Traeger

Pro 780 specs

Specs only. No invented smoke scores, no fake temperature graphs. If a number looks wrong for your exact SKU, trust the manual.

Traeger Pro 780 black pellet grill, front three-quarter view — Traeger product photo

Estimate pellets for this hopper Back to the list

Brand: Traeger
Listed cooking area: 780 sq in
Listed hopper: 18 lb
WiFi: Yes
Sear: No
Sear notes: Same controller family as the Pro 575. Larger barrel, same 18 lb hopper.
Street price band: $800 to $1,200
Listed warranty: 3 years per the product page. Traeger's warranty policy page lists up to 7 years, tiered by part. Check your serial number.
Listed temp range: 165 to 500
Listed max temp: 500 F manufacturer ceiling, not a chamber probe reading
Overnight run at 225 F: ~16.8 hr, mild weather. Listed hopper minus the 0.35 lb startup pad, divided by the PelletDeck 225 F burn assumption. Same formula the calculator runs, so a colder night or a hotter set point comes out shorter. Not a lab overnight test.
Listed weight: 150 lb
Controller: WiFIRE
Availability note: Current-line or commonly sold name
Spec source: Traeger listed specs. Weight varies by revision. Warranty sources disagree: the product page FAQ says 3 years (https://www.traeger.com/pellet-grills/pro/780), while the Traeger warranty policy lists a 7-year limited warranty for D2 WiFIRE grills made after October 2021, tiered by part (https://www.traeger.com/service-warranty).
Calculator burn assumption: 1.05 lb/hr at 225 F. Planning number only. Not a lab test.

Hopper hours and pellets per cook

A 12 lb brisket at 225 F plans at about 16 hr 30 min, but in winter a full 18 lb hopper runs only about 8 hr, so an overnight brisket needs a refill around hour 8. In mild weather the same cook uses about 17.7 lb and finishes with only about 0.3 lb left, a margin thin enough that the calculator flags it.

How long a full 18 lb hopper runs on the Traeger Pro 780, after the 0.35 lb startup pad. Burn starts at the 1.05 lb/hr assumption at 225 F and scales with set point and weather, the same math as the calculator.
Set point	Mild (about 60 to 80 F)	Winter / sub-freezing
225 F	16 hr 49 min at 1.05 lb/hr	8 hr at 2.21 lb/hr
250 F	14 hr 49 min at 1.19 lb/hr	7 hr 3 min at 2.50 lb/hr
275 F	13 hr 13 min at 1.34 lb/hr	6 hr 17 min at 2.81 lb/hr

Same 18 lb hopper elsewhere in our database: the Camp Chef SmokePro DLX 24 (about 19 hr 37 min), the Traeger Pro 575 (about 19 hr 37 min), and the Z Grills 450B (about 27 hr 9 min), counting a full hopper at 225 F in mild weather on each grill's own assumed burn rate.

Pounds of pellets for two common cooks on the Traeger Pro 780, startup pad included. Cook time is the calculator's planning estimate for the meat and set point.
Cook	Planned time	Mild (about 60 to 80 F)	Winter / sub-freezing
12 lb brisket at 225 F	16 hr 30 min	17.7 lb	36.7 lb (more than a full hopper)
8 lb pork butt at 250 F	10 hr 42 min	13.1 lb	27.1 lb (more than a full hopper)

Those pounds include the startup pad and assume a full hopper at the start. For how meat, set point, and bag size change the total, see how many pounds of pellets a smoke really takes.

Each pellet figure opens that cook in the calculator with the Traeger Pro 780 already picked, or run the winter brisket for this grill in the calculator and change the weight, temp, or weather yourself. Wind, wet pellets, and a leaky lid are not in the math, and they usually burn more.

Notes

More grate, same pellet tank. A long cold cook on this size is a refill problem more than a space problem.

PelletDeck did not run this grill in a lab. The burn assumption exists so the calculator has a starting point. Override hopper size if your unit differs.