Heating, air conditioning, and refrigeration mechanics and installers
SOC Code: 49-9021
Heating, air conditioning, and refrigeration mechanics and installers carries a 26% AI exposure score (Medium automation risk), with a median annual wage of $59,810 and +8.1% projected employment growth from 2024 to 2034 (BLS), affecting approximately 425,200 workers. Full task breakdown, skills, and employer data are below.
Proportion of tasks susceptible to AI automation (O*NET analysis)
At 26% AI exposure, Heating, air conditioning, and refrigeration mechanics and installers sits 11 points below the 37.2% average across 832 U.S. occupations - more exposed than 18% of them. Most of its core tasks still require human judgment.
Career outlook score
74/100
Heating, air conditioning, and refrigeration mechanics and installers, weighted across 3 of 3 tracked dimensions
A weighted composite of median wage, projected growth, and AI-automation security (inverted exposure), each benchmarked against every other tracked occupation. It describes this occupation's standing across those three dimensions, not a guarantee of future outcomes.
- Median wage C- $59,810
Annual median wage, percentile rank vs all tracked occupations
- Projected growth A +8.1%
Projected employment change, 2024-2034, BLS Employment Projections
- AI exposure (inverted) A- 26% exposure
Lower O*NET task-automability scores lower risk; this dimension scores security, not exposure
Home health and personal care aides is #1 of 832 occupations by employment (4.3M, AI exposure rank #392 at 35%) vs. Bookkeeping, accounting, and auditing clerks #1 by AI task exposure (95%, employment rank #17 at 1.6M).
Automation-risk inventory
Exclusive cut of 832 occupations by PlainWorkforce automation-risk band. Orthogonal to the continuous AI-exposure distribution chart below and to this occupation's single risk badge, this is the corpus band mix, with Heating, air conditioning, and refrigeration mechanics and installers in the Medium band.
Credential × growth standing
Associate / award entry with a named growth shelf
Entry credential Associate / award covers 99 of 832 occupations; BLS places this one in Fast growth (67/832). Mid-credential standing - thicker than graduate shelves, thinner than HS-dominated mass.
Where Heating, air conditioning, and refrigeration mechanics and installers sits among all occupations
AI-exposure score distribution across 832 U.S. occupations (O*NET task analysis). This occupation is marked in rose.
Where Heating, air conditioning, and refrigeration mechanics and installers sits by AI exposure
AI-exposure score distribution across U.S. occupations (O*NET task analysis)
26% Among the lowest lower than 82% of 832 occupations
Occupations, banded by AI-exposure score
Each bar is a band; taller bars hold more occupations. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source O*NET task data (U.S. Department of Labor) · BLS 2024–2034
Source: O*NET task data (U.S. Department of Labor); AI-exposure scores are PlainWorkforce's analysis. As of BLS 2024–2034.
Heating, air conditioning, and refrigeration mechanics and installers vs. its occupational neighbors
AI exposure (horizontal) vs projected 2024–2034 growth (vertical) for occupations in the same SOC group. Heating, air conditioning, and refrigeration mechanics and installers is marked in rose; the top-left corner is the most future-proof.
Source: BLS Employment Projections 2024–2034 (growth) and O*NET (AI-exposure analysis by PlainWorkforce).
Employment Projections
Where This Score Comes From
Heating, air conditioning, and refrigeration mechanics and installers's Medium automation-risk tier is computed from O*NET Database 30.0 task-level analysis, where each documented task the occupation performs is evaluated against current generative AI, robotic process automation, and machine-learning capabilities. A score below 40% reflects tasks anchored in physical dexterity, unstructured environments, or high-touch human interaction that current AI cannot reliably replicate.
The employment, wage, and education figures above come from a second, separate federal source: BLS Employment Projections 2024–2034, matched to the O*NET task data by Standard Occupational Classification (SOC 49-9021) code, with the wage figure cross-validated against the BLS Occupational Employment and Wage Statistics (OEWS) May 2024 survey. BLS figures are presented exactly as published, with no adjustment on our part; the SOC-code match is what lets Heating, air conditioning, and refrigeration mechanics and installers be compared directly against every other tracked occupation on the same basis, not just roles that happen to share a job title.
For career planners, this profile should be read alongside the task, skill, and knowledge breakdowns below and the list of employers whose workforce composition includes Heating, air conditioning, and refrigeration mechanics and installers. Adjacent occupations shown further down offer lateral moves that preserve industry knowledge while potentially reducing exposure.
Education & Entry Requirements
Registered Apprenticeship Pathway Available
Heating, air conditioning, and refrigeration mechanics and installers is a recognized registered apprenticeship occupation under the DOL RAPIDS system. Earn while you train, apprentices typically start at ~$16/hr and reach $28–$46/hr upon completion, depending on the specific trade and region.
