Industrial Heat Pumps & Electrified Thermal Systems worked example

Insulation Labor at 22% fittings, access, and jacketing allowance: a worked example

This worked example runs the insulation labor numbers for a tougher week than the baseline: 22% fittings, access, and jacketing allowance instead of the typical 30%. Estimate insulation labor hours for industrial thermal piping and vessels from work scope, crew productivity, and allowance for fittings, access, and jacketing.

The inputs for this scenario

  • Insulation work scope: 160 sections (held at the documented default)
  • Insulation sections completed per hour: 8 sections / hr (held at the documented default)
  • Fittings, access, and jacketing allowance: 22 % (the input this scenario stresses; the baseline uses 30)

Working through the calculation

  • The calculation starts from the formula this tool documents: Base insulation labor = insulation work scope รท insulation sections completed per hour.
  • Required insulation labor works out to 24.4 hr at these inputs, and this is the headline figure for the scenario.
  • Base insulation labor works out to 20 hr at these inputs.
  • Fittings, access, and jacketing allowance works out to 22 % at these inputs.
  • Insulation sections completed per hour works out to 8 pieces / min at these inputs.

How this compares with the baseline

  • Against the tool's baseline example, where fittings, access, and jacketing allowance sits at 30% and the headline result is 26 hr, this scenario comes in 6.15% below the baseline at 24.4 hr.
  • Use it when bidding or scheduling a mechanical insulation package for heat pump piping, buffer tanks, and headers, or when crew-loading a retrofit. A result at this level usually justifies acting on the stressed input before touching anything else, because every other figure in the table is downstream of it.

Results at a glance

  • Required insulation labor: 24.4 hr (headline result)
  • Base insulation labor: 20 hr
  • Fittings, access, and jacketing allowance: 22 %
  • Insulation sections completed per hour: 8 pieces / min

Run it with your numbers

  • To rerun this with your own numbers, open the live Insulation Labor calculator, set fittings, access, and jacketing allowance to your actual value, and adjust the remaining inputs to match your operation.

Last reviewed 2026-05-12.