A propane truck running out of product at 3 p.m. because a will-call customer is empty is expensive. So is sending that truck across town for a 100-gallon stop that could have been planned with tomorrow’s route. How do propane companies schedule deliveries? The best-run dealers use a mix of customer usage history, weather, tank information, delivery zones, and daily exceptions to build practical routes before the truck leaves the yard.
There is no single scheduling method that fits every propane account. A high-volume commercial customer, a residential keep-full account, and a will-call customer each need different treatment. The goal is straightforward: deliver before the customer runs low, keep trucks productive, and give the office a clear picture of what is due next.
How Do Propane Companies Schedule Deliveries?
Most propane companies schedule deliveries using one of three methods: degree day scheduling, calendar day scheduling, or customer call-ins. In practice, many dealers use all three. The scheduling system identifies accounts that are due, dispatch reviews the list, then deliveries are grouped into efficient routes based on geography, tank size, gallons needed, truck capacity, and service commitments.
The process starts with accurate customer records. Dispatch needs the correct tank size, current estimated gallons, delivery history, fuel type, address, route area, and any instructions that affect access. A wrong tank size or an old consumption rate can turn a normally routine delivery into an out-of-gas call.
Degree day scheduling for heating accounts
Degree day scheduling is the backbone of automatic delivery for many residential propane accounts, especially in colder parts of the country. It estimates fuel use based on how much heat a customer’s home typically needs as temperatures drop.
Each customer is assigned a K factor, which represents the number of degree days expected per gallon of propane used. If an account has a K factor of 5, for example, the system estimates that the customer uses one gallon for every five degree days. As daily temperatures change, the system accumulates degree days and estimates how much propane has been consumed since the last delivery.
When the estimated tank level reaches the dealer’s chosen delivery point, the account appears on the due list. That delivery point might be 30 percent, 25 percent, or another level based on the customer’s tank size, location, usage pattern, and the dealer’s comfort level. A remote location or a customer with a history of sudden demand may justify a larger safety margin.
Degree days are useful because weather affects heating demand far more than the calendar does. A mild January week may barely move an account, while a sharp cold snap can put dozens of customers on the board at once. Automated temperature updates and current degree day data help dispatch respond before a route becomes a problem.
Still, degree day scheduling is an estimate, not a tank monitor. New customers, remodeled homes, added space heaters, propane fireplaces, pool heaters, and changing occupancy can all alter actual consumption. Dispatchers should review unusual usage and adjust K factors as delivery history builds.
Calendar day scheduling for predictable use
Calendar day scheduling works well when usage is steady and not closely tied to outdoor temperature. A restaurant using propane for cooking, a farm operation, or a customer with a known year-round load may be scheduled every 14, 21, or 30 days.
It can also be a good temporary approach for a new customer whose degree day history is not yet reliable. Instead of guessing at a K factor, the dealer can schedule a check or delivery at a sensible interval, then refine the account after a few fills.
The trade-off is that calendar scheduling can be less efficient for heating-only customers. A 30-day cycle that works during mild weather may be too late during a severe cold period. For that reason, many dealers use calendar days for stable commercial loads and degree days for residential heat accounts.
Will-call orders and daily exceptions
No matter how strong the automatic delivery program is, the office will still take call-ins. Some customers prefer to watch their own tanks. Others may call because of a special event, equipment change, or a missed forecast in their own household.
A good dispatch process puts call-ins into the same operational picture as automatic deliveries. The office should be able to see whether the customer is already scheduled, whether a truck is in that area, how many gallons the stop will likely require, and whether the request is urgent. That prevents duplicate deliveries and makes it easier to fit a routine will-call into an existing route.
Out-of-gas calls need separate attention. They may require leak checks, appliance relighting, priority service, and a different conversation with the customer. They also provide useful information. If the account was on automatic delivery, dispatch should review the K factor, tank size, delivery threshold, and any missed or delayed ticket posting that contributed to the problem.
From Due List to Truck Route
A due list is not a route. The dispatcher still has to turn a group of due accounts into work a driver can complete safely and profitably.
The first step is to review gallons. Filling every account to the same level may not make sense if it overloads the truck or leaves too little room for later stops. The dispatcher needs estimated gallons by customer, total gallons by route area, and an understanding of truck capacity. Delivering fewer gallons to a few accounts may be reasonable when it allows the driver to cover a concentrated area and return for a planned reload.
Geography matters just as much. A route should generally move through a logical territory rather than bounce from one side of the service area to the other. Local knowledge still counts here. A mapping tool can show distance, but it does not always know about a narrow driveway, a weight-restricted bridge, a school traffic pattern, or a customer who cannot accept delivery until after 10 a.m.
Dispatch should also separate true emergencies from accounts that are simply due. During a cold spell, the board can fill quickly. The right answer is not always to send every due account immediately. Review estimated percentage, customer type, accessibility, and expected weather. An account estimated at 18 percent with a forecasted storm deserves more attention than one estimated at 38 percent in a normal week.
The Records That Make Scheduling Work
Scheduling quality depends on what happens after the delivery. When tickets are posted promptly, the system has the latest delivery date and gallons, which keeps estimated tank levels moving in the right direction. When ticket entry is delayed for days, dispatch is working from stale information.
Every delivery should update the customer record with the date, gallons delivered, price, driver notes, and any issue that affects the next visit. Notes such as “gate locked,” “dog in yard,” “tank relocated,” or “new generator installed” are not minor details. They can affect routing, access, consumption, and customer service.
Customer service staff also need a clean view of account status when the phone rings. If a customer asks when they are due, the office should not have to dig through paper tickets and handwritten route sheets. They should be able to see the last delivery, estimated usage, scheduled status, balance, and service notes in one place.
This is where fuel-specific delivery software earns its keep. Degree Days Online helps propane dealers manage automatic schedules, calendar schedules, daily call-ins, customer records, tickets, and temperature data without forcing the office to maintain separate spreadsheets and manual lists. The value is not fancy software for its own sake. It is fewer missed details between the phone, the dispatch board, the truck, and the customer record.
Common Scheduling Problems to Watch For
Most delivery problems come from a handful of repeat issues, not from a lack of effort. Incorrect tank sizes, stale K factors, late ticket posting, and incomplete customer notes are common causes. So are accounts left on automatic delivery after a customer changes usage or installs new propane equipment.
Weather is another pressure point. A scheduling process that looks fine in October can break down in the first sustained cold period if the office has not reviewed delivery thresholds and truck availability. Dealers should watch the due list early, especially before a holiday weekend or a forecasted storm, rather than waiting for every account to turn urgent.
It also pays to review accounts that repeatedly produce small drops. A route full of 50-gallon deliveries can waste driver time and truck capacity. The answer may be to adjust the delivery threshold, revise the K factor, move the customer to a different route day, or discuss a larger tank where it makes business sense.
Build a Schedule the Office Can Trust
The most effective delivery schedule is not the one with the most automation. It is the one your dispatcher believes is accurate enough to act on every morning. Keep customer records current, post deliveries promptly, use weather data for heating accounts, and give the office a simple way to handle exceptions.
When the next cold front hits, a dependable due list and a workable route plan give your team something better than a stack of paper and a string of urgent phone calls: time to make good decisions before a routine delivery becomes an emergency.