In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with John Davidson, Regional Trainer at Fujitsu General America, Inc. John explains how heat pumps work in cold climates by using refrigerant technology to move heat from outside to inside. He discusses the role of coil temperature, pressure, and energy transfer in the heating process. The episode also covers inverter technology, the importance of base pan heaters, and how matched air handlers improve system efficiency. John shares tips for choosing between dual-fuel and all-electric setups based on cost, climate, and home design.

In this conversation, John explains how heat pumps use refrigerant and pressure changes to move heat in cold weather. He gives clear examples to help listeners understand how coils absorb energy even in freezing temperatures. John also talks about the role of inverter compressors in matching indoor heating needs and how newer models improve low-temperature performance. He highlights the importance of base pan heaters and proper drainage to prevent damage during defrost. The discussion ends with a look at dual fuel versus all-electric setups and how system design affects comfort and efficiency.

Expect to Learn:

• How heat pumps move heat from cold outdoor air using refrigerant and coil temperature.

• Why pressure and temperature changes are key to efficient heat transfer in HVAC systems.

• What inverter technology does to match heating needs and improve comfort.

• How base pan heaters prevent ice damage and support proper defrost operation.

• When to choose dual fuel or all-electric setups based on cost, climate, and home needs.

Episode Highlights:

[00:00] - Intro to John Davidson in Part 1

[02:15] - Heat pumps thrive in cold

[03:58] - Visual: How heat really moves

[07:09] - Real-world analogy for temperature difference

[09:20] - Inverter technology explained

[10:53] - XLT/XLT+ capacity in extreme cold

[13:40] - How cold-climate heat pumps gain capacity

[14:35] - Critical role of the base pan heater

[17:28] - Dual fuel vs. all-electric system choice

[22:33] - Systems that monitor efficiency

This Episode is Kindly Sponsored by:

Master: https://www.master.ca/

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

property.com: https://mccreadie.property.com

SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest John Davidson on:

LinkedIn: https://www.linkedin.com/in/johndavisonvrf/

Fujitsu General America, Inc: https://www.linkedin.com/company/general-inc-us/

Website:

Fujitsu General America, Inc: https://www.fujitsugeneral.com/

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/

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes of WorkHero discuss the business side of HVAC with veteran technician and entrepreneur Greg Crumpton, the Vice President of Service Logic. Greg is an expert in mission-critical environments like data centers and hospitals. Greg shares his vast knowledge of the HVAC business, covering everything from financials and profit margins to building a solid team and breaking into specialized markets like liquid cooling.

Expect to Learn:

- How to calculate and interpret key financial metrics like EBITDA and Net Profit for HVAC businesses.

- The importance of team culture and how to build a solid team in an HVAC business.

- Key strategies for moving from working "in" the business to working "on" the business as an owner.

- How to break into mission-critical work, including data centers and liquid cooling systems.

- Tips for retaining top employees and building a culture of excellence within your company.

[00:00:00] - Introduction to the Episode

[00:01:05] - Understanding EBITDA and Profit Margins in HVAC

[00:03:51] - Transition from Technician to Business Owner

[00:06:52] - Building a Strong Company Culture and Team

[00:13:19] - Breaking into Mission-Critical HVAC Work

[00:16:32] - Opportunities in Liquid Cooling and Direct Refrigerant to the Chip

[00:20:57] - Closing Remarks and Contact Information

Follow Greg Crumpton on:

LinkedIn: https://www.linkedin.com/in/crumptonskilledtrades/

Instagram: https://www.instagram.com/gregcrumpton/?hl=en

Facebook: https://www.facebook.com/gregcrumpton.airtight/

Company's Website: https://www.servicelogic.com/

Company's LinkedIn: https://www.linkedin.com/company/service-logic

Follow Furman Haynes on:

LinkedIn: https://www.linkedin.com/in/furmanhaynes/

WorkHero: https://www.linkedin.com/company/workherohvac/

Follow Gary McCreadie:

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/

In part 2 of this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Chris Howells, Senior Training and Development Manager at AprilAire. They discuss briefly about humidification, comparing steam and evaporative humidifiers, and explaining how to properly size and install them. Chris shares tips on using absorption distance to avoid condensation and highlights the role of dew point in home comfort. The episode also covers the health, comfort, and structural benefits of balanced humidity and encourages HVAC professionals to learn more about building science to better serve their customers.

