Hello, I have a very old imperial meter made by Parkinson Cowan (Ser/ No S512290) that works in ft2. Would someone kindly help with the conversion to kwh please. I also would like to know if it measures in ft2 or 100ft2. This is an image, many thanks.
Best answer by BPLightlog
Updated on 12/12/24 by Shads_OVO
Ok so it’s measuring in cubic feet (ft3) the reading on the dial is 4974 (ignore the Red figure) and the calculations are like this (posted on your bill)
So the extra piece to understand is the x 2.83 along with the others to get kWh.
If the previous reading was 4874 for example the difference is 100 so the calculation would be:
100 x 2.83 x calorific value (typically 39) x 1.02264
The result is then divided by 3.6 to get kwh
Remember that the calorific value varies so that figure can change (and does)
+5Hi
Was your reading different somehow?
For kw, there’s no ‘imperial’ kw .. a kw is a kw
The difference is in the meter reading in feet or metres
The conversion from those readings are
Also, which particular price hike are you talking about?
… your gas meter normally reads in either cubic feet or cubic metres.
Just to add to BP’s comment, some meters are capable of showing both volume and kWh, so you have to look carefully to see which number you’re looking at. I don’t think any gas meter produced this century will measure cubic feet (ft³, cu.ft.); they’re all cubic metres (m³) now.
We have seen recently a case where a customer submitted the kWh reading from his meter instead of the m³ reading the system expects; the conversion is only approximate, so the supplier (e.g. OVO) will do the conversion using the appropriate daily CV as BP’s picture shows. Perhaps this is what you did back then.
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