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Stationary Engineers and Boiler Operators

Typical education: Certificate or apprenticeshipHigh pressure

What they do

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.

Kinds of work

  • Realistic: Hands-on work with tools, machines, plants or animals, often outdoors.
  • Conventional: Organizing information, following clear procedures and working with data and details.

High pressure: How much pressure workers in this job report: deadlines, conflict, dealing with upset people, the cost of mistakes, responsibility for others' safety, competition and long hours. It varies a lot from one employer to the next. Source: U.S. Department of Labor worker surveys.

Pay, tasks and more

Salary

United States $78,620 Median per year · $37.80/hr Most earn $50,590–$125,390

BLS Occupational Employment and Wage Statistics, 2025.

What you might do

  • Fire coal furnaces by hand or with stokers and gas- or oil-fed boilers, using automatic gas feeds or oil pumps.
  • Weigh, measure, and record fuel used.
  • Clean and lubricate boilers and auxiliary equipment and make minor adjustments as needed, using hand tools.
  • Check the air quality of ventilation systems and make adjustments to ensure compliance with mandated safety codes.
  • Receive instructions from steam engineers regarding steam plant and air compressor operations.
  • Ignite fuel in burners, using torches or flames.

Job outlook

United States
3% more jobs by 2035, about as fast as average · about 3,200 openings a year

Openings include new jobs and jobs left by workers who retire or change careers. Projections: U.S. Bureau of Labor Statistics. "Bright Outlook": U.S. Department of Labor.

Where they work

  • General medical and surgical hospitals16.3%
  • Local government, excluding education and hospitals11.0%
  • Colleges, universities, and professional schools10.9%
  • State government, excluding education and hospitals6.6%
  • Crop production4.4%

Share of all workers in this career. Source: U.S. Bureau of Labor Statistics, National Employment Matrix.

Experience before this job: 2 to 4 years

Some people start through an apprenticeship: paid training on the job, often with classes. Search apprenticeships on Apprenticeship.gov (opens in a new tab) ↗

Career path

How people usually get into this career, from school to their first job and beyond.

Typical education: Certificate or apprenticeshipExperience before this job: 2 to 4 years

Stationary engineers usually aren't hired straight out of school. Most people start with a high school diploma, gain 2 to 4 years of hands-on mechanical or power experience, and then move into this work, often through an apprenticeship or certificate program.

  1. High school diploma or GED (with math, physics, and shop classes)

    4 years

    Strong math and physics skills help you understand pressure, heat, and how machines work, which you'll use every day as an engineer.

  2. HVAC Technician

    2-4 years

    Working on heating, cooling, and ventilation systems, often while in a certificate or apprenticeship program, teaches you the mechanical systems, controls, and safety habits that boiler and plant work depends on.

  3. Stationary Engineer and Boiler Operator

    Ongoing after 2-4 years of experience

    You run and maintain boilers, engines, pumps, and other equipment that supply heat, power, or steam to buildings or factories. Many states require a license for this work, so check the rules where you live.

Where it can lead

  1. Chief Stationary Engineer

    3-5 years of experience first

    You become the lead for a plant's engineers, planning maintenance, training others, and handling larger systems. Moving up usually takes more experience, strong troubleshooting skills, and often a higher-level license.

  2. Facilities Manager

    5-10 years of experience first

    You oversee the building or plant as a whole, including budgets, contractors, staff, and long-term planning. This role often asks for management experience and sometimes a bachelor's degree.

What you can do now

Ideas for high school and college students.

In high school

  • Take math, physics, and shop classesThese classes build the problem-solving and mechanical basics that stationary engineers use every day.
  • Join a technical or robotics clubBuilding and fixing things with a team gives you hands-on practice and shows future employers you like mechanical work.
  • Get a summer job doing maintenance or helper workWork at a farm, factory, school, or apartment complex can teach you tools, safety, and how equipment is kept running.
  • Talk with a career or shop teacher about trade programsThey can tell you which local programs or apprenticeships lead to this career and what grades or classes they expect.
  • Learn basic safety and tool skills at homeHelping with home repairs or small engine work builds confidence and a feel for how machines operate.

In college

  • Enroll in a certificate program in HVAC, industrial maintenance, or facilities technologyA certificate at a community college or trade school builds the mechanical and electrical skills that apprenticeships ask for.
  • Take courses in thermodynamics, fluid mechanics, or electrical systems if your school offers themThese topics explain how boilers, steam, and engines work, which helps you understand the equipment you'll run.
  • Work as a maintenance or building helper on campus or in townA campus or part-time job gives you real equipment experience and a reference for future applications.
  • Apply to a registered apprenticeship programApprenticeships combine paid on-the-job training with classroom learning, which is a common way into this career.
  • Learn about safety certifications and licensing requirementsKnowing which safety credentials and state licenses apply to stationary engineers helps you plan your training early.

Tips for getting started

  • Take every math and physics class you can, and ask about shop or vocational programs at your school. These skills show up on apprenticeship applications.
  • Look for a summer or part-time job in maintenance, construction, or a factory. Even general helper work shows employers you're reliable and interested in mechanical work.
  • Check what license or apprenticeship rules apply in your state or region, since they set how you get trained and certified.

Related jobs that often lead here

Education, experience and related careers: U.S. Department of Labor. The step-by-step path, where it can lead and what you can do now were written by AI as typical examples; many people take other ways.

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