How much heating oil do I need?

Answer a few questions for a rough estimate for a typical Long Island winter. No email needed.

Estimates only. Real use depends on the weather, your thermostat and your equipment. Based on a typical Long Island heating season (about 5,000 heating degree days). Tanks are filled to about 90% to leave room for expansion.

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How the estimate works

Yearly use ≈ heated square feet × 0.35–0.55 gallons, plus about 200 gallons if your boiler also makes hot water.
Daily use follows the weather: we spread your heating use across a typical season and show a mild day and a cold day.
Room in your tank = about 90% of the tank size minus what's in it now.

Want to cut your usage? A yearly burner tune-up keeps your system burning clean. More reading: how long a tank of oil lasts and how to read your tank gauge. Out already? See ran out of oil.

Questions

How much heating oil does a Long Island house use per year?

Many South Shore homes use somewhere around 600–1,000 gallons a year, depending on size, insulation and whether oil also heats the water. Use the calculator above for your own estimate.

How much oil should I order?

If your gauge is at 1/4 on a 275-gallon tank, a fill is usually around 150–190 gallons. Or ask for "fill my tank" and the driver fills it safely.

Is there a minimum delivery?

Yes. See our FAQ for the current minimum, or call 631-264-8800.