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The average home uses 5.3 gallons of oil on 30-degree days and 4.5 gallons on 35-degree days. Therefore, the average home in the Philadelphia area will use about 4.9 gallons of heating oil per day during winter. A 275-gallon supply of heating oil will last for approximately 56 days at the rate of 4.9 gallons per day.

As a result, a typical home utilizes around 5.3 gallons of oil in one day. This means that a full tank will last approximately 52 days during the coldest months of the year. A 275-gallon tank is usually enough to keep a typical home warm the entire winter season. However, your home might be fitted with a smaller tank.

What happens if I order too much heating oil and the whole order cannot be delivered into my tank? The driver will only put as much heating oil in your tank as it is safe to do so. If we do not deliver the whole order, please give us a call for a refund for the difference.

The Oil-Club is the largest heating oil club in the UK. By grouping our club orders, we save our members £100's on the cost of heating oil each year, and reduce harmful CO2 emissions. Discover more.

How long should 100 gallons of heating oil last? Using the calculation above, 1.7 gallons per hour x 10 hours a day (assuming the number of hours you spend at home is 10 hours) = 17 gallons a day. That means, 100 gallons of oil will last you about six days (100-gallon tank / 17 gallons per day = 5.8 days).

What if I order too much heating oil? This should give you a rough estimate of what your tank will take, if you happen to order more than your tank can hold, don't worry as the extra will be refunded back to you!