Gary and Chris talk about how the right humidifier setup improves comfort and protects homes. Chris explains how to choose between steam and evaporative systems based on home size, air volume, and building tightness. They go over why absorption distance matters and how to avoid moisture problems in ductwork. Chris shares tips on using dew point to guide humidity levels and highlights the health and energy benefits of proper control. They wrap up with advice for techs to focus on education, not just sales, and to build trust by offering real solutions for better indoor air.

Expect to Learn:

• How to choose between steam and evaporative humidifiers based on home size and airflow.

• Why absorption distance is key to avoiding condensation in ductwork.

• The role of dew point in comfort and how it compares to relative humidity.

• How humidity affects health, energy use, and the life of building materials.

• Why building science knowledge helps HVAC pros solve hidden comfort issues.

Episode Highlights:

[00:00] - Intro to Chris Howells in Part 02

[01:21] - Water Quality & Humidifier Conductivity

[04:58] - Dispersion Tube Placement Guidelines

[06:55] - Effects of Low Humidity

[09:41] - Dew Point vs. Relative Humidity

[11:33] - Building Science in HVAC

[14:03] - AprilAire Overview

[16:45] - Ethical IAQ Solutions for Contractors

This Episode is Kindly Sponsored by:

Master: https://www.master.ca/

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

property.com: https://mccreadie.property.com

SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Chris Howells on:

LinkedIn: https://www.linkedin.com/in/chris-howells-5aa32b64

AprilAire : https://www.linkedin.com/company/aprilaire/

AprilAire (website): https://www.aprilaire.com/

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/

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes discuss the business side of HVAC with veteran technician and entrepreneur Greg Crumpton, the Vice President of Service Logic. Having built and sold his own HVAC business, Greg shares invaluable advice for technicians considering the leap into business ownership. Starting as a technician, he rose through the ranks to service manager, general manager, and eventually founded and sold his own HVAC company. This episode focuses on financial literacy, cash flow management, invoicing, and the crucial mindset shifts needed for success as a contractor-turned-owner.

Expect to Learn:

- Why understanding finances is the cornerstone of starting an HVAC business. - How to price your services correctly and avoid undercharging. - The importance of cash flow, invoicing terms, and collection strategies. - Common mistakes new business owners make - and how to avoid them. - How automation and process improvements can streamline billing and improve profitability.

[00:00:00] – Introduction to the Episode

[00:00:59] – Greg's Background and the Technician-to-Owner Journey

[00:05:09] – Learning the Financial Side of Business

[00:09:42] – Pricing, Margins, and Knowing Your Costs

[00:13:03] – Invoicing Strategy and Payment Terms

[00:17:18] – Automation and Delegation in Billing

[00:19:02] – Setting a Competitive Hourly Rate

[00:21:52] – Gross Margin vs. Net Profit (EBITDA)

Follow Greg Crumpton on:

LinkedIn: https://www.linkedin.com/in/crumptonskilledtrades/

Instagram: https://www.instagram.com/gregcrumpton/?hl=en

Facebook: https://www.facebook.com/gregcrumpton.airtight/

Company's Website: https://www.servicelogic.com/

Company's LinkedIn: https://www.linkedin.com/company/service-logic

Follow Furman Haynes on:

LinkedIn: https://www.linkedin.com/in/furmanhaynes/

WorkHero: https://www.linkedin.com/company/workherohvac/

Follow Gary McCreadie:

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/

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Chris Howells, Senior Training and Development Manager at AprilAire. Chris shares insights on new humidification technology from AprilAire, including fan-powered and bypass humidifiers that reduce water waste. He explains how the HydroCore assembly improves efficiency and maintenance while addressing common concerns like microbial growth. The discussion covers the impact of modern HVAC systems on humidification and how to choose between fan-powered and bypass models. Chris also talks about steam humidifiers and how water quality affects their performance.

In this conversation, Chris explains how the HydroCore assembly improves efficiency and reduces maintenance in modern humidifiers. He shares insights on adapting to changes in HVAC systems, like heat pumps and lower airflow, and discusses how these factors influence the choice between fan-powered and bypass models. Chris also addresses common concerns about mold, outlines proper installation practices, and talks about when steam humidifiers are the most effective option.

Expect to Learn:

• What makes AprilAire's new humidifiers more efficient and how they reduce water waste.

• How the HydroCore assembly works and why it improves performance and maintenance.

• Why lower airflow and heat in modern HVAC systems change how humidifiers should be used.

