Check Heating Oil Supply Weeks Against Delivery Lead
A dip reading is litres; the order book thinks in delivery weeks. Divide each tank’s litres by its measured weekly burn and compare the supply weeks with the lead time your supplier actually quotes.
1 · tank | litres in the tank | litres burned per week
FIRST-LOAD
Input is processed locally and a draft is saved automatically in this browser profile when storage is available. Reset to sample clears that draft; Pro history has its own clear button. A state link encodes your inputs in its URL: share only non-sensitive rows. Browser history, clipboard and anyone receiving the link may retain it. Optional AI use below leaves this device; it is not required.
Data note: Everything runs in this browser tab on the oil supply gauge: your tank | litres in the tank | litres burned per week stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Perspective: Before: Only the oil in the tank buys weeks; the gauge’s red zone is not supply. After: the oil supply gauge shows the working beside each named row so the reader can change the assumption and inspect the consequence.
2 · Read the oil supply gauge
Supply arithmetic on the readings and lead times you supply. Not fuel-price advice, an energy-efficiency assessment or a delivery guarantee; confirm order thresholds, prices and lead times with your supplier, and follow carbon-monoxide and fire safety guidance for any appliance or tank.
Paid layer: oil supply gauge print and history
one-time step · the free reading above stays complete
Free tier
- one complete oil supply gauge run in the app
- three samples plus unlimited article-demo runs
- unwatermarked result text and an explicit, user-triggered state link
What $4 one-time adds
- print the oil supply gauge with its row workings
- CSV of supply weeks and row explanations
- last five reading summaries saved in this browser profile
$4 once for repeated filing of the oil supply gauge, not for a better answer. Illustrative time basis: avoiding one five-minute manual reformat per saved reading; no market-price or guaranteed-savings claim.
Local history (this device)
- No saved runs yet — your first run files here.
Checkout is unavailable until a payment link is configured. The optional unlock is browser-local, profile-scoped and best-effort, not server-verified access. Clearing browser data can remove it; there is no account or cross-device recovery.
Boundary and sources
Supply arithmetic on the readings and lead times you supply. Not fuel-price advice, an energy-efficiency assessment or a delivery guarantee; confirm order thresholds, prices and lead times with your supplier, and follow carbon-monoxide and fire safety guidance for any appliance or tank.
- Method: The quoted lead, plus the days a rural round or a cold snap historically adds. Three weeks is a working default only if your supplier has met it in this season.
- All sample records are invented examples. The app does not fetch measurements, policies, files or personal records.
- Google’s official pricing page, fetched 2026-09-29, lists free-tier access including AI Studio. Optional formatting only; limits and availability can change. Free-tier content may be used to improve products. Never paste private records there.
Mechanism: competence-autonomy-loop
Optional AI formatting, not calculation
For this oil supply gauge, use the free AI Studio interface only if available to you, with no paid API key. Manual entry completes the same workflow for free. Supply only fictional or non-sensitive notes. Review its output against the source; never paste unresolved questions into the numeric rows.
Format my non-sensitive notes for a oil supply gauge. Return plain rows only: tank | litres in the tank | litres burned per week. Preserve supplied quantities exactly. Do not guess missing values; list questions separately. Do not calculate or add advice. I will check every row before pasting into the local tool.
Accepted schema: tank | litres in the tank | litres burned per week. No AI response is executed as code.