For many years I've only checked the 'readings' on my quarterly Gas Bill and
not bothered to perform the calculations leading to the money bill.

However having recently completed a change of plumbing circuitry, I've
become an 'anorak' about gas consumption and I've been reading the meter
everyday.

My meter registers consumption in cubic feet. British Gas charges in KwH.
There is a 'conversion carried out to convert cubic feet (consumed) into
cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and website;
the cubic feet consumed is _multiplied_ by 2.38 (the website states that his
step my be omitted if the meter registers in m^3) then transmogrifies into
KilowattHours via a series of multiply by the number you first thought of
.....

As far as I can see: British Gas are stating that one cubic foot equates to
2.38 cubic metres! I've asked British Gas to confirm this but all I've got
are flunky's responses that the 'equation' leads to a correct calculation of
my bill.

Given that one cubic foot is 12 in x 12 in x 12 in and that one cubic metre
is 39.37 in x 39.37 in x 39.37 in, I can't reconcile where the 'multiply by
2.83' statement originates.

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by 2.83?*

Any body with an explanation?

--

Brian

*There are valid reasons not to divide something in software. Unless steps
are taken to validate the divisor a divide operation _might_ lead to a
'Divide by Zero - illegal operation' and cause a run to halt. It's much
safer to multiply by a reciprocal ; e.g. don't divide by four, rather
multiply by. 0.25.
Guess what the 'reciprocal' in this case [12^3 / 39.37^3] is ... how many
decimal places?

--

Brian

On Sun, 24 Sep 2006 21:12:12 UTC, "Brian Sharrock"
wrote:

My meter registers consumption in cubic feet. British Gas charges in KwH.
There is a 'conversion carried out to convert cubic feet (consumed) into
cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and website;
the cubic feet consumed is _multiplied_ by 2.38 (the website states that his
step my be omitted if the meter registers in m^3) then transmogrifies into
KilowattHours via a series of multiply by the number you first thought of
....

As far as I can see: British Gas are stating that one cubic foot equates to
2.38 cubic metres! I've asked British Gas to confirm this but all I've got
are flunky's responses that the 'equation' leads to a correct calculation of
my bill.

100 cubic feet is 2.83 cubic metres. I'd bet that the meter registers in
hundreds.

--
The information contained in this post is copyright the
poster, and specifically may not be published in, or used by
Avenue Supplies, http://avenuesupplies.co.uk

"Brian Sharrock" wrote in message
...
For many years I've only checked the 'readings' on my quarterly Gas Bill
and not bothered to perform the calculations leading to the money bill.

However having recently completed a change of plumbing circuitry, I've
become an 'anorak' about gas consumption and I've been reading the meter
everyday.

My meter registers consumption in cubic feet. British Gas charges in KwH.
There is a 'conversion carried out to convert cubic feet (consumed) into
cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and website;
the cubic feet consumed is _multiplied_ by 2.38 (the website states that
his step my be omitted if the meter registers in m^3) then transmogrifies
into KilowattHours via a series of multiply by the number you first
thought of ....

As far as I can see: British Gas are stating that one cubic foot equates
to 2.38 cubic metres! I've asked British Gas to confirm this but all I've
got are flunky's responses that the 'equation' leads to a correct
calculation of my bill.

Given that one cubic foot is 12 in x 12 in x 12 in and that one cubic
metre is 39.37 in x 39.37 in x 39.37 in, I can't reconcile where the
'multiply by 2.83' statement originates.

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by 2.83?*

Any body with an explanation?

--

Brian

*There are valid reasons not to divide something in software. Unless steps
are taken to validate the divisor a divide operation _might_ lead to a
'Divide by Zero - illegal operation' and cause a run to halt. It's much
safer to multiply by a reciprocal ; e.g. don't divide by four, rather
multiply by. 0.25.
Guess what the 'reciprocal' in this case [12^3 / 39.37^3] is ... how many
decimal places?

1 cubic foot =0.02831685 cubic metres

Brian Sharrock wrote:

My meter registers consumption in cubic feet. British Gas charges in KwH.

Your meter probably reads in 100s of cubic feet which may go some way to
explain the difference.

The conversion:

http://www.google.com/search?num=50&...rs&btnG=Search


There is a 'conversion carried out to convert cubic feet (consumed) into
cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and website;
the cubic feet consumed is _multiplied_ by 2.38 (the website states that his

2.83 sounds more like it...

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by 2.83?*

Their explanation seems to be wanting somewhat! For 100s of cubic feet
to m^3 however, the numbers look ok.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

Brian Sharrock wrote:
For many years I've only checked the 'readings' on my quarterly Gas
Bill and not bothered to perform the calculations leading to the
money bill.
However having recently completed a change of plumbing circuitry, I've
become an 'anorak' about gas consumption and I've been reading the
meter everyday.

My meter registers consumption in cubic feet. British Gas charges in
KwH. There is a 'conversion carried out to convert cubic feet
(consumed) into cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and
website; the cubic feet consumed is _multiplied_ by 2.38 (the website
states that his step my be omitted if the meter registers in m^3)
then transmogrifies into KilowattHours via a series of multiply by
the number you first thought of ....

