The heating, ventilation and air conditioning systems of residential and commercial buildings keep people warm and cozy in winter and cool in summer. They also filter the air, removing pollutants and irritants and maintaining humidity levels at optimal comfort levels. HVAC professionals maintain and repair these systems in a variety of settings, including homes, apartments and condos; hospitals, schools, malls, restaurants and office buildings; and industrial and commercial plants.
HVAC service technicians perform routine maintenance heating and air conditioning service on furnaces, ventilators and air conditioners to extend their lifespan and performance. They inspect equipment for safety issues, clean components and replace filters, among other tasks. They are also trained to identify problems that may affect system efficiency and health, such as duct leaks, dirty blowers and unclean or clogged vents. They use their knowledge of building codes, mechanical engineering, physics and thermodynamics to diagnose and fix problems in these complex systems.
An ounce of prevention is worth a pound of cure, and that is why it’s crucial to have your AC unit professionally inspected at least once each year. An inspection of your air conditioner can detect problems that can lead to a breakdown, such as pests invading the interior of the system or electrical parts approaching their end of life. They can also recommend simple fixes, like replacing the air filter and lubricating moving parts.
When your HVAC system is working correctly, you should notice little or no noise and lower electricity bills. However, if your AC seems to be running all the time or frequently shuts off and on, you should call an HVAC expert right away. Other signs that your AC needs servicing include higher than normal energy bills and a noticeable decrease in cooling efficiency.
The best way to prepare for a career as an HVAC technician is by earning an associate degree in refrigeration, heating, ventilation and air conditioning. This type of program will help you understand the nuances of these systems and provide hands-on experience in the lab. In addition, many trade schools, like New England Institute of Technology, offer programs that can lead to certification through North American Technical Excellence (popularly referred to as NATE).
Once you’ve earned your degree and obtained an HVAC apprenticeship, you will work under the supervision of experienced professionals as you learn the trade. This can be challenging because of the physical demands of the job, including lifting heavy objects, using ladders and working in tight spaces. It’s also not uncommon for HVAC technicians to deal with hazardous materials, extreme weather conditions and dangerous machinery.
The most common types of heating services that an HVAC company offers are maintenance, repairs and replacements/installations. Some companies specialize in one of these services, while others are considered “full-service” and will handle all three. When deciding which HVAC service to choose, ask about the different services they provide and their rates. Then, select the one that’s right for you.