Talk to the counselor at your local high school. Colleges and technical schools send brochures and information packets to high schools in the hopes that counselors will pass the information along to students or other interested parties. Counselors also have access to databases and directories of schools that offer HVAC programs. Make an appointment to discuss your HVAC goals with a counselor.
If you find yourself contemplating a HVAC career after high school, check with your local career center. Career center representatives are trained in pairing you with a program that will meet your goals. They'll steer you toward local technical or trade schools, a community college or specialty HVAC programs. Career centers have the inside scoop on technical internships and apprenticeships and often are the only types of place to get such information.
Many websites offer listings of schools with HVAC programs. Check out the HVAC Training Schools Directory (http://www.trade-schools.net/directory/hvac-schools-directory.asp) or HVAC Training Directory of Schools (http://www.directoryofschools.com/Heating-Ventilation-Air-Conditioning-and-Refrigeration-School.htm). Also worth looking into is HVAC Technical Institute, a Chicago-based campus focused solely on this trade. When looking at schools online, be sure to request all pertinent information. Your chosen schools will send you details on coursework, campus living and financial aid.
Schedule campus visits with your top-choice schools. Being on campus gives you a much better idea of the school's culture and is key in making a selection this important. This is your future---take pride in it and make a well-informed decision.