Emergency Heating Oil Delivery: What to Do When You Run Out

Running out of heating oil is stressful — especially when it happens in January at 10pm. But it's a solvable problem, and knowing the right steps will get your heat back faster and avoid unnecessary service calls. This guide walks through exactly what to do when your tank runs dry.

Step 1: Confirm You Actually Ran Out

Before calling for emergency delivery, verify the problem is fuel and not a system malfunction:

1. Check your tank gauge — if it reads empty or very low (under 1/8 tank), you're likely out of fuel.
2. Look at your thermostat — is it calling for heat (set above room temperature)?
3. Press the red reset button on your oil burner once. If it fires briefly then shuts off again, you're almost certainly out of fuel. If it doesn't start at all, the problem may be electrical or mechanical.

Do NOT press the reset button more than once or twice. Excess oil pumped into the combustion chamber from repeated resets can cause a smoke-up when the system restarts.

Step 2: Call for Emergency Delivery

Most heating oil dealers offer 24/7 emergency delivery service, though it costs more than a standard scheduled delivery. Emergency delivery fees typically add $50–$150 to your order, and you may pay a premium per-gallon price. That's the cost of running out — factor it into why automatic delivery or routine monitoring matters.

When you call:

• Tell them you've run out (not just low) — this affects what they send. A run-out delivery requires a burner restart, and some dealers charge separately for that service call.
• Ask for a minimum delivery — typically 50–100 gallons is enough to restart your system and get heat going; you can schedule a fill later.
• Confirm whether the delivery driver will restart your system or if you need a separate service call.

Step 3: Restarting Your System After a Delivery

Once oil is delivered, your system won't restart automatically — there's air in the fuel line that needs to be purged. Here's the process:

1. Wait 15–20 minutes after delivery for the oil to settle and any water-oil separation to occur at the bottom of the tank before the line draws.
2. Check the reset button on the oil burner (usually a red button on the primary control unit, often on or near the burner assembly). Make sure it's in the normal position (not tripped).
3. Press the reset button once and stand by. The burner should attempt to fire. You may hear it try, stutter, then lock out as it purges air from the line.
4. Wait 30–60 seconds after lockout, then press reset again. The second or third attempt usually fires successfully once the air is cleared.
5. If it doesn't fire after 3 attempts, stop pressing reset and call your dealer or an oil service technician — further resets can flood the combustion chamber with unburned oil.

Step 4: Bleed the Line (If Self-Service)

Some homeowners learn to bleed the fuel line themselves, which can get the system restarted faster than waiting for a technician. It requires a wrench and a small container and takes about 10 minutes. The process involves loosening the bleed screw on the fuel pump while the burner attempts to fire, allowing trapped air to escape. Your burner's service manual or a quick YouTube search for your specific unit will show the exact procedure. If you're not comfortable with this, call a technician — it's not worth creating a fuel spill problem.

How to Prevent Running Out Again

Running out is usually preventable. Here's how to avoid a repeat:

• Switch to automatic delivery: Your dealer estimates your usage from degree-day data and delivers before you run low. It costs the same per gallon as will-call for most customers and eliminates run-outs entirely.
• Set a low-tank alert: Many smart thermostat systems and tank monitoring devices (like the Smart Oil Gauge) will send phone alerts when your tank drops below a threshold. These devices cost $80–$120 and install in your tank's fill pipe in minutes.
• Never let your tank drop below 1/4: Make that your personal trigger point for ordering. A 275-gallon tank at 1/4 full still has roughly 60–70 gallons — enough buffer for most delivery schedules.
• Schedule summer fill-ups: Summer oil prices are typically lower than winter prices, and dealers have more delivery flexibility. A summer fill at lower prices protects you from both price spikes and winter run-outs.

Related: Emergency Heating Oil Delivery: What It Costs and What to Expect  ·  Ran Out of Heating Oil? Here's What to Do Right Now