Mercedes Mullins
Knowing how much fuel oil you have left is essential to ensure your comfort, especially during the cold months. While some fuel tanks have gauges to indicate fuel levels, others do not. In such cases, you can manually check the fuel level using a measuring stick or dipstick. This involves inserting a long stick into the tank and measuring the depth of the oil by observing the wet mark on the stick. Additionally, you can feel the metal side of the tank to identify the height at which the temperature changes, indicating the fuel level. By understanding these methods, you can effectively manage your fuel supply and maintain a comfortable living environment.
| Characteristics | Values |
|---|---|
| Method of measurement | Using a gauge, a stick, or a dipstick |
| Gauge | A clear glass or plastic cube marked with numbers (F, 3/4, 1/2, 1/4) and a red indicator to show the amount of fuel left |
| Stick | A long stick or pole, at least six feet in length |
| Dipstick | Similar to a car's oil dipstick |
| Reading the gauge | When the float is near the top, the tank is full. When it's near the bottom, the tank is empty. When it's halfway up, the tank is half full |
| Manual measurement | Remove the fill valve cap, insert the stick into the fill hole until it touches the bottom, mark the stick where it meets the top of the hole, pull out the stick and measure the wet mark |
| Visual indicator | The metal side of the tank will be noticeably warmer at the height of the fuel level |
| Sound | Tap on the side of the tank from top to bottom; the sound will change when you reach the level of the remaining fuel |
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What You'll Learn
Manually check the level of oil in your tank
There are several reasons to manually check the level of oil in your tank. For instance, if your oil deliveries are set up on a will-call basis, you will need to keep an eye on the level and call your fuel provider when your supply is low. Even if you have scheduled deliveries, it is still a good idea to check your fuel oil levels from time to time. An unexpected cold spell could cause your heating system to use more fuel than expected, and there is a risk of running low before your next delivery. Additionally, an issue with your heating system can cause it to use more fuel than normal.
There are two main ways to check the level of oil in your tank: reading the gauge on the tank or physically measuring the amount of oil in the tank.
Reading the gauge on the tank
Most oil tanks come with a gauge installed, which is usually located on the top of the tank. This is a clear cylindrical vial with a float inside. The float rises and falls in the tube based on the amount of fuel in the tank. When the float is near the top of the tube, the tank is full or nearly full. When the float is near the bottom of the tube, the tank is approaching empty. The markings on the gauge are usually F (Full), 3/4, 1/2, 1/4, and E (Empty). Check where the middle of the disc is pointing to determine the level of oil in your tank. However, it is important to note that the gauge is not always accurate. Several factors can interfere with your reading, such as a malfunction, oil buildup, or the shape of the tank.
Physically measuring the amount of oil in the tank
If your tank does not have a gauge, you can manually measure the contents of your oil tank with a gauge stick, also known as a tank stick or dipstick. A wooden yardstick or metal rod can be used, but the best gauge sticks are varnished to get the most accurate reading possible. To measure, turn the top fill valve cap counter-clockwise and remove it from the tank. Lower the stick gently until it touches the bottom of the tank, then bring it back up and read the depth of the oil. Record the measurement and wipe the measuring stick clean with a dry cloth. Lower the stick again and measure a second time, then record these results. Secure the top fill valve cap to prevent leaking. Repeat this process each week.
Other methods of manually checking the level of oil in your tank include using temperature strips, which change colour with temperature, or feeling the metal side of the tank and looking for the height at which the tank is noticeably warmer.
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Use a stick or pole to measure the oil level
If your oil tank gauge is broken or you want to see for yourself how much oil is left in the tank, you can use a stick or pole to measure the oil level. This method is known as "sticking" the tank and can be done on both above-ground and underground tanks.
Step 1: Prepare the Stick
Use a long, clean stick or pole that is at least six feet in length. Ensure that it is free of any loose material that could come off in the tank and block the fuel line.
Step 2: Access the Tank
Remove the plug or cap from the top of the tank. If your tank has a vertical fill pipe, carefully slide the stick into the fill pipe. For tanks with a cap on top, you can simply lower the stick straight down into the hole.
Step 3: Measure the Oil Level
Lower the stick into the tank as straight as possible until it gently touches the bottom. Keep it straight to ensure an accurate measurement.
Step 4: Remove and Examine the Stick
Pull the stick out of the tank slowly. Look at how much of the stick is wet with oil. The height of the wet mark will indicate the oil level in the tank.
Step 5: Estimate the Amount of Oil
To estimate the amount of oil in gallons, refer to a fuel oil tank chart. Find your tank size and compare it with the inches of oil measured on the stick. For example, if you have a 275-gallon vertical tank and the wet mark is nine inches tall, there is likely about 43 gallons remaining.
While this method provides a good estimate of the oil level, it may not give an exact measurement. It is important to regularly monitor your oil levels to avoid running dangerously low, especially during the winter months when oil consumption is typically higher.
