HVAC Myths for Homeowners to Fix Sizing Mistakes and End Cold Rooms with Drew Tozer Part 2
Release Date: 07/10/2025
HVAC Know It All Podcast
In this episode of the HVAC Know It All Podcast, host wraps up his chat with from . In Part 02 of their discussion on refrigerant leaks, sealants, and best practices in HVAC diagnostics. Diving deeper into controversial yet evolving topics, Gary and Tyler examine both the theory and field-tested realities of leak detection and system maintenance, shedding light on how technicians can balance practicality, ethics, and innovation in their everyday work. Tyler and Gary talk about how leak sealants in HVAC systems are seen differently now, with some techs testing them and finding they work well...
info_outlineHVAC Know It All Podcast
In this episode of the HVAC Know It All Podcast, host talks with from about the importance of early maintenance for heating systems. Tyler explains how doing checks before the cold weather hits can help prevent issues like cracked heat exchangers, saving time and stress later. They discuss how tackling maintenance during the shoulder season lets you handle repairs in better conditions, avoiding rushed work in the winter. Tyler also emphasizes the need for combustion analysis and safety checks to protect both technicians and customers from carbon monoxide risks. Tyler talks about the...
info_outlineHVAC Know It All Podcast
In part 2 of this episode of the HVAC Know It All Podcast, host continues his conversation with , President of and Director of New Product Development at . In Part 2, they discuss topics like the evolution of vacuuming techniques, moving away from triple evacuation, and why modern two-stage pumps are more efficient. Jim explains how to detect leaks using the decay vacuum method, the importance of nitrogen purging, and how refrigerant and oil behavior affects evacuation times. They also discuss the role of Measure Quick in helping technicians diagnose system issues and communicate better with...
info_outlineHVAC Know It All Podcast
In this episode of the HVAC Know It All Podcast, host welcomes , President of and Director of New Product Development at . They talk about the science behind evacuation, the impact of hose size on evacuation speed, and the common misconceptions around pulling a vacuum. Jim explains how using larger hoses and understanding conductant speed can improve evacuation time and performance. They also discuss the effects of temperature on evacuation, particularly in cold climates, and how to prevent moisture buildup in systems. This conversation provides clear insights for HVAC professionals to...
info_outlineHVAC Know It All Podcast
In this solo episode of the HVAC Know It All Podcast, host , Director of Player Development and Head Coach at Shelburne Soccer Club and President of and , shares real-world lessons from the field, focusing on pulling vacuums and handling customer repairs. He explains why larger hoses improve vacuum speed, clears up common HVAC myths, and stresses the value of testing and thinking critically. Gary also talks about fixing equipment with limited budgets, using a coil-combing tool, and keeping customers running while maintaining safety and trust. It's a helpful, honest episode full of tips for...
info_outlineHVAC Know It All Podcast
In this episode of the HVAC Know It All Podcast, host continues his conversation with , Founder & CEO of , about HVAC solutions for the cannabis industry. John explains how his company approaches retrofit applications by offering full solutions, including ductwork, electrical services, and equipment installation. He emphasizes the importance of designing scalable, efficient systems without burdening growers with unnecessary upfront costs, providing them with long-term solutions for their HVAC needs. The discussion also focuses on the best types of equipment for grow operations. John...
info_outlineHVAC Know It All Podcast
In this episode of the HVAC Know It All Podcast, host chats with , Founder & CEO of , to kick off a two-part conversation about the unique challenges of HVAC systems in the cannabis industry. John, who has a strong background in data center cooling, brings valuable expertise to the table, now applied to creating optimal environments for indoor grow operations. At Harvest Integrated, John and his team provide “climate as a service,” helping cannabis growers with reliable and efficient HVAC systems, tailored to their specific needs. The discussion in part one focuses on the complexities...
info_outlineHVAC Know It All Podcast
In part 2 of this episode of the HVAC Know It All Podcast, host , Director of Player Development and Head Coach at , and President of , switches roles again to be interviewed by , Vice President of HVAC & Market Strategy at . They talk about how much today’s customers really know about HVAC, why correct load calculations matter, and the risks of oversizing or undersizing systems. Gary shares tips for new business owners on choosing the right CRM tools, and they discuss helpful tech like remote support apps for younger technicians. The conversation also looks at how private equity...
