jackpot posted:

I've got an oil furnace with a 250 gallon tank outside. I got a fill-up of 200 gallons on January 4, and just a few minutes ago my furnace hiccupped and shut itself off prematurely. I was able to get it going again, but I'm just wondering if there's any way possible that I'm scraping the bottom of the tank, meaning I somehow used 200 loving gallons of $3.20 oil in the past six weeks. I'm in a one floor apartment, about 800 square feet, and I keep the thermostat around 70 when I'm home, 65 when I'm not. And there was a one week stretch where I didn't use heat at all because it was really warm.

I'm trying like hell to find some kind of heating oil estimate calculator, but I can't find anything; could anyone take a guess on how much oil I'm using?

Edit: To answer the obvious question, I can't really tell how much oil is in the tank. It's an old rusted piece of poo poo and there's no meter or anything, just a hole in the top and a rock tied to a rope used as a dipstick. Not very trustworthy.