How Low Should You Let Your Propane Tank Get?

Updated September 8, 2026

Waiting until the last minute can turn a normal routed delivery into an urgent service problem. The safest practical approach is to follow your propane supplier's guidance and give the provider enough notice to schedule the delivery normally.

Pricing source note: Public benchmark references come from NYSERDA's New York Home Propane Price Monitoring Program. Long Island combines Nassau and Suffolk. Benchmarks are informational and are not guaranteed dealer quotes.

Do not use a universal percentage as a guarantee

Different households, weather conditions, appliances, providers and delivery schedules create different refill needs. Your supplier is the right source for the refill threshold and notice they expect for your account.

Why running out matters

A completely empty propane system can require additional safety procedures before service is restored. That is another reason not to intentionally run the tank to zero.

Tank monitoring can reduce guesswork

A remote monitor can provide regular tank-level readings and alerts, helping a homeowner or provider plan delivery before the account becomes urgent.

Information to include in a quote request

Current tank percentage
Tank size or 'Not sure'
How soon you need delivery
Annual usage estimate
Current supplier
Whether you want automatic delivery or will-call

Primary public sources

NYSERDA Monthly Average Propane Prices · U.S. EIA New York Residential Propane Prices

Frequently Asked Questions

At what percentage should I order propane?

Use the threshold and lead-time guidance from your propane supplier rather than relying on one universal number from the internet.

What happens if I run completely out of propane?

Additional safety checks or procedures may be required before the system is placed back in service. Contact your propane provider rather than attempting to restart the system yourself.

Can a tank monitor alert me before I get too low?

Yes, depending on the monitoring system and how alerts are configured.

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