
Why DIY HVAC Installs Break Refrigerant Laws & Harm the Trade with Gerry Wagner - Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Gerry Wagner, President of Education, Services & Products Company LLC (ESPCO LLC), and a seasoned HVAC expert who sha...
31 Mar 202526min

HVAC Techs Can Make More Money by Fixing Airflow, Oversizing & Duct Issues – Tim De Stasio Part 2
In this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Tim De Stasio, the owner and president of Comfort Science Solutions. In Part 2, he takes a closer l...
27 Mar 202527min

HVAC Companies Are Replacing Techs with Sales Reps and Overcharging Customers – Tim De Stasio Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie is joined by Tim De Stasio, the owner and president of Comfort Science Solutions LLC, who has become a popular figure in the indust...
25 Mar 202522min

How to Clean HVAC Coils Without Causing Corrosion or Voiding OEM Guidelines | John Pastorello Part 2
In this episode of HVAC Know It All Podcast, host Gary McCreadie continues his convo with John Pastorello, an expert in HVAC cleaning solutions, and CEO at RTX Scientific, Inc dba Refrigeration Techno...
20 Mar 202517min

The Best Coil Coating for HVAC Techs to Prevent Rust & Equipment Failure with John Pastorello Part 1
In this episode of the HVAC Know It All Podcast, host Gary McCreadie, talks with John Pastorello, an HVAC technician and chemist turned innovator, CEO at RTX Scientific, Inc dba Refrigeration Technolo...
17 Mar 202517min

How HVAC Contractors Can Seal 90% of Duct Leaks Without Replacing Ductwork | Dr. Mark Modera Part 2
In this episode of HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Dr. Mark Modera, The Inventor of Aeroseal, Professor at the University of California, Davis, Visiting F...
13 Mar 202516min

Choosing The Right Customer For Your Business: HVAC Monthly Tech Tip
It might take sometime to build the customer base you enjoy working for. Gary McCreadie takes us through how he met another contractor that services high end homes and how how enjoys that service envi...
11 Mar 20259min

How Aeroseal Seals Duct Leaks from the Inside to Stop HVAC Energy Waste with Dr. Mark Modera | Part 1
In this episode of HVAC Know It All Podcast, host Gary McCreadie welcomes Dr. Mark Modera, The Inventor of Aeroseal, Professor at the University of California, Davis, and Visiting Faculty at Berkeley ...
10 Mar 202518min






