• When to choose fan-powered versus bypass humidifiers based on system setup.

• How proper installation and service prevent mold and ensure healthy indoor air.

Episode Highlights:

[00:00] - Intro to Chris Howells in Part 1

[02:03] - How humidifiers work: evaporation vs. steam

[03:15] - Homeowner concerns: water waste & maintenance

[05:23] - Educating homeowners and maintenance contracts

[08:59] - How heat pumps affect humidifier performance

[11:31] - Cold vs. hot water feed installation

[14:08] - Fan-powered vs. bypass humidifiers explained

[17:14] - Fan-Powered vs. Bypass Humidifiers: How to Choose

[21:12] - Steam humidifiers & water conductivity

This Episode is Kindly Sponsored by:

Master: https://www.master.ca/

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

property.com: https://mccreadie.property.com

SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Chris Howells on:

LinkedIn: https://www.linkedin.com/in/chris-howells-5aa32b64

AprilAire: https://www.linkedin.com/company/aprilaire/

Website:

AprilAire: https://www.aprilaire.com/

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/

In part 2 of this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Sal Randisi, Vice President of Business Development at Kano Labs - Makers of Kroil and Super Lube. They discuss the role of lubricants in HVAC maintenance, from penetrating oils like Kroil to dielectric greases and anti-seize solutions. Sal explains the importance of using the correct viscosity based on ISO standards and shares how proper lubrication can extend equipment life. The episode also highlights the benefits of products like Kroil with graphite and the new low-odor Kroil Clear for sensitive environments.

Gary and Sal talk about how the right lubricants help HVAC techs keep systems running smoothly. Sal explains why using the correct oil viscosity matters and how ISO numbers help match specs across equipment. They go over when to use products like Kroil for rusted parts and how patience makes a difference with tough bolts. Sal shares tips on using dielectric grease, anti-seize, and new low-odor products for clean indoor jobs. They wrap up with advice on picking the best lube for each task and keeping tools ready for any service call.

Expect to Learn:

• Why ISO viscosity standards matter when choosing lubricants for HVAC systems.

• How Kroil helps loosen rusted parts and why patience improves results.

• When to use products like Kroil with graphite or silicone for added protection.

• The best ways to use dielectric grease and anti-seize for long-term maintenance.

• How to build a complete lube kit for service calls in different HVAC settings.

Episode Highlights:

[00:00] - Intro to Sal Randisi in Part 02

[02:01] - Introducing Kroil & Lubricant Talk

[05:07] - Lubricant Standards (ISO vs. Others)

[07:38] - How to Use Kroil Effectively

[14:15] - How Kroil's "Creeping Oil" Technology Works

[16:12] - Service Technician Mindset

[20:31] - Closing Remarks & Appreciation

This Episode is Kindly Sponsored by:

Master: https://www.master.ca/

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

property.com: https://mccreadie.property.com

SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Sal Randisi on:

LinkedIn: https://www.linkedin.com/in/sal-randisi-10b58131/

Kano Labs - Makers of Kroil and Super Lube: https://www.linkedin.com/company/kano-laboratories/

Website:

Kano Labs - Makers of Kroil and Super Lube: https://www.kroil.com/

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/

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes of WorkHero discuss with guests Kimberly Sevilla, Founder of Shelter Air and Peter Troast, Founder & CEO of Energy Circle LLC, how to break down the most important and often overlooked steps to building an HVAC company's online presence. From setting up a high-impact Google Business Profile to navigating customer reviews, virtual phone numbers, service areas, and answer-engine optimization, this episode is a masterclass in building digital trust and ranking above competitors

- How to properly set up your Google Business Profile for maximum ranking

- Why your phone number matters more than you think

- Smart review strategies that boost credibility

- How to leverage Google Posts, Q&A, and seasonal category changes.

- The power of niching down & owning your local market radius

- Grassroots strategies for winning your first customers

[00:00:00] – Introduction

[00:00:54] – Online Booking vs Personal Touch

[00:02:37] – Why You Shouldn't Use Your Personal Cell Number

[00:04:10] – Google Business Profile: The Starter Pack

[00:06:09] – Review Strategy 101

[00:10:40] – The Power of the 24-Hour Rule

[00:14:39] – From SEO to AEO: Answer Engine Optimization

[00:15:48] – Finding Your First Customers

[00:18:09] – Referral Systems That Actually Work

[00:18:53] – Should You Discount Friends & Family?

