Thanks i'll print that off and wallpaper the van with it.
gas rate combi
- Thread starter wiss
- Start date
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It was published by the dog as TB216.
Biggest problem with these meters is they don't auto update so you have to keep pressing the button. Worries me that the delay waiting for the update could very easily account for a = or - 5%.
Biggest problem with these meters is they don't auto update so you have to keep pressing the button. Worries me that the delay waiting for the update could very easily account for a = or - 5%.
there's a constant I worked out 10yr's ago, widely used now.
for imperial meters.
divide 1097 K by the time it take to burn 1cuft of gas gives Kw/hr.
for imperial meters.
divide 1097 K by the time it take to burn 1cuft of gas gives Kw/hr.
Ignore the 2 minute time (that doesn't work for the L&G/Siemens and many other meters) and use this....
(2nd reading - 1st reading) x 38.75 / time in seconds = gross Kw i/p
(2nd reading - 1st reading) x 3.6 / time in seconds = m3/hr
Time for at least 2 minutes but formula will work for any time period (of course ensuring no burner modulation). Index readings in litres.
(2nd reading - 1st reading) x 38.75 / time in seconds = gross Kw i/p
(2nd reading - 1st reading) x 3.6 / time in seconds = m3/hr
Time for at least 2 minutes but formula will work for any time period (of course ensuring no burner modulation). Index readings in litres.
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C
charliechaplinspants
Bit rude....
it works but most Engineers have a chart I think, that makes it very easy, you don`t have to do the calculation. If you is an Engineer you will be well clued up on it innit. 
I just do the times and check the chart. Sorted
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