Customer Resources

Your fill pipe is the pipe where the delivery driver connects the truck’s hose to fill your oil tank. As the fuel is pumped in, the rising oil level pushes air out of the tank through the vent pipe.

The vent pipe has a whistle (called a vent alarm) that sounds as air escapes. When the whistle stops, it means the tank is full and the driver stops pumping.

A properly working vent whistle is essential for a safe delivery. Always ensure your fill and vent pipes are clear of snow, ice, or debris. If the vent whistle isn’t working, please contact our service department to schedule an inspection.

Fill and vent pipes are typically located on the exterior wall near where your tank is positioned inside the basement. For outdoor tanks, they’ll be located directly with the tank.

• The fill pipe is usually shorter
• The vent pipe is usually taller
• Both should have caps to prevent water or debris from entering

Most oil tanks are installed in the basement or on the exterior of the home, usually near the back or side walls.

• Tank sizes range from 220 to 1,000 gallons
• The industry standard is a 275-gallon basement-installed tank

Most modern oil tanks have a gauge on the top of the tank. It typically consists of a clear cylinder with a float inside. The gauge is marked with:

• F
• ¾
• ½
• ¼

The float indicates the level of oil. For example, in a 275-gallon tank:

• At ½ full, you have approximately 135 gallons
• If the float is at the bottom or not visible, your tank is likely empty or nearly empty

A working gauge is crucial for monitoring oil levels. To check:

Tap the clear cylinder gently — the float might just be stuck.

If that doesn't work, carefully remove the outer case and gently press the float down.

• If the float springs back, it’s working
• If it doesn’t return to its position, it's likely faulty

In this case, contact the service department to schedule a repair or replacement.