Quick Calculator needed

M3D3

I'd like to monitor my gas expenditure day by day (after changing radiator settings,clock settings) to get and idea of what costs least, but I then have to multiply units by calorific value and convert to Kw/h. Isn't there a quick calculator somewhere on the internet?

Cardew

Welcome to the forum.


If you have a metric gas meter(cubic metres) then each gas unit is approx. 11.2kWh.


If you have an old Imperial meter(cubic feet*) then each gas unit is approx. 32kWh.






The calorific value can alter slightly, but 11.2kWh or 32kWh are close enough.


* A gas unit is 100 cubic feet.

matelodave

Set up your own spreadsheet, or you could try iMeasure (http://www.imeasure.org.uk/ ). A free web based service which allows you to input your meter readings on a weekly basis and will allow you monitor your energy consumption and even help you tweak your heating to optimise it.

macman

http://www.energylinx.co.uk/gas_meter_conversion.html
Job done.

Nada666

Or if you are taking meter readings day by day then work out what one or a tenth of a unit costs.

EG, metric meter at 4.5p is 50p per unit (more or less) (11.2 x 4.5p)
imperial meter is £1.44. Call it £3 for two units or each tenth is a seventh of a pound.

But if changing settings then the most important reading is the meter reads in meter units - that is what you use day by day. I would concentrate on monitoring the meter readings as that is primarily your source.

victor2

M3D3 wrote: »

I'd like to monitor my gas expenditure day by day (after changing radiator settings,clock settings) to get and idea of what costs least, but I then have to multiply units by calorific value and convert to Kw/h. Isn't there a quick calculator somewhere on the internet?

Good suggestions above.
As I like to have data to play with (that's my excuse anyway ), I've been recording my electricity, gas meter readings and outside temperatures on a daily basis for a few years now. All done into a spreadsheet, which has turned into a bit of a monster, with graphs for everything! With your heating requirements, it is (pretty obviously) essential to do comparisons with similar external weather conditions.
I did once produce a graph that showed how my gas usage was inversely proportional to the minimum outside temperature. No great eureka moment there, but it did illustrate how closely they follow each other. Think I even worked out what each degree drop in temperature cost me, but that's just depressing! :rotfl: