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Tech Tips:

Revisiting the Bull in a China Shop: Oversized Equipment

This article is an updated version of another HVAC School article on oversized equipment. This edition is a joint effort by Genry Garcia of Comfort Dynamics, Inc. and Kaleb Saleeby. Both of them are regular contributors to HVAC School, and we are grateful for their contributions. Thanks, guys! The symptoms and consequences of oversized heating […]

Q&A System Oversizing – Short #291

In this short Q&A podcast episode, Bryan answers a question from Evan, a licensed mold assessment consultant, about system oversizing: What can be done to control humidity and keep occupants comfortable when an HVAC system is oversized? The extent of the problem will depend on how badly the equipment is oversized, whether it has any turn-down […]

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HVAC School – For Techs, By Techs

Real training for HVAC ( Heating, Ventilation, Air Conditioning and Refrigeration) Technicians. Including recorded tech training, interviews, diagnostics and general conversations about the trade.

In this episode, Bryan welcomes back Trevor Matthews from Refrigeration Mentor for a conversation focused entirely on nailing a job interview in the HVAC and refrigeration trades — whether it’s a technician’s very first shot at breaking into the industry or an experienced tech looking to move to a new company or specialty. Trevor opens up about his own rocky start, admitting he cycled through roughly 25 different jobs before landing in refrigeration and that he struggled with confidence in early interviews because he assumed he needed a deep resume of experience. What actually got him hired, he says, was being coachable: showing up willing to learn and do what was asked, even if that meant starting by sweeping floors.

For technicians just entering the trade, Bryan and Trevor lay out a practical playbook. Research the company before reaching out — knowing what services they offer, how long they’ve been in business, and what type of work they do builds instant trust. Cast a wide net rather than sending out only a handful of applications, and don’t get discouraged by rejection; both hosts stress “pleasant persistence” as the key to standing out, following up warmly without becoming a nuisance. Trevor shares a story about motivational speaker Les Brown showing up at a radio station day after day until he finally got a chance, as a reminder that repeated, respectful effort pays off. They also recommend creative approaches like recording a video resume tailored to a specific company, and getting ahead on certifications such as EPA 608, confined space, first aid, or defensive driving before ever applying, since these small credentials can make a hiring manager’s decision much easier.

The conversation then shifts to technicians pursuing their next opportunity rather than their first. Bryan explains that many larger companies route candidates through HR before they ever speak with a service manager, and that each conversation requires a different tone: HR wants to hear about safety, a clean driving record, and reliability, while a service manager wants to know how you’ll bring value to customers and the team. Both agree that driving records have become a surprisingly major factor in hiring, given how much liability and cost a company takes on with every vehicle on the road. They also encourage candidates to ask people already working at a company for an internal referral, since a warm introduction dramatically increases the odds of getting hired, and many companies even offer referral bonuses that make current employees eager to help.

Finally, Trevor and Bryan get tactical about interview performance itself. They recommend using AI tools to generate likely HR and technical interview questions, then practicing out loud with a spouse or friend to shake off the “rust” of not having interviewed in years. Confident humility comes up repeatedly: it’s far better to admit “I don’t know that term” than to bluff, and to speak with genuine curiosity about the trade rather than reciting a list of accomplishments. Trevor illustrates how a candidate can talk through a hypothetical service call step by step to demonstrate real troubleshooting knowledge, even without hands-on experience in that specific niche. The pair close by touching on soft skills like conflict resolution and building good relationships with dispatch, and Trevor shares where listeners can connect with the Refrigeration Mentor community for more training and support.

Topics Covered

Why Trevor initially struggled with confidence in early job interviews
Researching a company before applying or interviewing
Casting a wide net and using “pleasant persistence” instead of giving up after a few no’s
Standing out with a tailored video resume
Getting certifications early: EPA 608, confined space, first aid, defensive driving
Why driving records and vehicle safety matter so much to HVAC/R employers
The difference between talking to HR versus a service manager
Asking a current employee for an internal referral
Avoiding negativity about past employers during interviews
Using AI to prepare likely interview questions, then practicing with a real person
Confident humility: admitting what you don’t know instead of bluffing
Demonstrating resourcefulness through podcasts, courses, and industry resources
Talking through a hypothetical service call to show troubleshooting ability
Soft skills, conflict resolution, and building relationships with dispatch
Trevor’s own story of landing his first refrigeration job in Australia
Where to connect with Trevor and the Refrigeration Mentor community

Learn more about all the great resources Trevor offers through Refrigeration Mentor at https://refrigerationmentor.com/.

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Nailing a Job Interview w/ Refrigeration Mentor

07/23/2026

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Digital Tools and AI – “So Happy Together” – Short #295

07/21/2026