Running out of propane won’t damage your furnace itself, because the furnace simply stops running without fuel. The real risks hit the rest of your home: frozen pipes, a rusting tank, a required leak inspection, and a pricey emergency delivery. Here’s how a lack of propane affects your home and what to do if you run out.
Is your propane tank empty, but you still need heat? You’re probably wondering, “Can running out of propane damage a furnace?” As a family-owned team offering heating services in Sudbury, MA, Pro Comfort Control AC & Heating Installation helps homeowners keep their furnaces ready all winter.
Key Points
- Running out of propane won’t damage a furnace, but it leaves your home without heat.
- Frozen and burst pipes are the biggest property risk when the furnace shuts off in cold weather.
- An empty propane tank must be inspected for leaks before it’s refilled, which can delay heat for a few days.
- Refill your tank when it reaches roughly 30% to avoid running out.
- Check your propane tank gauge weekly during heating season.
What Causes a Home to Run Out of Propane?
Most homes run out of propane because of poor tank management or a leak. Depending on the size of your propane tank, you’ll have enough fuel to run your furnace for several hundred hours. Other propane appliances shorten that window, so you may need refills more often.
Poor Management
Poor tank management is the most preventable cause of running out of propane. Your supplier likely has you on a regular refill schedule, but a string of severe weather can delay a delivery by a day or more.
Abnormal usage also drains a propane tank faster than expected, such as during a stretch of unusually cold temperatures. If you’re not on a regular refill schedule, monitor your propane tank yourself. Refill it when your tank level reaches roughly 30%.
Leaks
A propane leak is the other main cause of an empty tank. Propane is naturally odorless, so gas companies add a sulfur or rotten-egg smell to it. Staying alert for that smell is the simplest way to catch a propane leak early.
If you smell gas, don’t use light switches or other electronics, because a single spark can ignite the gas. Once you’re at a safe distance, call your utility company to shut off the gas and electricity, then call your propane company. For gas lines inside your home, our gas leak repair team can help.
What Happens When You Run Out of Propane?
When you run out of propane, your furnace stops running, so running out of propane won’t damage the furnace itself. The bigger problems show up elsewhere in your home, from frozen pipes to delayed refills and extra fees.
Property Damage
Without a running furnace, extreme cold can freeze and burst your pipes. Burst pipes mean expensive repairs and can flood your home with significant water damage. Cold surfaces also collect condensation, which can warp furniture and hardwood floors and cause mold to form in carpet.
Problems With Refills
A propane leak that drained the tank also complicates the refill. Experts advise against refilling a leaking tank, since the new fuel would just leak out again.
Rust Buildup
A propane tank that runs too low becomes vulnerable to moisture, which leads to rust. A rusting propane tank springs more leaks, which means more damage and more nights without heat.
Appliance Issues
Running out of propane also shuts down your other propane appliances, such as a gas stove or water heater, until you refill. Depending on your appliances, you could lose cooked meals and warm showers at the same time.
Mandatory Inspection
When a propane tank runs out of fuel, federal law mandates a leak inspection before it can be refilled. You might go a few days without fuel depending on your supplier’s schedule, and you may pay an extra fee for emergency service.
Emergency Delivery
An empty propane tank usually means an emergency delivery and refill. Emergency service costs more than a standard fill, so preventing an empty tank saves you money.
What Should You Do After Running Out of Propane?
If you’ve run out of propane, shut off the tank’s supply valve and call your propane supplier right away. Don’t try to relight the furnace or other appliances yourself once fuel arrives. Follow these steps:
- Close the supply valve on the propane tank.
- Call your propane supplier to schedule a delivery and the required leak check.
- Open cabinet doors under sinks and let faucets drip to protect pipes while the heat is off.
- Let the technician restore service and relight pilot lights after the refill.
- Schedule a furnace check if the furnace won’t restart or runs poorly after the refill.
Air can enter the gas lines when a tank runs completely empty, so pilot lights and burners often need a professional to purge and relight them. If your furnace still won’t fire, our furnace repair team can find out why.
Managing Your Propane Levels
If you have a propane furnace or boiler, check the dial on your propane tank weekly, and replace the gauge right away if it breaks. If a company monitors your levels, keep in regular contact and ask for delivery updates so you can plan ahead.
Yearly heating maintenance keeps your furnace ready to restart cleanly when fuel returns. Our Comfort Club membership includes annual furnace maintenance and priority scheduling.
Pro Comfort Control Can Help Maintain Your Furnace
Can running out of propane damage a furnace? Not directly, but an empty tank can affect every other part of your home. Whether you have questions about your furnace flame or need your yearly maintenance, Pro Comfort Control AC & Heating Installation can answer your questions and keep your furnace in top shape. Book online, call the office, or schedule your appointment today.