Top Tasks (O*NET)
- 1. Test electrical circuits or components for continuity, using electrical test equipment.
- 2. Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.
- 3. Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
- 4. Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
- 5. Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.
- 6. Adjust system controls to settings recommended by manufacturer to balance system.
- 7. Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.
- 8. Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.
- 9. Repair or replace defective equipment, components, or wiring.
- 10. Install or repair self-contained ground source heat pumps or hybrid ground or air source heat pumps to minimize carbon-based energy consumption and reduce carbon emissions.
Key Skills Required
- Operations Monitoring
- Critical Thinking
- Troubleshooting
- Reading Comprehension
- Installation
- Repairing
- Active Listening
- Complex Problem Solving
- Quality Control Analysis
- Speaking
Knowledge Areas
- Mechanical
- Building and Construction
- Customer and Personal Service
- Engineering and Technology
- Computers and Electronics
- English Language
- Public Safety and Security
- Design
- Physics
- Mathematics
Frequently Asked Questions
Will AI replace Heating, air conditioning, and refrigeration mechanics and installers?
Heating, air conditioning, and refrigeration mechanics and installers has an AI exposure score of 26%, indicating a medium level of automation risk. The majority of tasks in this role require human judgment, creativity, or physical presence that AI cannot easily replicate.
What is the job outlook for Heating, air conditioning, and refrigeration mechanics and installers?
According to BLS Employment Projections 2024-2034, Heating, air conditioning, and refrigeration mechanics and installers is projected to grow by 8.1% over the decade. Current employment stands at approximately 425,200 workers.
What skills are needed for Heating, air conditioning, and refrigeration mechanics and installers?
Key skills for Heating, air conditioning, and refrigeration mechanics and installers include Operations Monitoring, Critical Thinking, Troubleshooting, and others. Typical entry-level education is Postsecondary nondegree award.
How much do Heating, air conditioning, and refrigeration mechanics and installers earn?
The median annual wage for Heating, air conditioning, and refrigeration mechanics and installers is $59,810, according to BLS Occupational Employment and Wage Statistics (May 2024). Actual earnings vary by location, experience, industry, and employer. The BLS publishes detailed wage percentiles by region in its Occupational Employment and Wage Statistics program.
What education is required for Heating, air conditioning, and refrigeration mechanics and installers?
The typical entry-level education for Heating, air conditioning, and refrigeration mechanics and installers is Postsecondary nondegree award. Employers generally expect None of related work experience. On-the-job training typically involves Long-term on-the-job training. Requirements can vary by employer and specialization.
Which companies employ Heating, air conditioning, and refrigeration mechanics and installers?
Heating, air conditioning, and refrigeration mechanics and installers roles exist across many industries and employers. Workforce composition is estimated from BLS industry-occupation employment distributions matched to SEC-registered public companies.
AI Exposure Rating
Medium automation risk based on 10 analyzed tasks. Most tasks require human judgment and are resistant to automation.
Nationwide occupations with similar workforce profiles
Two data-derived peer sets for Heating, air conditioning, and refrigeration mechanics and installers: AI-exposure neighbors and BLS 2034 growth neighbors (distinct comparison neighborhoods, cross-occupation).
Similar AI exposure score
Nearest O*NET task-automability scores nationwide (26% here).
- Ambulance drivers and attendants, except emergency medical technicians · AI exposure 26%
- Education administrators, kindergarten through secondary · AI exposure 26%
- Forest and conservation technicians · AI exposure 26%
- Nurse practitioners · AI exposure 26%
Similar projected growth (2024–2034)
Nearest BLS employment change rates nationwide (+8.1% here).
- Engineering teachers, postsecondary · growth +8.1%
- Tour and travel guides · growth +8.1%
- Avionics technicians · growth +8.2%
- Computer occupations, all other · growth +8.2%
Peers are nearest-neighbor matches on published BLS + O*NET metrics among occupations with ≥10,000 workers in 2024; corpus ranks above sort the full tracked set.
Related Occupations
Showing 6 of 35 occupations with a comparable automation-risk profile.
What to do with this
Use Heating, air conditioning, and refrigeration mechanics and installers' numbers above to compare, not just read in isolation.
- Compare Heating, air conditioning, and refrigeration mechanics and installers side by side against another occupation on wage, growth, and AI exposure. Workforce comparison tool
- Understand how the AI exposure score above is actually calculated before treating it as a verdict. Reading AI exposure scores
- See the full ranked list of occupations with the lowest automation exposure nationwide. Safest occupations from AI
AI exposure scores estimate task automatability from O*NET data; they are not a certainty of job loss, and BLS growth projections are estimates, not guarantees.
Data sources: Bureau of Labor Statistics Employment Projections 2024–2034 and O*NET Database 30.0. Employment figures are rounded. Wage data from BLS Occupational Employment Statistics (OES).