Help Center Propane Tank Questions
How long does a 20 lb propane tank last?
Quick answer
A full 20 lb propane tank usually lasts 18–25 hours of medium grilling on a typical 3-burner grill — roughly 10–20 cookouts depending on burner count, heat level, and lid use. High-heat searing with all burners on can cut that to about 10–15 hours.
What affects tank life
- Number of burners running
- High vs medium flame settings
- How often the lid stays closed
- Ambient temperature (cold weather uses more fuel)
- Tank fill level — exchange tanks are often not 100% full
Practical rule of thumb
Many families refill every 4–8 weeks during peak grilling season. Keep a spare tank if you cook weekly or host often.