Reconcile nominal timing from one retained kiln controller ramp/hold program, with exact unit references and same-program observed differences.
Built for Pottery1 documented formula4 recommended next stepsPrivate in your browser
Use this result well
A quick decision brief for this specific tool
Inputs that matter
One retained record/revision/program identifier/calculation timestamp; one identified controller manufacturer/model plus applicable manual locator and revision; one explicit controller °C or °F basis and retained starting temperature; 1–12 unique ordered segment names with explicit target temperature, positive rate per hour and nonnegative hold minutes; segment transcription evidence; program owner, reviewer, review date and retention note; optional complete independent same-program observed segment-duration record with method/source/owner/identifier/time/same-program evidence; and seven record/scope/basis/segment/controller/comparison/decision boundaries
Output to expect
Sequential segment starts/targets/directions, exact NIST cross-unit temperature and rate references, nominal ramp and hold minutes per segment and in total, optional observed-minus-nominal segment and total differences, eight nondecisions and source-owned-kiln-ramp-hold-program-timing-reconciliation/v1 record
How it works
For each retained sequential segment calculate nominal ramp minutes = absolute target-minus-prior temperature interval ÷ source-owned positive rate per hour × 60, then add its explicit hold minutes; convert temperature points and intervals between °C/°F with NIST equations; when one complete same-program observed record exists, report signed observed-minus-nominal minutes without a tolerance or correction
Use only one retained program revision, one identified controller/applicable manual and one explicit controller temperature/rate unit. Draft or Tool-invented programs, mixed programs/controllers/revisions, inferred rows/units and partial or different-program comparisons are refused.
Nominal command arithmetic is not actual firing or cooling time. It does not select targets, rates, holds, cone, load, material, glaze, atmosphere or process; convert cones to one fixed temperature; certify heat-work; or infer unlisted delay, preheat, controller behavior, recovery, energy use or cooldown.
The result does not program/start/stop/monitor/troubleshoot a kiln, prescribe installation/electrical/ventilation/PPE/fire controls, certify safety/compliance/equipment fitness/firing outcome, merge the separate firing Tools or create Project/scenario ownership.
Choose your path
Built around the job you need to finish
Transcribe 1–12 explicit ordered ramp/hold segments from one retained kiln controller program/manual revision, calculate nominal commanded duration in one explicit °C or °F basis, optionally compare one complete same-program observed segment-duration record, and refuse schedule, cone, operation, actual-time, material, safety and compliance decisions.
Studio program owner checking one retained controller entry
Reconcile the timing implied by an already reviewed controller program without receiving invented targets, rates, holds, cones or cooldown predictions.
Identify the exact controller and applicable manual revision, transcribe the program identifier, starting temperature and every ordered target/rate/hold row, then inspect nominal segment and total timing plus cross-unit references.
Can trace every duration to the retained controller record while program selection, controller entry, kiln operation and firing outcome remain with the accountable owner and manual.
Production documentation reviewer reconciling a firing log
Compare a complete independent segment-duration log with the same program revision without treating differences as a tolerance, correction or fault diagnosis.
Enable observed comparison, append one observed duration to every retained segment, identify the independent record/method/owner/time and same-program evidence, then review signed segment and total differences.
Gets a reproducible descriptive record while acceptance, maintenance, controller diagnosis, material maturity, quality release and corrective action remain outside the Tool.
Documentation-gap reviewer working on a phone
Stop mixed controllers, unknown manuals, incomplete segments, partial logs and operational requests before arithmetic can be mistaken for a safe firing plan.
Exercise blank, example, heating/cooling, malformed row, duplicate name, invalid date/unit/rate, partial comparison, all seven refusal, stale-result, retained-record and Reset states in the source-defined responsive flow.
Can recover at the owning field and retain only auditable nominal timing without mistaking simulated paths for user research, equipment testing, ceramic engineering, industrial-hygiene or safety approval.
Authoritative checks for this tool
Outputs and checklists are planning aids. Review the linked current authorities and the records, terms, instructions, and requirements that apply to your exact situation before a consequential decision.
Identify the controller manufacturer/model, applicable manual revision, program identifier and one explicit temperature/rate unit. Controller features vary, so the Tool refuses unknown or mixed manual capability.
scope = one program revision + one controller + one unit basis
Calculate sequential nominal time
For each retained row, the prior target becomes the next start. Divide the absolute temperature interval by the positive source-owned rate, convert hours to minutes and add only the explicit hold.
nominal segment min = |target − prior| ÷ rate/hr × 60 + hold min
Keep observation separate
A complete independent log may supply one observed duration for every same-program segment. Signed differences describe the two records; they are not tolerances, corrections, heat-work results or controller diagnostics.
difference min = observed segment min − nominal commanded segment min
Updated: September 2026
Example Scenarios
A program owner copies 1–12 already reviewed controller segments and checks the nominal arithmetic before separately reviewing the actual controller entry and applicable manual.
A documentation reviewer appends one observed duration to every segment from the same program revision and records signed differences without receiving a pass/fail limit or repair instruction.
A reviewer stops when the controller/manual, unit, ordered segment set or same-program evidence is missing, then recovers at the owning field without retaining a stale result.
Common Mistakes to Avoid
✕
Adding a generic cooldown estimate to the program total
✓
Include a cooling segment only when it exists explicitly in the retained controller program. Do not infer natural cooldown or claim a real completion time from one multiplier.
✕
Treating matching arithmetic as firing or safety approval
✓
A matched duration only reconciles records. Keep controller review, cone/heat-work, materials, load, atmosphere, quality, installation, ventilation, electrical, fire and compliance decisions with their responsible evidence and people.
FAQ
No. Targets, rates, holds, order and starting temperature must already belong to one retained program and accountable owner. The Tool supplies timing arithmetic only.
Orton describes cones as heat-work indicators affected by heating rate, hold and atmosphere. A fixed conversion would hide those conditions, so cone selection and interpretation remain outside this record.
No. It includes only the explicit sequential rate intervals and holds. It excludes unlisted delay, preheat, controller adjustments, inability to maintain rate, recovery, natural cooldown and every other real-kiln effect.
Only that the independent logged duration differs from ideal command arithmetic by the displayed minutes. It does not establish tolerance, error, thermocouple condition, maintenance need or acceptable ware.
No. Follow the exact manufacturer/manual and accountable site procedures for programming, review, start/stop, monitoring, errors, installation, electrical service, ventilation, PPE, fire safety and compliance.
About Kiln Firing Schedule Calculator
Transcribe one source-owned controller program without asking the Tool to invent a firing schedule. Each ordered row keeps its target, rate and hold; the result shows nominal commanded timing, exact Celsius/Fahrenheit references and optional descriptive differences from one complete same-program observed-duration log.
