How Many Pellets Does a Pellet Grill Use? Pounds Per Hour and Cost Per Cook

The Short Answer

A pellet grill burns roughly 1 to 2 pounds of pellets per hour at 225°F, and 3 to 4 pounds per hour at 400 to 500°F. That means a 20-pound bag covers something like 10 to 20 hours of low-and-slow smoking, or 5 to 7 hours of high-heat cooking, and a 40-pound bag roughly doubles both. For the cook most people care about — a 12-hour brisket at 225-250°F — plan on 15 to 25 pounds, and start with a full hopper.

Those are planning figures, not promises. Temperature is the biggest driver, but cold, wind, lid-opening habits and pellet quality all move the number, sometimes dramatically. Below is the full table by temperature, how long your specific hopper will run, and how to turn all of it into a cost per cook you can actually budget for.

Pellet Consumption by Temperature

Two things to read out of that table. First, the relationship is not linear with temperature — doubling your set point roughly doubles the burn rate, but a hot cook also finishes far sooner, so total pellets used on a dinner is often lower at 400°F than at 225°F. Weber makes exactly this point in its own documentation: there is no exact pellets-per-cook figure, because higher temperatures burn faster but finish quicker.

Second, smoking is the expensive mode by total fuel, not grilling. A 14-hour pork butt at 225°F uses more pellets than a month of weeknight burgers.

How Long Will Your Hopper Run?

Hopper capacity decides whether a long cook is unattended or interrupted. These are the capacities we track, with a mild-weather estimate of unattended run time at 225°F:

Only a few grills have a pellet-level sensor — Weber fits one to the Searwood XL 600 only, and Traeger reserves it for the Woodridge and above. On everything else, look in the hopper before you go to bed. An auger that runs dry does not just pause the cook; it means a cold restart and, on some grills, an error code or a flame-out.

What Pushes Consumption Up

Cold and wind. The big one. Single-wall steel sheds heat fast, and wind strips it faster than cold air alone; the controller answers by feeding more pellets. In severe cold, owners commonly report burning up to roughly double their usual amount. A windbreak and an insulation blanket recover most of it — our cold-weather pellet grilling guide has the full winter routine, and the best pellet grills for cold weather roundup covers insulated builds.

Opening the lid. Every peek dumps the chamber and the controller spends pellets rebuilding it. This is the cheapest habit to fix.

Chamber size. A 1,667-square-inch barrel needs more fuel to hold 225°F than a 594-square-inch one. Bigger grills cost more to run, which belongs in your sizing decision.

Pellet quality and moisture. Damp pellets and bags heavy with fines burn inefficiently, so the auger feeds more of them — and fines are also the leading cause of auger jams. Store pellets sealed and off a damp garage floor.

A dirty grill. Ash in the firepot and grease in the chamber both make the fire and the controller work harder. Our maintenance schedule sets the cadence.

Working Out Your Real Cost Per Cook

The arithmetic is simple enough to do in your head at the shop:

1. Cost per pound = bag price ÷ bag weight.
2. Cost per hour = cost per pound × burn rate from the table above.
3. Cost per cook = cost per hour × hours.

So a 40-pound bag bought at $40 is $1 per pound: smoking at 225°F runs about $1 to $2 an hour, grilling at 450°F about $3 to $4 an hour, and a 12-hour brisket lands somewhere around $12 to $24 in fuel.

The lever that matters most is bag size. 40-pound bags are usually far cheaper per pound than 20-pound bags, so the same money buys more cooking hours. Check the live prices below and divide — the cheapest bag on the shelf is frequently not the cheapest hour of cooking.

Pellets and Storage Worth Buying

Which wood to buy is a separate question from how much — our best wood pellets for smoking roundup ranks the bags, and the wood pellet flavor guide matches species to meat.

Five Ways to Burn Fewer Pellets

1. Keep the lid shut. Trust your probe, not your eyes.
2. Get the grill out of the wind. Free, and the single biggest winter saving.
3. Add an insulation blanket if you cook below about 40°F regularly.
4. Buy dense, dry, 100 percent hardwood pellets in 40-pound bags and keep them sealed.
5. Clean the firepot and vacuum the ash on schedule so the fire burns efficiently.

Frequently Asked Questions

How many pellets does a pellet grill use per hour?

About 1 to 2 pounds per hour at 225°F and 3 to 4 pounds per hour at 400-500°F. A 20-pound bag covers roughly 10-20 hours of smoking or 5-7 hours of grilling.

How many pellets does a 12-hour brisket use?

Plan on 15 to 25 pounds, and start with a full hopper. Cold weather can push that toward double your normal rate.

How long will a 40-pound bag of pellets last?

Roughly 20-40 hours at 225°F, or about 10-13 hours at 400-500°F.

Why is my pellet grill using so many pellets?

Cold and wind first, then lid-opening, a higher set temperature than you realized, damp or low-quality pellets, and a dirty firepot. Severe cold alone can nearly double consumption.

How much does it cost to run a pellet grill per hour?

Bag price ÷ weight × burn rate. At $1 per pound, that is about $1-$2 an hour smoking and $3-$4 an hour grilling. Buying 40-pound bags is the biggest saving available.

Do cheap pellets burn faster than premium ones?

Often, which cancels the saving — more filler, more moisture and more fines mean the auger feeds more to hold temperature, and fines raise jam risk. Compare cost per hour, not cost per bag.

The Bottom Line

Budget 1 to 2 pounds an hour for smoking and 3 to 4 for grilling, check that your hopper covers your longest cook without a refill, and buy pellets in 40-pound bags and keep them dry. Do those three things and pellet consumption stops being a surprise — it becomes a line item you can predict to within a couple of dollars per cook.

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Explore more: Best Wood Pellets for Smoking | Wood Pellet Flavor Guide | Pellet Grill Cold Weather Guide | Pellet Grill Auger Jam | What Size Pellet Grill Do I Need? | Pellet Grill vs Electric Smoker