Straight answers about tanks, gauges, and safety.
Use this guide to understand an approximate tank reading and review the most important steps to take if you smell propane.
How do I read my propane gauge?
Most Blue Flame tank gauges show a maximum fill level near 80%. This leaves room for propane to expand as temperatures change. Gauge readings are approximate and can vary with conditions.
Approximate gallons remaining
| Gauge reading | 120-gal tank | 500-gal tank | 1,000-gal tank |
|---|---|---|---|
| 80% | 96 gal | 400 gal | 800 gal |
| 70% | 84 gal | 350 gal | 700 gal |
| 60% | 72 gal | 300 gal | 600 gal |
| 50% | 60 gal | 250 gal | 500 gal |
| 40% | 48 gal | 200 gal | 400 gal |
| 30% | 36 gal | 150 gal | 300 gal |
| 20% | 24 gal | 100 gal | 200 gal |
| 10% | 12 gal | 50 gal | 100 gal |
Figures are approximate. Temperature and operating conditions can affect the displayed percentage.
Why only 80%?
Propane tanks are generally filled to about 80% of total capacity to allow room for thermal expansion.
What if the gauge sticks?
A gauge can occasionally stick. A light tap may release it, but call Blue Flame if the reading remains questionable.
When should I order?
Use the online ordering destination or call the office before the tank reaches an unsafe runout condition.
What should I do if I smell rotten eggs?
Propane is naturally odorless. Ethyl mercaptan is added to create a distinctive rotten-egg smell that can warn of a possible leak. Leave immediately, avoid flames and sparks, and call from a safe location.
- Evacuate immediately
- Do not operate electrical devices
- Shut off the tank only if it is safe
- Call Blue Flame, 911, or the fire department from safety
- Do not return until cleared
- Have the system checked before reuse
Have another propane question?
Blue Flame’s local team is ready to help.