Stationary Engineers and Boiler Operators
Stationary engineers and boiler operators control stationary engines, boilers, or other mechanical equipment.
Is stationary engineers and boiler operators a good career?
It scores 17/100 and ranks #412 of 825 occupations on pay, growth, employment and openings. Here's what the federal data says, with no editorializing.
Advantages
- Pays well above the U.S. median wage ($78,620 vs $61,390)
- No college degree typically required to enter
Possible tradeoffs
- Slower-than-average projected growth (+2.2%)
What stationary engineers and boiler operators earn
Wages: BLS OEWS May 2025Pay is a range, not a number. Half of U.S. stationary engineers and boiler operators earn between $63,160 and $101,150 a year.
Best-paying states
Best-paying metros
Strongest employment concentration
Live stationary engineers and boiler operators jobs
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- Typical education
- High school diploma or equivalent
- Work experience
- None
- On-the-job training
- Long-term on-the-job training
- Outlook
- Employment is projected to grow slower than average through 2034.
Education
Stationary engineers and boiler operators need at least a high school diploma. Students should take courses in math, science, and mechanical and technical subjects.
With the growing complexity of the work, vocational school or college courses may benefit workers trying to advance in the occupation.
Training
Stationary engineers and boiler operators typically learn their work through long-term on-the-job training under the supervision of an experienced engineer or operator. Trainees are assigned basic tasks, such as monitoring the temperatures and pressures in the heating and cooling systems and low-pressure boilers. After they demonstrate competence in basic tasks, trainees move on to more complicated tasks, such as the repair of cracks or ruptured tubes for high-pressure boilers.
Some stationary engineers and boiler operators may complete apprenticeship programs. Apprenticeships usually last 4 years, include 8,000 hours of on-the-job training, and require 600 hours of technical instruction. Apprentices learn about operating and maintaining equipment; using controls and balancing heating, ventilation, and air-conditioning (HVAC) systems; safety; electricity; and air quality. Employers may prefer to hire these workers because they usually require considerably less on-the-job training. However, because of the limited number of apprenticeship programs, employers often have difficulty finding workers who have completed one.
Experienced stationary engineers and boiler operators update their skills regularly through training, especially when new equipment is introduced or when regulations change.
Licenses, certifications & registrations
Some state and local governments require licensure for stationary engineers and boiler operators. These governments typically have several classes of stationary engineer and boiler operator licenses. Each class specifies the type and size of equipment the engineer is permitted to operate without supervision. Many employers require stationary engineers and boiler operators to demonstrate competency through licenses or company-specific exams before they are allowed to operate the equipment without supervision.
A top-level engineer or operator is qualified to run a large facility, supervise others, and operate equipment of all types and capacities. Engineers and operators with licenses below this level are limited in the types or capacities of equipment they may operate without supervision.
Applicants for licensure usually must meet experience requirements and pass a written exam. In some cases, employers may require that workers be licensed before starting the job. A stationary engineer or boiler operator who moves from one state or city to another may have to pass an examination for a new license because of regional differences in licensing requirements.
Advancement
Generally, stationary engineers and boiler operators can advance as they become qualified to operate larger, more powerful, and more varied equipment by obtaining higher class licenses. In jurisdictions where licenses are not required, workers usually advance by taking company-administered exams, ensuring a level of knowledge needed to operate different types of boilers safely.
Important qualities
Detail oriented. Stationary engineers and boiler operators monitor intricate machinery, gauges, and meters to ensure that everything is operating properly.
Dexterity. Stationary engineers and boiler operators must use precise motions to control or repair machines. They grasp tools and use their hands to perform many tasks.
Mechanical skills. Stationary engineers and boiler operators must know how to use tools and work with machines. They must be able to repair, maintain, and operate equipment.
Problem-solving skills. Stationary engineers and boiler operators must figure out how things work and quickly solve problems that arise with equipment or controls.
Related occupations
How much do stationary engineers and boiler operators make?
The national median wage is $78,620 a year, with the middle half earning between $63,160 and $101,150 (BLS OEWS May 2025).
Is stationary engineers and boiler operators a good career?
On the Jobs.best index it scores 17 of 100 and ranks #412 of 825 occupations, weighing pay, growth, employment and openings. Employment is projected to change +2.2% through 2034.
What education do you need to become a stationary engineers and boiler operator?
The typical entry-level education is high school diploma or equivalent.
Where do stationary engineers and boiler operators earn the most?
Among states, Illinois pays the highest median ($115,780). Local pay for every state and metro is below.