#tubing sizing

Tech Tips:

Why is 3/8″ Liquid Line So Common? – Liquid Line Sizing

You may have noticed that 3/8″ liquid lines are generally the norm in equipment 5 tons and under. We went to a job where the system had a 1/2″ liquid line, and it got me thinking about the ramifications of going larger or smaller on the liquid line. Liquid Line Basics The liquid line should […]

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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.

This podcast episode is of Bryan’s session from the HVAC School Symposium, “10 Things I’ve Learned in the Last 10 Years.” Delivered as HVAC School approaches its 10-year milestone and Kalos hits 20 years, Bryan blends technical know-how with personal stories, revealing how his “expertise” is a product of constant learning—often from the very audience he’s addressing.

Bryan’s presentation weaves together practical HVAC lessons and relatable anecdotes, offering a glimpse into his growth as a technician, educator, and leader. He tackles wire sizing versus breaker sizing, debunking outdated myths tied to the National Electrical Code and sharing tales of sparring with inspectors over code-compliant innovations. On vent sweating and duct leakage, he provides actionable fixes—like sealing boots and tackling attic moisture—while urging techs to look beyond bandaids. Bryan also dives into coil corrosion, distinguishing formicary from galvanic causes and advocating for field-driven research over manufacturer spin. His interactive style shines as he pauses for audience questions, fostering a dynamic exchange where attendees refine his insights.

The talk balances technical depth with human wisdom, spotlighting patience, joy, and consistency as cornerstones of his journey. Bryan recounts Eureka moments—like unraveling why high-latent markets defy evaporator temperature expectations—and credits mentors like Jim Bergmann and peers like Jordan Cummings for sharpening his perspective. He wraps up with a personal touch, addressing work-life balance as a father of 10 and business owner, advocating for mutual sacrifice with family over unilateral trade-offs.

Topics Covered:

Wire Sizing vs. Breaker Sizing: Debunks NEC myths and shares strategies for navigating inspector challenges.
Vent Sweating Solutions: Offers practical fixes like sealing boots and managing attic moisture sources.
Evaporator Temperature in High-Latent Markets: Explains unexpected suction pressure behavior with lower airflow.
Control Layers in Ducts and Walls: Clarifies roles of vapor, air, and thermal barriers in system design.
Formicary vs. Galvanic Corrosion: Differentiates coil leak causes, highlighting VOCs and flux issues.
Low-Level CO Monitoring: Stresses its importance for safety in homes with combustion appliances.
Duct Leakage: Links leaks to moisture and pressure woes, with visual diagnostic tips.
Filtration Importance: Pushes for larger, sealed filters over inadequate factory setups.
Compression Ratio and Dehumidification: Explores why ductless/inverter systems falter at moisture removal.
Personal Growth and Joy: Ties patience, consistency, and community to a rewarding career.
Work-Life Balance: Shares lessons on balancing family and work through shared sacrifice.

Have a question that you want us to answer on the podcast? Submit your questions at https://www.speakpipe.com/hvacschool.

Purchase your tickets or learn more about the 6th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

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