
least this is the application I have used them (or at least shorter
versions) for. Screwing a steel roof down onto wooden rafters.


A magnet no good for locating the old screws?

Single brick internal wall, 1930s semi.
It was made very clear to me by the plasterer that he wouldn't plaster a
wall with the screws still in the fixings.
Said he had this argument with plumbers all the time :-)
So no screws to locate (although it is an interesting thought to leave
something small but magnetic in the old plug as a guide) - the screws were
removed. I've found the big ones which hold the TV bracket to the chimney
breast but I can't find the radiator ones.
So I need to drill new holes in roughly the same area without hitting the
old holes (unless dead on) or a mortar gap.

Fortunately, I've just found (one of) my ancient "I'm sure they will come
in useful sometime" cache(s) of bits and bobs left over from plumbing jobs.
Turns out there are a couple of radiator fitting kits, including even a
little plastic bleed tool.

So I am good to start marking up and drilling.


Cheers


Dave R


--
Windows 8.1 on PCSpecialist box

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

--
From the Sofa of Brian Gaff Reply address is active
"David" wrote in message
...
On Sun, 14 Dec 2014 12:14:43 +0000, Andy Burns wrote:

David wrote:

I can't locate the screws which held the radiator to the wall before it
was removed and the wall re-plastered.

http://screwfix.com/p/screws/41645

They are designed to screw into wood.

No, they're designed to screw into steelwork. What's your wall made of?

Well, I think they are designed to screw through steel work into wood - at
least this is the application I have used them (or at least shorter
versions) for. Screwing a steel roof down onto wooden rafters.


A magnet no good for locating the old screws?

Single brick internal wall, 1930s semi.
It was made very clear to me by the plasterer that he wouldn't plaster a
wall with the screws still in the fixings.
Said he had this argument with plumbers all the time :-)
So no screws to locate (although it is an interesting thought to leave
something small but magnetic in the old plug as a guide) - the screws were
removed. I've found the big ones which hold the TV bracket to the chimney
breast but I can't find the radiator ones.
So I need to drill new holes in roughly the same area without hitting the
old holes (unless dead on) or a mortar gap.

Fortunately, I've just found (one of) my ancient "I'm sure they will come
in useful sometime" cache(s) of bits and bobs left over from plumbing
jobs.
Turns out there are a couple of radiator fitting kits, including even a
little plastic bleed tool.

So I am good to start marking up and drilling.


Cheers


Dave R


--
Windows 8.1 on PCSpecialist box

On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

So in most cases probably not.

Cheers

Dave R



--
Windows 8.1 on PCSpecialist box

David wrote:

Andy Burns wrote:

they're designed to screw into steelwork. What's your wall made of?

Well, I think they are designed to screw through steel work into wood

Nope, they're designed to screw through steel sheets into structural
steel (i.e. girders)

http://www.rawlplug.co.uk/en/products/972/999/1057/2117#tab-materials

On Sun, 14 Dec 2014 13:09:30 +0000, Andy Burns wrote:

David wrote:

Andy Burns wrote:

they're designed to screw into steelwork. What's your wall made of?

Well, I think they are designed to screw through steel work into wood

Nope, they're designed to screw through steel sheets into structural
steel (i.e. girders)

http://www.rawlplug.co.uk/en/products/972/999/1057/2117#tab-materials

Interesting :-)

Cheers

Dave R



--
Windows 8.1 on PCSpecialist box

On 14/12/2014 13:03, David wrote:
On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

Why? The alternative is to encourage cold air falling down from a window.

On Sun, 14 Dec 2014 16:09:02 +0000, Fredxxx wrote:

On 14/12/2014 13:03, David wrote:
On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside
wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

Why? The alternative is to encourage cold air falling down from a
window.

IIRC the loss of heat through the wall was more of a problem than the
circulating draught from the window area.

Then again opinions may have changed yet again.

Then again in the lounge the window is a crescent shaped bay so a radiator
would be a bit of a bugger in there anyway.


Cheers

Dave R


--
Windows 8.1 on PCSpecialist box

"David" wrote in message
...
On Sun, 14 Dec 2014 16:09:02 +0000, Fredxxx wrote:

On 14/12/2014 13:03, David wrote:
On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside
wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

Why? The alternative is to encourage cold air falling down from a
window.

