Heat Treatment, Furnaces & Thermal Processing worked example

Furnace Utilization at 98% target furnace utilization: a worked example in heat treatment, furnaces & thermal processing

Push target furnace utilization up to 98% and the picture changes. This example computes every intermediate figure at that operating point. Use it when a furnace, oven, vacuum furnace, or continuous line needs a utilization KPI for capacity review.

The inputs for this scenario

  • Loaded furnace hours: 168 hr (unchanged)
  • Available furnace hours: 200 hr (unchanged)
  • Target furnace utilization: 98 % (raised for this scenario; the documented default is 85)

Working through the calculation

  • Applying the documented formula (Furnace utilization = loaded furnace hours ÷ available furnace hours × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 84 % for furnace utilization, the number this scenario is built around.
  • At this operating point the engine returns 14 points for gap to utilization target.
  • At this operating point the engine returns 168 hr for loaded furnace hours.
  • At this operating point the engine returns 200 hr for available furnace hours.

How this compares with the baseline

  • Against the tool's baseline example, where target furnace utilization sits at 85% and the headline result is 84 %, this scenario lands almost exactly on the baseline at 84 %.
  • It computes the percentage of available furnace hours spent running loaded cycles, plus the point gap to your utilization target. The value of this scenario is the size of the gap it exposes: that gap, priced out over a year, is the budget you can justify spending to close it.

Results at a glance

  • Furnace utilization: 84 % (headline result)
  • Gap to utilization target: 14 points
  • Loaded furnace hours: 168 hr
  • Available furnace hours: 200 hr

Run it with your numbers

  • Every input above is editable in the live Furnace Utilization calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.