Top Signs Your Propane Tank Needs Refilling

Posted on May 29th, 2025 by Devine Bros

Propane is a reliable, efficient energy source for many homes and businesses. Whether you’re grilling burgers, heating your home, or fueling appliances, a steady propane supply is key. But how can you tell when it’s time to refill your tank? Running out can be frustrating, inconvenient, and even dangerous. Luckily, there are clear signs to watch for that can help you stay ahead of the game.

Here are the top signs from our Devine Bros team that your propane tank needs refilling and some tips to ensure you never run out.

1. The Tank Gauge Shows Low Levels

The easiest way to monitor your propane is to use the gauge on your tank. Most propane tanks have a gauge that reflects the percentage of propane remaining. If your gauge reads 20% or lower, it’s time to plan a refill. Waiting too long can leave you scrambling, especially during colder months when propane use may spike.

Pro Tip: Make a habit of checking your gauge weekly, especially if you use propane frequently or during high-demand seasons.

2. Your Appliances Aren’t Functioning Properly

Propane-powered appliances like stoves, grills, and water heaters often provide the first clue that your propane is running low. If flames on your stove shrink or turn from blue to yellow, or if your grill isn’t heating as it should, your propane supply may be dwindling.

What to Watch For:

Lower flame intensity
Uneven heating on grills
Water taking longer to heat

These changes are often signs that your tank is nearly empty and unable to maintain sufficient pressure.

3. You Notice an Unusual Odor

One unique safety feature of propane is that it’s mixed with a distinct, sulfur-like scent, often compared to rotten eggs, to signal leaks or empty tanks. If you notice this smell, it could mean your tank is running out, especially if it coincides with declining appliance performance.

Important Note: If the odor is strong or persistent, it might indicate a leak. Turn off your propane supply immediately and contact your provider or a professional technician to investigate.

4. Your Heating System Stops Working

For homes using propane heating, an empty tank can cause your system to shut down entirely. This often happens on colder days when propane use is higher for heating. If your home feels unusually cold or your heating system struggles to operate, check your tank first.

Remember, running out of propane not only disrupts your routine but can also lead to safety inspections or extra fees to restart your tank after a complete shutoff.

5. Frost Buildup or Condensation on the Tank

Propane tanks running low can develop frost or condensation on their exterior due to changing pressure levels. While this isn’t always the case, it’s another visual cue to observe if you’re unsure about your tank’s supply.

How to Check: If you see frost near the regulator or top of your tank, it’s worth taking a closer look at your gauge and other indicators.

Propane Delivery in Fairfield County

With over 100 years of experience, Devine Bros. ensures that residents and businesses of Norwalk, Connecticut, are never out of fuel with our automatic propane delivery service. Whether you need heating system replacement or building supplies, our professionals are here to help.