As far as I can see: British Gas are stating that one cubic foot
equates to 2.38 cubic metres! I've asked British Gas to confirm this but
all
I've got are flunky's responses that the 'equation' leads to a
correct calculation of my bill.

Given that one cubic foot is 12 in x 12 in x 12 in and that one cubic
metre is 39.37 in x 39.37 in x 39.37 in, I can't reconcile where the
'multiply by 2.83' statement originates.

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by
2.83?*
Any body with an explanation?


A cubic foot is 0.028316849999999997 of a cubic metre.
There are 35.31466 cu feet in a cubic metre.

35.31466 X 0.028316849999999997 = 0.9999999993002099989405602

or 35.31 X 2.83 = 99.9273

Later on in the equation it must divide by 100

In message , Brian Sharrock
wrote


Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by 2.83?*

The gas meter reading is in units of 100 cubic feet. You don't read the
last two dials/figures when submitting a reading.

100 cubic feet = 2.831685 cubic meters.

http://www.house.co.uk/cgi-bin/house...PopUpEditorial.
jsp?BV_SessionID=HHHH1402320481.1159134046HHHH&BV_ EngineID=ccccaddilmfhhj
kcefecfngdfhidfmi.0&_txtEdKey=meter_reading_gas_po pup&_txtPrintable=false
&_linkKey=meter_reading_gas_popup&_strType=INLI NE


--
Alan
news2006 {at} amac {dot} f2s {dot} com

In message , Phil L
writes
Brian Sharrock wrote:
For many years I've only checked the 'readings' on my quarterly Gas
Bill and not bothered to perform the calculations leading to the
money bill.
However having recently completed a change of plumbing circuitry, I've
become an 'anorak' about gas consumption and I've been reading the
meter everyday.

My meter registers consumption in cubic feet. British Gas charges in
KwH. There is a 'conversion carried out to convert cubic feet
(consumed) into cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and
website; the cubic feet consumed is _multiplied_ by 2.38 (the website
states that his step my be omitted if the meter registers in m^3)
then transmogrifies into KilowattHours via a series of multiply by
the number you first thought of ....

As far as I can see: British Gas are stating that one cubic foot
equates to 2.38 cubic metres! I've asked British Gas to confirm this but
all
I've got are flunky's responses that the 'equation' leads to a
correct calculation of my bill.

Given that one cubic foot is 12 in x 12 in x 12 in and that one cubic
metre is 39.37 in x 39.37 in x 39.37 in, I can't reconcile where the
'multiply by 2.83' statement originates.

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by
2.83?*
Any body with an explanation?


A cubic foot is 0.028316849999999997 of a cubic metre.
There are 35.31466 cu feet in a cubic metre.

35.31466 X 0.028316849999999997 = 0.9999999993002099989405602

or 35.31 X 2.83 = 99.9273

Later on in the equation it must divide by 100

What IS the point of point of so many decimal places

.... other than making you look a bit silly

--
geoff

Phil L wrote:
snip
A cubic foot is 0.028316849999999997 of a cubic metre.

According to Google, 1 cubic foot = 0.0283168466 cubic meters.
Which is correct?

raden wrote:


What IS the point of point of so many decimal places
... other than making you look a bit silly

Especially in view of the fact that BG truncate the conversion factor to
2 decimal places (100 ft^3 = 2.83 m^3) and the meter's only accurate
to about ±2% in the first place.

--
Andy

raden wrote:
In message , Phil L
writes
Brian Sharrock wrote:
For many years I've only checked the 'readings' on my quarterly Gas
Bill and not bothered to perform the calculations leading to the
money bill.
However having recently completed a change of plumbing circuitry,
I've become an 'anorak' about gas consumption and I've been reading
the meter everyday.

My meter registers consumption in cubic feet. British Gas charges in
KwH. There is a 'conversion carried out to convert cubic feet
(consumed) into cubic meters thence into KilowattHours.

According to British Gas's helpful explanation on their bills and
website; the cubic feet consumed is _multiplied_ by 2.38 (the
website states that his step my be omitted if the meter registers
in m^3) then transmogrifies into KilowattHours via a series of multiply
by
the number you first thought of ....

As far as I can see: British Gas are stating that one cubic foot
equates to 2.38 cubic metres! I've asked British Gas to confirm
this but all
I've got are flunky's responses that the 'equation' leads to a
correct calculation of my bill.

Given that one cubic foot is 12 in x 12 in x 12 in and that one
cubic metre is 39.37 in x 39.37 in x 39.37 in, I can't reconcile
where the 'multiply by 2.83' statement originates.

Surely, a cubic-foot is smaller than a cubic-metre! Why multiply by
2.83?*
Any body with an explanation?


A cubic foot is 0.028316849999999997 of a cubic metre.
There are 35.31466 cu feet in a cubic metre.

