One tank lasted 3.5 days with both me and the bride. When I'm alone it will last 6-7 days. I turn off the heater when I leave for work in the morning. Less cooking too. Thats when the temps were in the mid to upper 40's at night. Tonight its brrrrrr 36 degrees with a wind chill of 26.
I had my 120 gal tank delivered Friday. No more worries.