HVAC Internship & Apprenticeship Program

Hartzell’s Heat & Air is my family business, and I believe in growing my crew from the ground up. My Internship & Apprenticeship Program gives you real, hands-on experience in the HVAC trade, working side by side with my licensed technicians on actual job sites throughout Central Oklahoma. No experience needed. Just a good work ethic and a willingness to learn.

Program Overview

  • Type: Paid, hands-on internship with path to full apprenticeship
  • Duration: Flexible, I work with your schedule
  • Location: Kingfisher, OK and job sites within 60 miles
  • Registration: Apprentices are registered with the Oklahoma Construction Industries Board (CIB) as required by state law
  • Hours Tracked: On-the-job hours are documented toward your 2,000-hour Oklahoma apprenticeship requirement

What You’ll Learn

You’ll train on real jobs, not in a classroom. My interns ride along with my licensed technicians and learn by doing.

  • Heating SystemsFurnace installation, repair, diagnostics, and gas line safety
  • Cooling SystemsAir conditioning installation, charging, and troubleshooting
  • Ductwork & Sheet MetalCustom ductwork fabrication, fitting, and installation
  • Electrical FundamentalsWiring, controls, capacitors, contactors, and safety
  • Refrigerant HandlingProper procedures, EPA guidelines, and safety protocols
  • System DiagnosticsUsing meters, gauges, and tools to diagnose problems
  • Maintenance & Tune-UpsPerforming seasonal checkups and preventive maintenance
  • Blueprint ReadingUnderstanding plans and specifications for installations
  • Customer CommunicationHow to talk to homeowners and explain the work professionally
  • Workplace SafetyOSHA standards, tool safety, ladder safety, and job site awareness
  • Mobile Home HVACSpecialized skills for manufactured housing systems
  • Oil Field HVACClimate control for field offices and equipment buildings

Who Should Apply

  • High school juniors and seniors looking to start a career in the trades
  • Vo-tech and trade school students (Meridian Tech, Moore Norman, Canadian Valley, etc.)
  • Veterans transitioning to civilian careers
  • Career changers, no prior HVAC experience required
  • Anyone 18+ with a valid driver’s license and reliable transportation

Your Path to a Career

1

Intern

Learn the basics, ride along on jobs, get introduced to the trade

2

Apprentice

Registered with Oklahoma CIB, logging hours, taking on more responsibility

3

Technician

Full-time position with Hartzell’s, running service calls and installs

Why Choose Hartzell’s?

  • Family-owned, family-run, You’re not a number here, you’re part of my crew
  • Paid positionEarn while you learn a skilled trade
  • Real job experienceWork on actual residential, commercial, mobile home, and oil field projects
  • State-recognized hoursYour time counts toward Oklahoma apprenticeship requirements
  • Career pathI promote from within and want to see you grow
  • In-demand tradeHVAC technicians are one of the most needed skilled trades in Oklahoma
  • Work close to homeBased in Kingfisher, serving Central Oklahoma

Ready to Start Your HVAC Career?

Give me a call or stop by my shop in Kingfisher. No resume needed, just come ready to work.

405-375-4822

602 S. Main St., Kingfisher, Oklahoma 73750

Or visit my Careers page for current openings.

Dave Hartzell owner Hartzells Heat Air, internship mentor

Dave went to Autry Technology Center in Enid for his HVAC training. He believes in the vo-tech path and in hiring people who learned by doing, not just by sitting in a classroom.

An internship at Hartzell’s means real jobs, real equipment, and real feedback from someone who has been doing this for 15+ years.


Frequently Asked Questions

Who can apply for the Hartzell’s HVAC Internship Program?

Anyone serious about learning the trade. High school graduates, career changers, military veterans. No prior HVAC experience required. Reliable transportation and a willingness to show up are non-negotiable.

Is the HVAC internship paid?

Yes. Starting hourly pay during the internship, with raises as you pick up skills and certifications. Tools and uniforms provided after the trial period.

How long does the internship last?

Typically 6 to 12 months depending on how fast you progress. Goal is to move you to full-time installer or service tech with EPA 608 certification by the end.

Will Hartzell’s pay for EPA 608 and NATE certification?

Yes. I cover EPA 608 testing for interns who stick with the program. NATE certification gets covered for techs who commit to the long haul.

How do I apply for the HVAC internship?

Submit the application on this page or call 405-375-4822 to set up a shop visit. I prefer to meet candidates in person before making a decision.

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