Dollarwise

What You Should Do If You Run Out of Heating Oil

Running out of heating oil is every homeowner’s nightmare, especially during a cold winter. The sudden loss of heat or hot water can make a house uncomfortable fast and create urgent safety concerns.

But don’t panic.

With the right steps, you can get your heat back quickly and even avoid long-term damage to your home’s heating system.

At DollarWise, we want to make sure you’re prepared. This guide explains how to prevent running out of heating oil, what to do if you already ran out of heating oil, and what to do if you don’t have money to buy more.

 

Step 1: Verify the Problem

Before taking any action, make sure your tank is actually empty.

  • Check the float-style gauge on your oil tank. Sometimes gauges stick, giving a false reading.

     

  • Press the float gently; if it rises slowly, there may still be oil in the tank, and the issue might be with the furnace, boiler, or water heater.

     

  • Look for other signs of fuel: No flames in your burner or a sudden drop in temperature. Confirming the tank is empty helps you avoid unnecessary emergency measures.

Learn more about how to read your heating oil tank gauge from our partner HOP Energy.

 

Step 2: Call Your Heating-Oil Supplier

Once you confirm your tank is empty, contact your fuel provider immediately.

  • Emergency delivery: Many companies offer rapid-response service when a tank runs dry. Extreme cold, snowstorms, or high demand can delay delivery, so don’t wait.

     

  • Small batch delivery: If your tank is completely empty, you might request a partial delivery just to restart your furnace while waiting for a full refill.

Order heating oil online 24/7 with DollarWise.

 

(Optional) Step 3: Use Diesel or Kerosene Temporarily

If a delivery can’t reach you immediately, you can safely use diesel fuel as a short-term substitute.

Important: Limit diesel use to short-term emergencies; it burns hotter and produces more soot than standard heating oil.

  • Diesel and heating oil are nearly identical, though there are differences between the two fuel sources.

     

  • Purchase 5–10 gallons in an approved yellow container and pour it into the fill pipe outside.

     

  • Wait about 10 minutes for any sediment to settle before restarting your furnace.

Read more about the differences between heating oil and diesel.

 

Step 4: Restart or Bleed Your Furnace

  • After adding fuel, your furnace may need a restart:

    1. Press the reset button on the furnace once or twice.

       

    2. If it still won’t start, you may need to bleed the fuel line:

       

      • Turn off the furnace.

         

      • Loosen the bleeder valve and let air and fuel flow until clean oil appears.

         

      • Tighten the valve and restart.

         

    Tip: If you’re uncomfortable with bleeding your furnace, always call a professional.

 

Step 5: Understand the Risks of Running Dry

  • Running out of heating oil occasionally is usually not catastrophic thanks to modern safety features:

    • Automatic shut-off: Most furnaces and boilers stop before damage occurs.

       

    • Potential damage: Repeated or prolonged empty tanks can harm filters, pumps, or oil lines. Air in fuel lines may clog nozzles, and water condensation can cause rust and sludge.

       

    Household risks: Extended outages in cold weather can lead to frozen pipes, increasing repair costs.

 

Step 6: Options When You're Out of Oil and Out of Money

  • If payday isn’t for another week and you realize you ran out of heating oil with no money in your account so you can buy more, federal and state programs might be able to help:

    • LIHEAP: The Low Income Home Energy Assistance Program provides federally funded heating bill help and emergency energy assistance. Eligibility depends on household income and varies by state.

       

    • Local fuel providers: Many companies offer monthly budget plans, allowing you to spread costs and avoid emergencies. If your tank is empty, call your provider and see if they can work with you.

    Learn more about LIHEAP assistance.

 

Step 7: Prevent Future Runouts

  • Avoid the stress of running dry with these tips:

    • Refill early: Don’t wait until empty; schedule a refill when the gauge hits one-quarter full.

    • Monitor usage: Use a tank monitor or enroll in automatic delivery so your supplier refills based on actual usage.

    • Maintain a half-full tank in offseason: Reduces condensation and sludge formation.

    • Conserve heat: Improve insulation and weather-strip windows to maximize efficiency.

    Discover the Smart Oil Gauge and other monitoring tools to keep ahead on your heating oil’s amount.


Common Questions About Running Out of Heating Oil

Short outages usually won’t harm the system due to automatic shut-offs. Extended empty periods can introduce air into the lines, clog filters, and cause rust.

The furnace shuts off, heat is lost, and filters may need replacement. You may need to bleed the lines before restarting.

Press the red reset button. If it doesn’t start, bleed the fuel line until only oil flows, then restart. Call a professional if unsure.

Yes, diesel is nearly identical to heating oil. Add 5–10 gallons in a yellow container and pour into the fill pipe. Limit short-term use.

Five gallons may last 5–10 days in summer but less than a day in winter. Order promptly when levels are low.

Confirm the tank is empty, call your supplier, use temporary fuel if needed, and restart or bleed the furnace.

LIHEAP offers heating bill assistance and emergency services. Many suppliers have budget plans to prevent future crises.

Yes. Extended heat loss in cold weather can freeze pipes and cause bursts.

Refill early, monitor your tank, use automatic delivery, keep the tank half-full, and improve home insulation.

Not always. Only if the furnace won’t restart after pressing reset. Call a professional if unsure.

Order Cheaper Heating Oil

  • Running out of heating oil is stressful, but acting quickly can restore comfort and prevent costly damage. Verify your tank, call your supplier, use temporary fuel if needed, and take steps to prevent future runouts. Programs like LIHEAP and budget payment plans provide additional support when funds are tight.

    With proper monitoring, maintenance, and planning, you can enjoy a warm, safe home all winter long and prevent emergencies before they start.

    Order heating oil online 24/7 with DollarWise and stay ahead of winter’s chill.

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