HVAC Mechanics and Installers

Construction, Maintenance & Repair

AI exposure

  • Data source: BLSPublished: 2026-08

    Moderate· relative

    LowFour relative bandsVery high

    Group-level value

    Scale, basis and source

    Four relative bands (Low / Moderate / High / Very high)

    831 detailed occupations in the BLS Employment Projections table. Assigned per National Employment Matrix (NEM) code, so occupations sharing a NEM code carry the same band

    Source dataset (XLSX download)

  • Data source: AnthropicPublished: 2026-03

    0.019

    0.000Range of values carried here0.745
    Scale, basis and source

    Observed exposure index, 0–1 as published

    Mapped onto O*NET tasks

    Source dataset

  • Data source: ILOPublished: 2025

    0.21

    0.09Range of values carried here0.70

    Group-level value

    Scale, basis and source

    Generative AI exposure index, 0–1 as published

    ISCO-08 unit group — every occupation sharing the code gets this value

    Computed by this site, not published by the ILO: of the 1,012 occupations this site links to the ILO dataset, 82% score at or above this value.

    Source dataset

What kind of figure this source publishes

The BLS category is a relative rank, not an absolute level, and it is not a first-hand measurement: it groups an occupation's percentile ranks across several published studies into four bands. It is not an employment or wage forecast, not a probability of adoption, and it does not separate automation from augmentation.

Task-level exposure

Exposed tasks only

Values in this tab are predicted labels, not observations. Eloundou et al. (2023) published two rating regimes — human raters and GPT-4 — and the β shown here is derived from the GPT-4 rater basis alone; the same task can take a different value under the other regime. The unit and the meaning differ from the observed shares (%) in the other tabs, so do not place them on the same axis.

TaskβE1 + 0.5 × E2
Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders.

O*NET Task ID 23563

1.0
Keep records of repairs and replacements made and causes of malfunctions.

O*NET Task ID 23572

1.0
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.

O*NET Task ID 23558

0.5
Schedule work with customers and initiate work orders, house requisitions, and orders from stock.

O*NET Task ID 23575

0.5
Test electrical circuits or components for continuity, using electrical test equipment.

O*NET Task ID 23552

0.0
Repair or replace defective equipment, components, or wiring.

O*NET Task ID 23553

0.0
Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.

O*NET Task ID 23554

0.0
Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.

O*NET Task ID 23555

0.0
Install, connect, or adjust thermostats, humidistats, or timers.

O*NET Task ID 23556

0.0
Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.

O*NET Task ID 23557

0.0
Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers.

O*NET Task ID 23559

0.0
Braze or solder parts to repair defective joints and leaks.

O*NET Task ID 23560

0.0
Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.

O*NET Task ID 23561

0.0
Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.

O*NET Task ID 23562

0.0
Perform mechanical overhauls and refrigerant reclaiming.

O*NET Task ID 23564

0.0
Adjust system controls to settings recommended by manufacturer to balance system.

O*NET Task ID 23565

0.0
Install expansion and control valves, using acetylene torches and wrenches.

O*NET Task ID 23566

0.0
Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms.

O*NET Task ID 23567

0.0
Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.

O*NET Task ID 23568

0.0
Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills.

O*NET Task ID 23569

0.0
Mount compressor, condenser, and other components in specified locations on frames, using hand tools and acetylene welding equipment.

O*NET Task ID 23570

0.0
Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools.

O*NET Task ID 23571

0.0
Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems.

O*NET Task ID 23573

0.0
Estimate, order, pick up, deliver, and install materials and supplies needed to maintain equipment in good working condition.

O*NET Task ID 23574

0.0
Supervise and instruct assistants.

O*NET Task ID 23576

0.0
Lay out reference points for installation of structural and functional components, using measuring instruments.

O*NET Task ID 23577

0.0
Lift and align components into position, using hoist or block and tackle.

O*NET Task ID 23578

0.0
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.

O*NET Task ID 23579

0.0
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.

O*NET Task ID 23580

0.0
Test pipes, lines, components, and connections for leaks.

O*NET Task ID 23581

0.0

β = E1 + 0.5 × E2 · E1 = tasks where direct LLM access alone cuts time by at least 50%, E2 = tasks where software built on top of an LLM cuts time by at least 50%. Values take only 0 / 0.5 / 1.0.

Data sources & licenses — O*NET®, Eloundou et al. (2023): see full notices on the Credits page

Occupation information