PelletDeck

Pit Boss

Lexington 500 specs

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

Pit Boss Lexington 500 Onyx Edition pellet grill, front view
Pit Boss product photo (Lexington 500 Onyx Edition) Current Lexington 500 Onyx Edition studio photo. Same 500-class Lexington body as the common listing.
Brand
Pit Boss
Listed cooking area
543 sq in
Listed hopper
15 lb
WiFi
No
Sear
Yes
Sear notes
Entry Pit Boss with Flame Broiler. No app on the common SKU.
Street price band
Under $500
Listed warranty
5-year limited (typical current listing)
Listed temp range
180 to 500
Listed max temp
500 F manufacturer ceiling, not a chamber probe reading
Overnight run at 225 F
~19.5 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
90.4 lb
Controller
Digital
Availability note
Current-line or commonly sold name
Spec source
Pit Boss Onyx Edition product page and PB500NX manual: 543 sq in total (387.8 main grate plus 155.2 upper rack). The older PB500LXW1 manual lists 540.5. Hopper is 15 lb per the Pit Boss product page and owner's manuals. PB500NX owner's manual lists 90.4 lb: https://images.salsify.com/image/upload/ce5eb3539eb334cee929e3b2d90a7f85600a5e61.pdf
Calculator burn assumption
0.75 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 15 lb hopper runs only about 9 hr 18 min, so an overnight brisket needs a refill around hour 9. In mild weather the same cook uses about 12.7 lb and finishes with only about 2.3 lb left, a margin thin enough that the calculator flags it.

How long a full 15 lb hopper runs on the Pit Boss Lexington 500, after the 0.35 lb startup pad. Burn starts at the 0.75 lb/hr assumption at 225 F and scales with set point and weather, the same math as the calculator.
Set pointMild (about 60 to 80 F)Winter / sub-freezing
225 F19 hr 32 min at 0.75 lb/hr9 hr 18 min at 1.58 lb/hr
250 F17 hr 13 min at 0.85 lb/hr8 hr 12 min at 1.79 lb/hr
275 F15 hr 21 min at 0.95 lb/hr7 hr 19 min at 2.00 lb/hr

Same 15 lb hopper elsewhere in our database: the Recteq RT-B380 Bullseye (about 24 hr 25 min), counting a full hopper at 225 F in mild weather on that grill's own assumed burn rate.

Pounds of pellets for two common cooks on the Pit Boss Lexington 500, startup pad included. Cook time is the calculator's planning estimate for the meat and set point.
CookPlanned timeMild (about 60 to 80 F)Winter / sub-freezing
12 lb brisket at 225 F16 hr 30 min12.7 lb26.3 lb (more than a full hopper)
8 lb pork butt at 250 F10 hr 42 min9.5 lb19.5 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 Pit Boss Lexington 500 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

Small hopper. Fine for chicken and ribs. Overnight packer brisket in January is a stretch.

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.