Calculators

Engineering tools for airflow, thermal behaviour and fabrication. Every calculator reads from a saved rig, and overriding a value is a what-if — it never changes the smoker on file.

CALCULATING FORNo smoker saved — save one to skip re-entering

AIRFLOW & DRAFT3 tools

Stack sizingRecommended stack diameter and draft for a chamber, by mass flow rather than volumetric flow.chamber vol · stack ht → Ø in, lb/h, in H₂OFREE

Throat / transfer areaTransfer opening between firebox and cook chamber, sized against chamber volume.chamber vol → sq inFREE · SOON

Altitude correctionCorrects draft and burn figures for thin air. The only smoking calculators that model elevation.elevation · baseline → corrected valuePRO

THERMAL3 tools

Thermal massHeat capacity of the steel — how hard the pit is to move once it settles.wall thk · surface area → BTU/°FFREE · SOON

Misting system sizingNozzle count and flow for evaporative cooling on hot-weather cooks.chamber vol · ambient → GPH, nozzlesFREE · SOON

Fuel burnWood consumption per hour at a target pit temperature, by species and moisture.pit temp · species → lb/h, splits/hPRO · SOON

FABRICATION3 tools

Tank volumeGallons from real tank dimensions — the number every other calculator starts from.Ø in · length in → galFREE · SOON

Baffle & return flueReverse-flow plate clearance and return flue area for even chamber temps.chamber Ø · length → clearance inFREE · SOON

Steel weightPlate and pipe weight for a build, per section — for trailer and axle planning.thk · area → lbFREE · SOON

Pro unlocks the two calculators nobody else has.

Altitude correction and fuel burn, plus telemetry overlay and cross-cook analytics. $9/mo or $90/yr.

See Pro