Field glossary

Labor unit

Installed hours assigned to a fixture, a linear foot of pipe, or a fitting

Used across 3 Anvilfield field guides, most in Plumbing.

Also defined as

Electrical: The labor hours to install one item under normal conditions, from the NECA MLU or your own data
HVAC: The labor hours to install one item, from SMACNA, MCAA, or your own job-cost history

Where this shows up