I have an oil question....
I just bought a new house and we use oil to heat it. Not the hot water tank but just the heat in the house.
Anyway, I had my oil tank filled maybe November 22nd or 23rd. The rules they have only let they fill to the 3/4 mark.
It's only been maybe 2 1/2 weeks or more and my tank is almost down to the 1/2 mark.
Where did all my oil go. It cost me 1000 to fill it and if I have to pay another 1000 by January that is really gonna suck.

When it was filled in November is was warmer and now it have dropped at least 10 degrees celcius. Does the volume or mass of the oil degreese with the cold weather?? Kinda like a car tire, the air expands and shrinks with the temperature.

I also dont have any interior doors in the house yet. I figured that could be why, so I put up big blankets and covered off the main door ways and that seems to be helping with controlling the area the heat goes into...

But do you have any suggestions as to why my oil tank is going down so fast??
I go out everyday and check the guage and you can see that it moves millimeters everyday...?