IIRC the loss of heat through the wall was more of a problem than the
circulating draught from the window area.

Then again opinions may have changed yet again.

And that may be due to the change to much
better insulated walls and double glazing etc.

Then again in the lounge the window is a crescent shaped bay
so a radiator would be a bit of a bugger in there anyway.

On Sunday, December 14, 2014 12:03:43 PM UTC, David wrote:
O.K. - I can't locate the screws which held the radiator to the wall
before it was removed and the wall re-plastered.

So I have been trawling through stock to see what I have which might do.

I came across a bag of these
http://www.screwfix.com/p/rawlplug-s...o-steel-screw-
washer-6-3-x-45-x-2-92mm-pk100/41645
and wondered....

They are about the correct size (the slot in the bracket is 7mm) and about
the correct depth.
They are designed to screw into wood.
(O.K. to hold metal sheeting)
The one thing they are not is tapered.
So effectively self tappers with a bolt head, I suppose.

Anyway, clever or foolish?

Cheers

Dave R

They're not designed for the job, but might work ok. Put one in and see if they're good & firm. Angle grind the tip off so its pointed & it would be much better.


NT

David wrote:
O.K. - I can't locate the screws which held the radiator to the wall
before it was removed and the wall re-plastered.

So I have been trawling through stock to see what I have which might
do.

I came across a bag of these
http://www.screwfix.com/p/rawlplug-s...o-steel-screw-
washer-6-3-x-45-x-2-92mm-pk100/41645
and wondered....

They are about the correct size (the slot in the bracket is 7mm) and
about the correct depth.
They are designed to screw into wood.
(O.K. to hold metal sheeting)
The one thing they are not is tapered.
So effectively self tappers with a bolt head, I suppose.

Anyway, clever or foolish?

Cheers

Dave R

Rawlplugs and 2" No 10 roundhead or countersunk head steel woodscrews. If
the render and plaster isn't too thick and the wall is brick, then you could
get away with using shorter No 10 screws.

Cash

On Sunday, December 14, 2014 6:16:13 PM UTC, David wrote:
On Sun, 14 Dec 2014 16:09:02 +0000, Fredxxx wrote:

On 14/12/2014 13:03, David wrote:
On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside
wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

Why? The alternative is to encourage cold air falling down from a
window.

IIRC the loss of heat through the wall was more of a problem than the
circulating draught from the window area.

Then again opinions may have changed yet again.

Then again in the lounge the window is a crescent shaped bay so a radiator
would be a bit of a bugger in there anyway.

Never used to be any problem with smoothly curved radiators in bays. Mine and my mother's houses (1930s) have this. I have noticed in some newer houses a horrible solution with the radiator "folded" into several straight sections. Has someone lost a vital machine ?
Simon.

On Sunday, December 14, 2014 12:03:43 PM UTC, David wrote:

O.K. - I can't locate the screws which held the radiator to the wall
before it was removed and the wall re-plastered.


Can't you (and a friend) hold the radiator back where it used to be, guided by the pipework, and mark the positions where the holes should be?

Robert

In article ,
David writes:
On Sun, 14 Dec 2014 16:09:02 +0000, Fredxxx wrote:

On 14/12/2014 13:03, David wrote:
On Sun, 14 Dec 2014 12:59:01 +0000, Brian Gaff wrote:

By the way, does that silver stuff you can get for behind radiators
actually do any good, or is it just snake oil?
Brian

I assume it would only do any good for a radiator on a 'cold' outside
wall.

AFAIK the current recommendation is to fit radiators on internal walls,
not under windows as used to be recommended.

Why? The alternative is to encourage cold air falling down from a
window.

IIRC the loss of heat through the wall was more of a problem than the
circulating draught from the window area.

Er - loss of heat is the only reason you have radiators in the first place.
By placing the radiators in what is otherwise the coldest part of the room,
you avoid the temperature differential which you will get by placing them
somewhere else. That temperature differential can lead to condensation
formation in the worst cases, and to a significant cold draft crossing the
room if you put the radiators on the walls opposite the coldest parts of
the room.

Then again opinions may have changed yet again.

Curtains fouling the radiators is something to consider.

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