1. HVAC Technician
Heating, air conditioning, and refrigeration systems technicians are responsible for installing, maintaining, and repairing those systems. The job is focused on ventilation, indoor air quality, and environmental well-being. Systems in charge of the air conditioning are complex to maintain and install, so the technicians on these duties must have a broad knowledge in the field, and the preparation for the job. The job itself can sometimes be uncomfortable or even dangerous, especially because of rough environment conditions technicians must endure while working (very high or low temperatures).
Average earnings of HVAC technicians ranges from $38K to $55K a year.