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What Is Firefighting?

Firefighting is the organized effort to extinguish fires, rescue people and animals from dangerous situations, and respond to emergencies including medical calls, hazardous material incidents, and natural disasters. The United States has approximately 1.1 million firefighters serving about 29,700 fire departments. They respond to roughly 1.4 million fires per year — but fires are actually a shrinking portion of their work. About 65% of fire department calls are now medical emergencies.

What Firefighters Actually Do

The popular image — rushing into a burning building with an axe — captures about 5% of the job. Modern firefighters are emergency generalists.

Fire suppression is the traditional core mission. When a structure fire is reported, firefighters respond with engines (which carry water, hoses, and pumps), trucks (which carry ladders and ventilation equipment), and often a rescue squad. At the scene, they assess the situation, search for occupants, attack the fire with water or foam, ventilate the building to release heat and smoke, and prevent fire spread to neighboring structures.

Emergency medical services dominate most departments’ call volume. Many firefighters are cross-trained as EMTs or paramedics. In many cities, a fire engine arrives at medical emergencies alongside (or instead of) a dedicated ambulance. Cardiac arrests, car accidents, falls, and overdoses make up a large portion of daily calls.

Technical rescue covers specialized situations: people trapped in vehicles (extrication), collapsed buildings, confined spaces (like wells or tanks), water rescues, and high-angle rescues from cliffs or tall structures. These require specialized equipment and training.

Hazardous materials response involves containing and cleaning up chemical spills, gas leaks, and other dangerous substance incidents. Hazmat teams wear specialized protective suits and use detection equipment to identify unknown substances.

Fire prevention is the less glamorous but equally important side. Firefighters conduct building inspections, enforce fire codes, educate the public, and investigate fire causes. The best firefighting is the fire that never starts.

How Fire Suppression Works

Fighting a structural fire follows a general tactical approach, though every fire is different.

Size-up happens first. The incident commander assesses the building type, fire location and extent, smoke conditions, and potential for occupants. This assessment determines the strategy — offensive (going inside to fight the fire directly) or defensive (fighting from outside because conditions are too dangerous for interior operations).

Search and rescue is the top priority. Firefighters enter the building in teams of two or more, searching systematically for occupants. Visibility is often near zero — dense smoke fills rooms floor to ceiling. Firefighters work through by touch, following walls and feeling the floor ahead of them.

Fire attack involves advancing hose lines to the seat of the fire and applying water. A single fire hose can flow 150-200 gallons per minute. Water absorbs heat and converts to steam, cooling the fire environment. But too much water causes water damage — and in enclosed spaces, the steam generated can cause burns.

Ventilation releases heat, smoke, and combustion gases from the building. Firefighters cut holes in the roof (vertical ventilation) or open windows and doors (horizontal ventilation) to channel dangerous conditions away from occupants and firefighters. Timing ventilation wrong can feed oxygen to the fire and cause rapid escalation.

Overhaul happens after the fire is knocked down. Firefighters search for hidden fire extension in walls, ceilings, and attic spaces. A fire that appears extinguished can reignite hours later from smoldering embers in concealed spaces.

The Danger

Firefighting is consistently ranked among the most dangerous occupations. Between 2010 and 2020, an average of 62 firefighters died on duty annually in the U.S. But the leading cause of line-of-duty deaths isn’t fire — it’s heart attacks, which account for about 44% of on-duty deaths. The combination of extreme physical exertion, heat stress, and toxic smoke exposure creates severe cardiovascular strain.

Cancer is an emerging crisis. Firefighters have a 9% higher incidence of cancer diagnoses and a 14% higher cancer mortality rate compared to the general population, according to a National Institute for Occupational Safety and Health study. Exposure to carcinogens in smoke — including benzene, formaldehyde, and polycyclic aromatic hydrocarbons — accumulates over a career. Modern synthetic building materials produce far more toxic smoke than natural materials, making contemporary fires more chemically hazardous than fires 50 years ago.

Mental health is another growing concern. Repeated exposure to traumatic events — deaths, injuries, child abuse — contributes to higher rates of PTSD, depression, and suicide among firefighters. The stigma around mental health in fire service culture is slowly diminishing, but support systems are still inadequate in many departments.

The Station Life

Firefighters typically work 24-hour shifts followed by 48 hours off, though schedules vary by department. During a shift, firefighters live at the station — sleeping, cooking, eating, training, and maintaining equipment together.

The firehouse culture is intensely communal. Crews that eat, sleep, and face danger together develop deep bonds. Meals are communal affairs, with each firefighter contributing to cooking. Equipment checks and maintenance fill downtime between calls.

Training is continuous. Firefighters drill on hose operations, ladder work, search techniques, ventilation, hazmat response, and medical protocols. Departments conduct live fire training in acquired structures slated for demolition, giving firefighters realistic experience in controlled conditions.

Volunteer Crisis

The decline in volunteer firefighters is a quiet emergency. Volunteer numbers dropped from 897,750 in 1984 to about 745,000 in 2020. Several factors drive this: more demanding training requirements, time pressures of modern life, demographic changes in rural communities, and the physical demands of the job.

This decline threatens fire protection in rural and suburban communities that can’t afford career departments. Some areas have response times exceeding 10 minutes — too long for effective fire suppression or cardiac arrest treatment.

Why It Matters

Firefighting is one of the few professions where the primary qualification is willingness to run toward danger while everyone else runs away. The physical courage is obvious. What’s less visible is the emotional toll, the ongoing health risks, and the years of training required to do the job competently.

When you call 911, someone shows up. Quickly. That guarantee — so basic it’s easy to take for granted — exists because firefighters are staffed around the clock, every day, in every community. It’s a system worth understanding and supporting.

Frequently Asked Questions

How long does it take to become a firefighter?

Typically 2-4 years. Most departments require EMT certification (3-6 months), a fire academy program (12-16 weeks), and often an associate's degree in fire science. After hiring, probationary firefighters train on the job for 6-12 months. Competition is intense — large city departments may receive 5,000+ applications for 100 positions.

How much do firefighters earn?

The median salary for firefighters in the U.S. is approximately $51,000 per year as of 2023, though this varies significantly by location. Firefighters in high-cost cities like San Francisco, New York, or Los Angeles can earn $80,000-$120,000+ with overtime. Benefits typically include pension plans, health insurance, and paid time off.

Are most firefighters volunteers?

Yes, surprisingly. About 67% of U.S. firefighters are volunteers — roughly 745,000 out of 1.1 million total. Volunteer departments serve primarily rural and small-town communities. Career (paid) departments serve most cities and suburbs. Volunteer numbers have been declining for decades, creating coverage challenges in many areas.

Further Reading

• FEMA — U.S. Fire Administration
• NFPA — Firefighter Statistics
• International Association of Fire Chiefs