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Tech Tips:

HRVs and ERVs in Commercial Buildings

This tech tip is based on a presentation by Joey Henderson, a veteran symposium speaker and excellent HVAC educator. You can learn more about Joey and the work he does at joejoehvac.com and his YouTube channel HERE. We recently published a tech tip about economizers as a means of bringing fresh air into commercial buildings. […]

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Ventilation Strategies: ERVs, Dehumidifiers, and More

This tech tip recaps the livestream by the same name, featuring HVAC School contributors Matt Bruner and Adam Mufich, as well as special guests Corbett Lunsford and John Semmelhack. You can watch that livestream on our YouTube channel HERE, and you can learn more about the great educational opportunities Corbett has to offer at https://buildingperformanceworkshop.com/. […]

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What is an ERV?

This quick tip was written by Daniel Andersen in the HVAC School Group. Daniel was one of my early encouragements to make the podcast, even though he refuses to come on himself. Thanks, Daniel! ERV – What is it? An energy recovery ventilator allows fresh air from outside to be introduced into the conditioned space […]

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Videos:

IAQ for the HVAC Tech with Brynn Cooksey

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Podcasts:

Outdoor Air & Ventilation Strategies with John Semmelhack, Ty Branaman & Tim De Stasio

In this live-stream episode, Bryan is joined by Tim DeStasio, John Semmelhack, and Ty Branaman for a deep dive into residential ventilation — the often-overlooked “V” in HVAC. The group opens with quick life updates before launching into a wide-ranging conversation covering the three core ventilation strategies (circulation, extraction, and dilution), how tight home […]

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ERVs – What You Need To Know w/ Dr. Bailes

In this episode of the HVAC School podcast, host Bryan sits down with building science expert Allison Bailes to dive deep into the world of Energy Recovery Ventilators (ERVs). The conversation explores the critical role of ventilation in modern homes, highlighting how ERVs have become an essential component of maintaining indoor air quality and […]

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Users with Tag #erv

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#erv #hrv

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How to Evacuate an AC system, Full Vacuum Procedure

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HVAC School – For Techs, By Techs

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.

Becoming a GRIT Host or Mentor w/ Leilani

byBryan Orr

In this episode, Bryan sits down with Leilani for an introduction to GRIT Camps — the hands-on program that brings skilled trades exposure to youth ages 12–17 through community events led by working tradespeople. Leilani explains that a GRIT Camp pairs recruited mentors with students for a day of modules covering safety, carpentry, electrical, brazing, and plumbing, including torch work, PVC and copper fitting, and disassembling HVAC components. Students also learn to read a jobsite-style blueprint and receive a six-in-one screwdriver to take apart and explore. Bryan and Leilani emphasize that while GRIT supplies the curriculum, guides, and structure, the host — typically a contracting business or trade organization — owns the event: recruiting students and mentors, securing a venue, and building real community connections around the day.

A large portion of the conversation walks through who does what. Hosts provide the facility, materials (plywood, 2x4s, copper, PVC, and more, all detailed in GRIT’s guide), and lunch for up to around 30 people, plus a local host facilitator to coordinate logistics and serve as GRIT’s point of contact. Mentors must be certified skilled tradespeople who complete GRIT’s required video course and pass a background check before working with students; volunteers who don’t interact directly with kids are not required to undergo a background check. GRIT, in turn, supplies the camp curriculum, host and mentor guides, registration and marketing materials, badges, student blueprints and PPE, background check coordination, and on-site program leadership from staff like Ty, GRIT’s head of training, who typically arrives the day before to walk the facility with the host.

Bryan and Leilani also dig into planning specifics: camps run from about 9:30 a.m. to 3:30 p.m., cap out at 16 students with a two-students-per-mentor ratio (so eight to nine mentors for a full camp), and generally need 10 to 12 weeks of lead time to hit deadlines for mentor certification, materials gathering, and student registration. They cover the realities of choosing a torch and joining system — MAPP gas and propane versus oxyacetylene for brazing, and why oxyacetylene can’t be used for the popular aluminum-repair activity — along with commonly overlooked items like correctly sized Forstner bits, spare drill batteries, extension cords, and pre-cut lumber. They close with guidance on budgeting (camps typically run $1,500 to $5,000), sourcing a sponsored lunch, handling allergies, inviting community press, and what makes a camp genuinely successful: preparedness paired with passion from both mentors and hosts.

