AI exposure by occupation, O*NET 49-9021.00

Will AI replace Heating, Air Conditioning, and Refrigeration Mechanics and Installers?

Heating, Air Conditioning, and Refrigeration Mechanics and Installers: AI can already handle 5 of 30 tasks; the work mostly needs an efficient-tier model.

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Every task, scored

The 30 tasks O*NET 30.3 lists for Heating, Air Conditioning, and Refrigeration Mechanics and Installers, from most to least exposed. 5 reach 60 or more, the level at which AI already handles a task.

Task AI exposure Evidence Model tier Importance
Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions. 80 Estimated Standard 4.4
Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions. 80 Estimated Frontier 4.2
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. 60 Estimated Efficient 4.4
Adjust system controls to settings recommended by manufacturer to balance system. 60 Estimated Efficient 4.3
Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters. 60 Estimated Frontier 4.2
Repair or replace defective equipment, components, or wiring. 20 Estimated Efficient 4.2
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. 20 Estimated Efficient 4.2
Install, connect, or adjust thermostats, humidistats, or timers. 20 Estimated Efficient 4.1
Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers. 20 Estimated Efficient 4.1
Braze or solder parts to repair defective joints and leaks. 20 Estimated Efficient 4.1
Install expansion and control valves, using acetylene torches and wrenches. 20 Estimated Efficient 4.0
Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms. 20 Estimated Efficient 3.9
Keep records of repairs and replacements made and causes of malfunctions. 20 Estimated Efficient 3.8
Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills. 20 Estimated Efficient 3.8
Estimate, order, pick up, deliver, and install materials and supplies needed to maintain equipment in good working condition. 20 Estimated Efficient 3.8
Lay out reference points for installation of structural and functional components, using measuring instruments. 20 Estimated Efficient 3.5
Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems. 20 Estimated Efficient 3.3
Repair or service heating, ventilating, and air conditioning (HVAC) systems to improve efficiency, such as by changing filters, cleaning ducts, and refilling non-toxic refrigerants. 20 Estimated Efficient 3.0
Test electrical circuits or components for continuity, using electrical test equipment. 15 Estimated No tier 4.6
Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit. 15 Estimated No tier 4.3
Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools. 15 Estimated No tier 4.0
Perform mechanical overhauls and refrigerant reclaiming. 15 Estimated No tier 4.0
Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools. 15 Estimated No tier 3.9
Mount compressor, condenser, and other components in specified locations on frames, using hand tools and acetylene welding equipment. 15 Estimated No tier 3.9
Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders. 15 Estimated No tier 3.9
Schedule work with customers and initiate work orders, house requisitions, and orders from stock. 15 Estimated No tier 3.7
Supervise and instruct assistants. 15 Estimated No tier 3.6
Test pipes, lines, components, and connections for leaks. 15 Estimated No tier 3.0
Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area. 12 Estimated No tier 4.5
Lift and align components into position, using hoist or block and tackle. 8 Estimated No tier 3.5

Observed: scored from AI use recorded in the Anthropic Economic Index (June 2026 release), 0 of 30 tasks. Estimated: scored from the task's O*NET 30.3 work activity, 30 of 30. Importance is O*NET's 1 to 5 rating of how central the task is. Model tier is the lowest tier that can do the task under the published rubric; "No tier" marks hands-on work.

The model tier this role needs

An efficient-tier model or lower covers 49% of the role's importance-weighted task work. 60% of the work is something AI can address at some tier, and 40% is hands-on.

Efficient, standard and frontier tiers come from the JobRoute model tier reference. The recommended tier is the lowest one that covers 80% of the work AI can address. How the method works.

Wages, employment and outlook

US employment
409,670
Median annual wage
$61,010
Middle half of earners
$48,360 to $77,060
Projected change, 2024 to 2034
+8.1%

Employment and wages: BLS Occupational Employment and Wage Statistics, May 2025, national. Projection: BLS Employment Projections 2024 to 2034.

Adjacent roles

The occupations that reuse the most of this role's skills, with the usual time to move. These are the first places to look when you plan to redeploy or retrain people in this role.

Skill overlap and transition time from the JobRoute role adjacency graph on O*NET 30.3 skills.

Questions about Heating, Air Conditioning, and Refrigeration Mechanics and Installers and AI

Will AI replace Heating, Air Conditioning, and Refrigeration Mechanics and Installers?

AI already handles 5 of the 30 tasks O*NET lists for this occupation, at a task exposure of 60 or more, and the role's importance-weighted exposure is 27 out of 100. JobRoute scores tasks, not whole jobs, so the score shows how much of the work changes rather than whether the job disappears. BLS projects employment to change by +8.1% from 2024 to 2034.

What is the AI exposure of Heating, Air Conditioning, and Refrigeration Mechanics and Installers?

27 out of 100 on JobRoute's task exposure measure, the importance-weighted average of the role's O*NET task scores. Higher means more of the work is AI-doable today. 0 of the 30 task scores are observed in the Anthropic Economic Index (June 2026 release), and the other 30 are estimated from each task's O*NET work activity.

Which Heating, Air Conditioning, and Refrigeration Mechanics and Installers tasks can AI already do?

The tasks with the highest exposure are: Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions; Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions; 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. They are three of the 5 tasks that reach 60 or more.

What AI model tier does this role need?

An efficient-tier model or lower covers 49% of the role's importance-weighted task work, and 40% is hands-on work that no model tier covers. JobRoute assigns each task the lowest tier that can do it under a published rubric and recommends the lowest tier that covers 80% of the work AI can address.

How many people work as Heating, Air Conditioning, and Refrigeration Mechanics and Installers, and what do they earn?

409,670 people in the United States, with a median annual wage of $61,010 (BLS Occupational Employment and Wage Statistics, May 2025). BLS Employment Projections expect a change of +8.1% from 2024 to 2034.

How to cite

Data version 2026-11-02, JobRoute method v1.0.0. Download all occupations or this occupation as JSON. Methodology.

JobRoute (2026). AI exposure: Heating, Air Conditioning, and Refrigeration Mechanics and Installers. Data version 2026-11-02, method v1.0.0. Built on O*NET 30.3, BLS OEWS May 2025 and the Anthropic Economic Index (June 2026). CC BY 4.0. https://www.jobroute.ai/jobs/heating-air-conditioning-and-refrigeration-mechanics-and-installers

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