35.31466 X 0.028316849999999997 = 0.9999999993002099989405602

or 35.31 X 2.83 = 99.9273

Later on in the equation it must divide by 100

What IS the point of point of so many decimal places

... other than making you look a bit silly

Or maybe the site I cut and pasted it from...what was the point of your post
to this thread? - did it serve *any* purpose at all?

Grumps wrote:
Phil L wrote:
snip
A cubic foot is 0.028316849999999997 of a cubic metre.

According to Google, 1 cubic foot = 0.0283168466 cubic meters.
Which is correct?

0.028316849999999997

I use a British site, to avoid misunderstandings - Wiki says it's
0.028316846592 too, but this is ammended at will by members of the public
http://www.gordonengland.co.uk/conversion/volume.htm

There's dozens of calculators on that site and I've been using it for years,
it's never let me down yet when ordering stuff.

"Andy Wade" wrote in message
...
raden wrote:


What IS the point of point of so many decimal places
... other than making you look a bit silly

Especially in view of the fact that BG truncate the conversion factor to 2
decimal places (100 ft^3 = 2.83 m^3) and the meter's only accurate to
about ±2% in the first place.

--
Andy


Jumping in again; I've studied my bills and their counterpart on the web.
BG state that cons* = consumption in cubic feet. They cite my average cons*
as approx 2 per day- the only figure quoted is four digits - not the two
'smaller red' digits
So; somewhere BG are inconsistent - they don't quote cubic feet but
_hundreds of cubic feet_.


--

Brian

"Brian Sharrock" wrote in message
...

"Andy Wade" wrote in message
...
raden wrote:


What IS the point of point of so many decimal places
... other than making you look a bit silly

Especially in view of the fact that BG truncate the conversion factor to
2 decimal places (100 ft^3 = 2.83 m^3) and the meter's only accurate to
about ±2% in the first place.

--
Andy


Jumping in again; I've studied my bills and their counterpart on the web.
BG state that cons* = consumption in cubic feet. They cite my average
cons* as approx 2 per day- the only figure quoted is four digits - not the
two 'smaller red' digits
So; somewhere BG are inconsistent - they don't quote cubic feet but
_hundreds of cubic feet_.


All imperial meters measure in 100's of cubic feet and often have a couple
of dummy "00" figures after the ones you read on the meter to indicate this.
Sloppy practice and the fact that the meters are or were labelled "Cubic
Feet" (as they included the dummy "00" figures) but the dummy figures are
ignored on readings has lead to the confusion (a bit like "Calories"
actually being kCals). 100 cubic feet = 2.83 cubic metres so the calculation
is correct.

There is another thread here where the customer was bing charged as if they
had an imperial meter when it was, in fact, metric and was refunded £750 (as
I recall) so it's worth checking that if your meter is metric!


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not)

Phil L wrote:

Grumps wrote:

Phil L wrote:
snip

A cubic foot is 0.028316849999999997 of a cubic metre.

According to Google, 1 cubic foot = 0.0283168466 cubic meters.
Which is correct?


0.028316849999999997

I make it 0.028,316,846,592 /exactly/.

Start with 1 in. = 0.0254 m exactly, by definition.

Multiply by 12, so 1 ft. = 0.3048 m exactly.

Multiply the cube out longhand (ages since I've done that).

3048 * 3048 * 3048 = 28,316,846,592

Therefore 1 ft^3 = 0.028,316,846,592 m^2.

QED.

--
Andy

"Bob Mannix" wrote in message
...

"Brian Sharrock" wrote in message
...

"Andy Wade" wrote in message
...
raden wrote:


What IS the point of point of so many decimal places
... other than making you look a bit silly

Especially in view of the fact that BG truncate the conversion factor to
2 decimal places (100 ft^3 = 2.83 m^3) and the meter's only accurate to
about ±2% in the first place.

--
Andy


Jumping in again; I've studied my bills and their counterpart on the web.
BG state that cons* = consumption in cubic feet. They cite my average
cons* as approx 2 per day- the only figure quoted is four digits - not
the two 'smaller red' digits
So; somewhere BG are inconsistent - they don't quote cubic feet but
_hundreds of cubic feet_.


All imperial meters measure in 100's of cubic feet and often have a couple
of dummy "00" figures after the ones you read on the meter to indicate
this.

"My" meter - A Schlumberger R5 - is marked ft^3: it displays four white
digits and two smaller red digits with a analogue pointer marked with 0 at
the top and 0.5 at the bottom.

Sloppy practice and the fact that the meters are or were labelled "Cubic
Feet" (as they included the dummy "00" figures) but the dummy figures are
ignored on readings has lead to the confusion (a bit like "Calories"
actually being kCals). 100 cubic feet = 2.83 cubic metres so the
calculation is correct.


It's really sloppy practise to declare that the cnsumption is in cubic feet
when it's actually Hundred Cubic foot !

There is another thread here where the customer was bing charged as if
they had an imperial meter when it was, in fact, metric and was refunded
£750 (as I recall) so it's worth checking that if your meter is metric!

No, the meter installed, yonks ago, is definitely registering cubic feet.


--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not)


--

Brian