A New Tank's K-Factor May Need a Delivery to Recalculate

The Situation

What starts the update The delivery software guide, updated September 10, 2026, says a new tank on estimated, degree-day delivery needs a delivery of gallons to start its first K-Factor update. A change to the tank's percent alone cannot start it. This is how one system works; check yours.

The Facts

How the tank record works K-Factor is the number of degree days it takes to burn one gallon of fuel. House details, such as square footage and insulation, affect that value. Daily Use covers appliances such as water heaters and clothes dryers.

At setup, the example sets a new tank's first K-Factor at the next degree day or when the tank reaches 20%. As sales are made, the Tank Readings screen stores delivery dates and actual tank values.

Later K-Factor updates use the set percent-change threshold and data from the last two deliveries. For Delivery Type 2 tanks, the software uses K-Factor to lower the tank's estimated percent. It also uses Daily Use Gallons where they apply.

Business Impact

Check the saved settings Start with the account record. Read the saved setup values. Then compare the house and appliance details with the delivery history and your own software's guide.

For dispatch, that review ties the discussion to one tank and its saved settings. Ask the person who manages the delivery software about any entry you cannot explain.