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Use temperature strips to measure the oil level
If your fuel oil tank lacks a proper gauge, or you suspect that the gauge is damaged, you can use temperature strips to measure the oil level. These strips, which can be purchased at a hardware store, change colour with temperature. They can be affixed to the outside of your metal tank, and will indicate where the cooler (or warmer) fuel oil is by measuring the temperature of the tank. If the room temperature changes throughout the day, the strip will tell you where the liquid resides inside the tank by indicating where the tank itself is heating or cooling more slowly than the ambient temperature.
If the room temperature remains relatively constant, you can pour a bit of hot water over the strip to indicate where the cooling effect of the heating oil is keeping the temperature of the tank from going up. You can also use thermochromic paints or films to create a temperature-sensitive strip over a longer length, ensuring that the pigments you select are designed to change within the temperature ranges in that room.
Another method for measuring the oil level is to simply feel the metal side of the tank, moving upwards from the bottom, and looking for the height at which the tank is noticeably warmer. That will mark the fuel level, as the fuel will cool the metal tank faster than the vapours above. You can also use a yardstick or any long measuring tool to measure the specific number of inches of oil in the tank. Dip the stick in when the tank is full and mark off the full point, then use the same stick to check how far the fuel level has gone down after some time passes.
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Check the gauge on the tank
Checking the gauge on your fuel oil tank is a straightforward process. Most oil tanks come with a gauge installed, which is usually a cylindrical vial with a float inside. The float rises and falls based on the amount of fuel in the tank. When the float is near the top of the tube, the tank is full or nearly full, and when it is near the bottom, the tank is almost empty. Some gauges also have standard markings to indicate the levels, and the float will align with one of these to show the level of fuel in the tank.
Reading the top of the float may provide a more precise measurement. If you are unsure about checking the top of the float, you can also use where the markings hit the middle of the float. While reading the gauge indicates the fuel level present in your tank, it doesn't tell you how many gallons you have left. To estimate the number of gallons, you must first know the size of your tank and its total capacity. Then, multiply the level shown on the gauge by the tank size to approximate how much fuel you have. For example, if you have a 275-gallon tank and the gauge shows 1/4 full, you have approximately 60 gallons left (275 x 0.25 = 68.75).
If your tank does not have a gauge, you can use a stick or pole to measure the level of fuel. Remove the cap from the top of the tank and lower the stick straight down into the hole until it touches the bottom. Then, carefully remove the stick and measure the number of inches of oil. Refer to a fuel oil tank chart to estimate the number of gallons in the tank. This method may not be exact, but it should provide a fairly accurate reading.
It is important to regularly check your fuel oil levels to avoid running out of fuel. This is especially true during the winter months when you are more reliant on heating. Additionally, monitoring your fuel oil levels can help you identify any issues with your heating system, as it may start to use more fuel than normal if there is a problem.
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Use a Smart Oil Gauge
The Smart Oil Gauge is a device that helps you monitor how much fuel oil you have left. It uses an ultrasonic sensor to measure the level of oil in your tank throughout the day and transmits this information over your home Wi-Fi network. You can access this information on any smartphone, tablet, or PC from anywhere in the world.
The Smart Oil Gauge can be installed by the homeowner with a pipe wrench and joint compound, or a technician can be called for installation. The device costs $169.00 plus tax.
The Smart Oil Gauge allows you to track your fuel consumption and see how long a tank lasts, helping you budget accordingly. You can monitor gallons used per hour, day, week, month, and year. The app will also display the number of days remaining until your tank reaches 1/4 or 1/8 capacity, so you know exactly when to fill up.
Additionally, the Smart Oil Gauge integrates with Alexa, allowing you to ask about your average oil consumption and receive approximate dates for when you will need to order more oil. The device also offers the convenience of ordering oil through the app, where you can see local dealers in your area and order the appropriate amount to fill up your tank.
Overall, the Smart Oil Gauge provides a convenient and accessible way to monitor your fuel oil levels and consumption, allowing you to make informed decisions about ordering more oil and budgeting for your heating needs.
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Frequently asked questions
There are several ways to determine how much fuel oil is left in your tank. One way is to use a gauge, which is located underneath the hood-type cover on top of your tank. Another way is to use a measuring stick or dipstick to measure the number of inches of oil in the tank and then use a heating oil tank measurement chart to convert inches to gallons.
Reading a fuel oil gauge is similar to reading the fuel gauge in your car or a thermometer. Some gauges are in the shape of a tube with a small piece of plastic inside, known as a float. The float rises and falls up and down in the tube based on the amount of fuel in the tank. When the float is near the top of the tube, the tank is full or nearly full. Another style of fuel gauge uses a small lever to indicate the amount of fuel in the tank.
To use a measuring stick or dipstick, slowly pull the stick out of the tank and examine how much of it is wet with oil. The height of the wet mark will give you an idea of the amount of fuel remaining in your tank, provided you know the size of your oil tank. You can then use a heating oil tank measurement chart to convert inches to gallons.