info_outlineHVAC Know It All Podcast
In this special episode of the HVAC Know It All Podcast, the usual host, , Director of Player Development and Head Coach at , and President of . takes the guest seat as he’s interviewed by , Vice President of HVAC & Market Strategy at , to discuss the current state of the HVAC industry. They discuss the industry's shifts, like the push for heat pumps, and the importance of balancing technical skills with sales training. Gary talks about the generational gap in the trade and the need for a cultural change to better support new technicians. They also explore how digital tools and online...
info_outlineHVAC Know It All Podcast
In Part 2 of this episode of the HVAC Know It All Podcast, host is joined by , a Culture Consultant, Culture Pyramid Implementation, Public Speaker at . Benjamin shares how real conversations and better training can reduce stress and boost team performance. He introduces a pyramid model for honest communication, direction, fulfillment, and accountability. Benjamin also explains how small changes in workplace culture can lead to big improvements in mental health and job satisfaction for workers. His tips help create safer, more supportive, and efficient work environments. Benjamin Dryer talks...
info_outlineIn this episode of the HVAC Know It All Podcast, host Gary McCreadie chats again with Drew Tozer, author of Feel Good Homes and Partner at Foundry Heat Pumps, and Expert Advisor at Building Decarbonization Alliance and Jouleia. They talk about why right-sizing HVAC systems is so important and how old rules of thumb often lead to discomfort. Drew explains how load calculations, better filters, and smart installs can improve comfort, air quality, and energy use. They also touch on heat pump myths, hybrid systems, and why teaching both homeowners and techs can lead to better results and fewer system issues.
Drew Tozer talks about why many homes feel uncomfortable, drafty rooms, poor airflow, and wrong system sizes. He explains that heat pumps, when chosen and installed right, fix these issues and help save energy. Drew also highlights how indoor air quality is often ignored and why better filters should be standard, not upgrades. Gary shares stories of past installs that prove doing the math and using load calcs lead to better results. They agree that homeowners and techs both need clear info to make smarter choices and keep systems running well for years.
Drew explains that many homes stay cold or drafty because the HVAC system isn’t sized or installed correctly. Like putting on the right shoes, using load calcs helps pick the best heat pump for comfort. He says square footage isn’t enough; you need to know how the house works. Gary shares how better filters, return drops, and smart installs stop airflow issues and dirt build-up. They both say systems should be sized with care, not guesswork, so homes stay comfy, air stays clean, and systems last longer without costly breakdowns.
Expect to Learn:
-
Why load calcs matter more than home size when picking HVAC.
-
How better filters and duct design improve air and comfort.
-
Why most homeowners don’t replace filters often enough.
-
How heat pumps work well without gas or high upkeep.
-
Why simple changes can make HVAC last longer and run better.
Episode Highlights:
[00:00] - Intro to Part 02 with Drew Tozer
[01:45] - Why homeowners get confused by mixed HVAC quotes
[03:33] - Right-sizing improves comfort in cold rooms
[05:04] - Why square footage doesn’t equal HVAC sizing
[08:41] - Indoor air quality and the role of HVAC filters
[11:35] - Why 4-5 inch filters should be standard now
[15:35] - Better filter cabinets mean less maintenance
[20:27] - Drew’s free book and its easy-read format
[22:22] - Why install quality matters more than equipment brand
🎁 Claim Your Free Copy of Feel Good Homes!
Visit https://foundryheatpumps.ca/ to get your free PDF or physical book (available in Ontario). Make your home feel better, starting today!
This Episode is Kindly Sponsored by:
Master: https://www.master.ca/
Cintas: https://www.cintas.com/
Supply House: https://www.supplyhouse.com/
Cool Air Products: https://www.coolairproducts.net/
Follow the Guest Drew Tozer on:
LinkedIn: https://www.linkedin.com/in/drewtozer/
Foundry Heat Pumps: https://www.linkedin.com/company/foundry-heat-pumps/
Building Decarbonization Alliance: https://www.linkedin.com/company/building-decarbonization-alliance/
Jouleia: https://www.linkedin.com/company/jouleia/
Follow the Host:
LinkedIn: https://www.linkedin.com/in/gary-mccreadie-38217a77/
Website: https://www.hvacknowitall.com
Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/
Instagram: https://www.instagram.com/hvacknowitall1/