Topics Covered

What a GRIT Camp is and which skilled trades are covered (safety, carpentry, electrical, brazing, plumbing)
Camp roles: host, host facilitator, mentor, students, and volunteers
What hosts are responsible for providing: facility, materials, and lunch
What GRIT provides: curriculum, guides, registration, marketing, background checks, and on-site leadership
Required mentor certification course and background checks
Ideal space setup, table stations, and indoor/outdoor considerations
Student and mentor ratios (16 students max, two students per mentor)
Planning timeline: 10–12 weeks of lead time and key deadlines
Confirming a camp date and the host interest assessment process
Recruiting students and mentors, including waitlists and communication
Choosing a torch and joining system: MAPP gas/propane vs. oxyacetylene brazing
Commonly overlooked or underestimated materials and tools
Safety planning, PPE, and emergency preparedness
Estimated costs and ways to offset them through sponsorships
Lunch planning and handling food allergies
Community and marketing value for hosts
Policies on parents and visitors attending
What makes a GRIT Camp successful

Learn more about the GRIT Foundation or contact us at https://www.thegritfoundation.com/.

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 8th Annual HVACR Training Symposium at https://hvacrschool.com/symposium.

Subscribe to our podcast on your iPhone or Android.

Subscribe to our YouTube channel.

Check out our handy calculators here or on the HVAC School Mobile App for Apple and Android.

Becoming a GRIT Host or Mentor w/ Leilani

Search Episodes

Becoming a GRIT Host or Mentor w/ Leilani

08/13/2026

Bryan Orr

Behind the Drywall – The Psychrometrics of a Hidden Moisture Failure – Short #298

08/11/2026

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HVAC Education. What NOT to Do w/ Jim F., Roman B. and Craig M.

08/06/2026

Bryan Orr

Q&A What Uninsulated Refrigerant Lines Really Cost You – Short #297

08/04/2026

Bryan Orr

Outdoor Air & Ventilation Strategies with John Semmelhack, Ty Branaman & Tim De Stasio

07/30/2026

Bryan Orr

Selecting a Replacement Motor – Short #296

07/28/2026

Bryan Orr

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

Bryan Orr

HVAC Summer Service Calls: Rushing, Mental Fog & How to Stay on Your Game

07/16/2026

Bryan Orr

The House Always Wins! A Class On Building Science Basics – Short #294

07/14/2026

Bryan Orr

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Check our latest Tech Tips

How to Make Better Decisions Uncommon Start and Run Gas Law Concepts for HVAC/R

VIPER SNIPER UNIVERSAL AEROSOL TRIGGER SPRAYER

VIPER SNIPER UNIVERSAL AEROSOL TRIGGER SPRAYER The Viper Sniper is an ergonomic trigger sprayer that fits all standard aerosol cans. Designed for comfort and control, it reduces finger fatigue and delivers a smooth, consistent spray, especially in those hard-to-reach areas. Features quick-attach side clips for easy, secure use. Compatible with all standard aerosol cans —including Viper Aerosol Coil Cleaner and Coil Coating Spray. Fits Any Aerosol Can Full Hand Ergonomic Grip Easily Clips On and Off 2 Sprayers per pack

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER

VENOM PACK CONDENSER PURE CONCENTRATE COIL CLEANER Venom Pack Condenser Cleaner is a high foaming pure concentrate liquid designed to tackle the toughest soils. The proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat transfer and increase the efficiency of the coil.

Viper Condensate Pan and Drain Treatment

Viper Condensate Pan and Drain Treatment Viper Condensate Pan and Drain Treatment is a sprayable gel. It coats the pan, p-trap and drain piping with a lubricative film to improve flow and prevent future soil adhesion. The slow dissolving enzyme gel will outperform and outlast conventional tablets and strips.

Nylog Blue Gasket -Thread Sealant for AC/R Systems

Nylog Blue Gasket -Thread Sealant for AC/R Systems One drop of Nylog on your rubber hose gaskets prior to attaching your core tools, hoses or vacuum gauge will assure that things do not bind or leak during evacuation. Derived from refrigeration grade lubricants. Non-hardening, non-drying fluid which bonds tenaciously to many different substrates. Typically, one drop of Nylog can be stretched about three feet before breaking.

NAVAC

Find out more about the Innovative NAVAC line of Vacuum Pumps

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