About OilTankCharts
The chart taped to the boiler room wall is always a photocopy of a photocopy, and the one in the truck is worse. This site replaces them with charts you can read, print, and trust to state their own limits.
Who makes this
OilTankCharts is built by people who work in the heating oil trade in New York and got tired of squinting at photocopied chart books. We dip tanks, read delivery tickets, and answer these questions for real customers in the course of a normal week.
What you will find here
- Computed tank charts for the standard sizes, generated from tank geometry. See where the numbers come from.
- Free calculators for odd tank sizes, burn rate, and days of oil left. Everything runs in your browser.
- Plain guides to gauges, tank sizes, K-factor, and when to order.
How the charts are made
Every chart is generated from nominal tank geometry at 231 cubic inches per gallon, and each one is dated and versioned so you can tell which revision you printed. Charts are estimates: real tanks vary by manufacturer and age, and your tank's data plate wins over anything on this site.
Contact
Corrections, questions, or a tank we missed: contact@oiltankcharts.com.