"phil" wrote in message
...
Is it possible for an oil burning boiler to become so inefficient that
it uses up far more oil than it should?

I ask because I had an oil delivery yesterday (1200 litres) and, on
the level indicator tube on the tank, marked the oil level. Since
yesterday the boiler has been on twice and the level has gone down an
inch, so at that rate our 1200 litres will last all of two weeks
......... this is NOT normal!

leak ?