Occupations · Production
Stationary Engineers and Boiler Operators
Operate or maintain stationary engines, boilers, or other mechanical equipment to provide utilities for buildings or industrial processes. Operate equipment such as steam engines, generators, motors, turbines, and steam boilers.
O*NET 30.3 Database (USDOL/ETA) · occupation code 51-8021.00
What it pays
A single “average salary” hides the spread. This is the whole distribution — the gap between the bottom and top bar is usually the number that matters.
BLS Occupational Employment and Wage Statistics, May 2024 · national, cross-industry · annual wage
These are national figures, identical for every reader. The report recuts them for your metro area and ranks it among all of them.
Get yours →Pay over time
Median up 73% between 2003 and 2024, before inflation. The band shows the 10th to 90th percentile.
BLS OEWS, one release per year. Before May 2011 only national estimates were published, so geography detail starts there.
Where the jobs are
| Metro area | Median wage | Employed |
|---|---|---|
| New York-Newark-Jersey City, NY-NJ-PA | $103,880 | 3,490 |
| Los Angeles-Long Beach-Anaheim, CA | $69,850 | 2,610 |
| San Francisco-Oakland-Hayward, CA | $124,120 | 1,290 |
| Chicago-Naperville-Elgin, IL-IN-WI | $112,230 | 1,170 |
| Minneapolis-St. Paul-Bloomington, MN-WI | $74,150 | 840 |
BLS OEWS May 2024, metropolitan estimates · the 5 areas with the most people in this occupation
Your metro area, and where it ranks
LockedAll metropolitan areas BLS publishes for this occupation, with your own city's median and its rank among them.
Open in your report →Typical education to enter: High school diploma or equivalent · BLS Employment Projections 2024–34
What people in this job actually do
Ordered by how important the work is rated.
- Operate or tend stationary engines, boilers, and auxiliary equipment, such as pumps, compressors, or air-conditioning equipment, to supply and maintain steam or heat for buildings, marine vessels, or pneumatic tools.
- Activate valves to maintain required amounts of water in boilers, to adjust supplies of combustion air, and to control the flow of fuel into burners.
- Monitor boiler water, chemical, and fuel levels, and make adjustments to maintain required levels.
- Analyze problems and take appropriate action to ensure continuous and reliable operation of equipment and systems.
- Observe and interpret readings on gauges, meters, and charts registering various aspects of boiler operation to ensure that boilers are operating properly.
- Fire coal furnaces by hand or with stokers and gas- or oil-fed boilers, using automatic gas feeds or oil pumps.
- Maintain daily logs of operation, maintenance, and safety activities, including test results, instrument readings, and details of equipment malfunctions and maintenance work.
- Test boiler water quality or arrange for testing and take necessary corrective action, such as adding chemicals to prevent corrosion and harmful deposits.
- Supervise the work of assistant stationary engineers, turbine operators, boiler tenders, or air conditioning and refrigeration operators and mechanics.
- Monitor and inspect equipment, computer terminals, switches, valves, gauges, alarms, safety devices, and meters to detect leaks or malfunctions and to ensure that equipment is operating efficiently and safely.
- Switch from automatic to manual controls and isolate equipment mechanically and electrically to allow for safe inspection and repair work.
- Perform or arrange for repairs, such as complete overhauls, replacement of defective valves, gaskets, or bearings, or fabrication of new parts.
O*NET 30.3 task ratings, importance scale
Skills that matter most
Importance, rated 1 to 5.
O*NET 30.3 skills, importance scale
Software and tools
A dot marks what O*NET flags as in demand.
O*NET 30.3 software skills · hot-technology flag
What your tools are worth
Occupation-based, not posting-based: how much employment, pay and projected growth sit behind each tool. It is not a count of job ads.
| Tool | Value | Spread across occupations |
|---|---|---|
| Microsoft Active Server Pages ASP | 80 | 9 → 49 occupations since 2015 |
| Microsoft PowerPoint | 69 | 400 → 629 occupations since 2015 |
| Microsoft Outlook | 68 | 348 → 642 occupations since 2015 |
What your tools are worth
LockedThe same score for every tool in this occupation, plus the ones you ticked and the ones you did not.
Open in your report →What this work is actually like
Conditions rated against the average across all occupations — only what makes this job different is listed.
O*NET 30.3 Job Zones
Working conditions that stand out
O*NET 30.3 work context, frequency scale · observed 2023-08
How people actually get in
Share of workers by the education they hold.
O*NET 30.2 education, training and experience · observed 2023-08
What kind of person the work suits
Occupational interest profile, rated 1 to 7.
O*NET 30.2 occupational interests (RIASEC)
What you take with you
Skills rated for how well they transfer into other occupations.
O*NET 30.3 transferable skills, importance scale
Knowledge the work draws on
Abilities it leans on
O*NET 30.3 abilities and knowledge, importance scale
How this job is advertised
The same work is posted under many titles — this is what to search for.
O*NET 30.3 job titles reported for this occupation
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What changed since 2015
Comparing O*NET release 20.1 (2015-10-01) with 30.3 (2026-05-01). Signs, not colour alone, carry the meaning. 1 entries that were only relabelled between releases are left out.
Now listed 5
No longer listed 3
Diff across the O*NET releases held here in full since October 2015, following occupations through merges and retirements. O*NET re-surveys occupations on a rolling cycle, so “no change” can also mean “not re-surveyed”.
Related jobs
O*NET 30.3 related occupations
Also called
O*NET 30.3 alternative titles
The same work in Europe
| ESCO occupation | ISCO | Match |
|---|---|---|
| steam engineer | 2144.1.20 | broader |
| boiler operator | 8182.1 | broader |
| steam plant operator | 8182.2 | broader |
Official ESCO ↔ O*NET crosswalk (ESCO Secretariat with USDOL/ETA)
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