# HVAC

CEFR C1 · Noun

Source: https://englishreference.com/word/hvac
Updated: 2026-05-11

## Definition

Stands for Heating, Ventilation, and Air Conditioning. The system in a building that controls the temperature and keeps the air fresh.

For teachers: Abbreviation for Heating, Ventilation, and Air Conditioning. Refers to the integrated technology and mechanical systems used to regulate indoor environmental comfort and air quality.

## Examples

- The office building needs a new HVAC system.
- The building manager scheduled a technician to inspect the HVAC unit before the summer heatwave arrived.
- Modern sustainable architecture often integrates passive cooling techniques to reduce the energy load on the building's mechanical HVAC systems during peak hours.

## Usage notes

- Often used as a modifier before another noun, such as 'HVAC system', 'HVAC technician', or 'HVAC industry'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.