Heating and air conditioning mechanics and installers perform work familiar to some military personnel.

Jobs in this career are similar to the following job classifications in the

120A
Construction Engineering Technician (Warrant Officer only)
12K
Plumber (Enlisted)
915A
Automotive Maintenance Warrant Officer (Warrant Officer only)
919A
Engineer Equipment Maintenance Warrant Officer (Warrant Officer only)
91C
Utilities Equipment Repairer (Enlisted)
91J
Quartermaster and Chemical Equipment Repairer (Enlisted)