On Wed, 01 Mar 2006 15:38:27 GMT, "Jay"
wrote:

Hi,

I have had ongoing problems with my gas usage. I thought my old system was
inefficient so I had a new Worcester Bosch 28i combi boiler fitted several
weeks ago, however it seems that I am still gobbling gas like it's going out
of fashion.

I had BG out to reset my meter as I am on a prepay meter and it was on the
wrong settings, but it still is eating gas. I put £10 credit in yesterday
and it has already used £5, so at this rate I am spending £150 a month which
is nuts.

I know that there are lots of factors such as insulation etc etc but I only
have a two bedroom semi and it has double glazing and loft insulation.

Firstly I need to know if I am getting ripped off by BG i.e. is my meter
metering the gas correctly (BG cannot help me on this so far as they have no
records of my payments!)

So as a starting point can someone work out for me if firstly it is even
possible for a 28i to burn that amount of gas in a 24 hour period? It's not
like it is even on full! The boiler clicks on and off so it certainly is not
burning all the time, but if it were burning all the time at full blast,
what would the consumption of a 28i be in a day? And what would that cost?

I know it can be worked out but I wouldn't know where to start :-)

Any help gratefully received,

Jason


The startting point is to read the meter at the start and end of 24hrs
and provide the figures. That way it is possible to calculate
whether the meter is giving impossible figures.

Secondly, which model are you talking about? Is it the condensing
Greenstar 28i or the conventional Junior or??

Thirdly, measure what the gas consumption is later tonight when it
gets colder by reading the meter at hourly intervals without the hot
water being used. This will give you a rough idea of gas use for CH
if you multiply by the number of hours that the CH is on. You can
then subtract that from the day's total to get an idea of what is used
for CH.

If you look on the web site of your gas supplier, you should be able
to find a figure to convert cubic metres of gas used to kWh and then
relate that to the cost. have a look at their tariffs and you should
be able to work out what is happening.

Also from the kWh figures you can work out whether it is likely to be
correct for the boiler. Go to the Worcester Bosch site and installer
section. Find the boiler and then the intallation manual. It will
give you the maximum input rate for the boiler in kWh and cu.m/hr of
gas.


--

..andy