how many gallons of heating oil per month
Adirondackwannabe (36461)âGreat Answerâ (2) Flag asâ¦ Â¶. Ugh. Oil heat is freaking killing us (financially) this winter. We go through an entire tank (about 250 gallons) in a about a month. The house is 1100 square feet, but not all areas are heated (none of the bedrooms have heating vents, nor the basement). Itâs an old house, and not well insulated (if at all), so we have to keep it set at about 70 degrees to stay comfortable.