[00:19:50] – Shoulder Season Survival Tips

[00:21:37] – Final Advice for New HVAC Owners

Follow Kimberly Sevilla on:

LinkedIn: https://www.linkedin.com/in/kimberlysevilla

Company's Website: https://shelter-air.com/

Company's LinkedIn: https://www.linkedin.com/company/shelterair

Company's Facebook: https://www.facebook.com/ShelterAir/

Company's Instagram: https://www.instagram.com/shelter.air/?hl=en

Follow Peter Troast on:

LinkedIn: https://www.linkedin.com/in/petertroast

Instagram: https://www.instagram.com/petertroast/?hl=en

Facebook: https://www.facebook.com/peter.troast/

Company's Website: https://www.energycircle.com/home-page

Company's LinkedIn: https://www.linkedin.com/company/energy-circle-llc

Follow Furman Haynes on:

LinkedIn: https://www.linkedin.com/in/furmanhaynes/

WorkHero: https://www.linkedin.com/company/workherohvac/

Follow Gary McCreadie:

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/

In this episode of the HVAC Know It All Podcast, host Gary McCreadie talks with Sal Randisi, Vice President of Business Development at Kano Labs - Makers of Kroil and Super Lube. Sal shares his expertise on lubrication, focusing on the importance of using the right grease for HVAC and industrial equipment. He explains how different greases work, the role of additives, and why over-greasing can cause failures. Sal also talks about best practices for maintaining bearings, including how to measure grease output and set proper schedules. The episode highlights how using the correct products and techniques can save time, prevent equipment wear, and improve overall maintenance.

Sal Randisi, Vice President of Business Development at Kano Labs, joins Gary to talk about the science and best practices of lubrication. Sal explains what lubricants are, how they work, and why choosing the right one is key to keeping HVAC and industrial equipment running smoothly. He shares common mistakes like using the wrong grease or over-greasing bearings, which can lead to breakdowns. Sal also highlights how grease guns vary in output and why that matters for maintenance schedules. The conversation covers grease chemistry, color myths, and the benefits of using a multipurpose product like Super Lube to simplify work and extend equipment life.

Expect to Learn:

• What lubricants are and why the right one matters for HVAC and industrial use.

• How over-greasing or using the wrong grease can lead to equipment failure.

• Why do different grease guns deliver different amounts, and how to measure output correctly?

• How to set a proper maintenance schedule to save time and prevent breakdowns.

• Why the grease color does not equal performance, and how to choose the right product for the job.

Episode Highlights:

[00:00] - Intro to Sal Randisi in Part 1

[02:28] - Lubrication Science & Purpose

[04:33] - Case: UV Damage to Grease in Southern California

[07:09] - Sealed vs. Greaseable Bearings

[10:39] - Proper Greasing: Volume & Scheduling

[15:16] - Grease Color Myths Debunked

[20:08] - Multipurpose Grease Benefits

This Episode is Kindly Sponsored by:

Master: https://www.master.ca/

Cintas: https://www.cintas.com/

Cool Air Products: https://www.coolairproducts.net/

property.com: https://mccreadie.property.com

SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Sal Randisi on:

LinkedIn: https://www.linkedin.com/in/sal-randisi-10b58131/

Kano Labs - Makers of Kroil and Super Lube: https://www.linkedin.com/company/kano-laboratories/

Website:

Kano Labs - Makers of Kroil and Super Lube: https://www.kroil.com/

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/

In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes of WorkHero discuss with guests Kimberly Sevilla, Founder of Shelter Air and Peter Troast, Founder & CEO of Energy Circle LLC, how to craft a compelling brand identity, build a high-impact website, and leverage AI for content creation. Whether you're launching a new HVAC business or revamping your marketing strategy, this episode provides critical insights on standing out in a saturated market.

Kimberly shares her expertise in targeting the right customer through a tailored visual identity. Peter brings years of experience in website development, SEO, and digital branding strategies for service businesses.

Expect to Learn

- How to create a strong visual identity that reflects your HVAC business values.

- Tips on using AI and freelance platforms for affordable branding and logo creation.

- Best practices for building a functional, story-driven HVAC website.

- The value of storytelling and blogging for local SEO and customer engagement.

- Balancing authenticity with automation in customer communication.

Episode Breakdown with Timestamps

[00:00:00] – Introduction to the Episode

[00:01:27] – Welcome to HVAC Know It All

[00:01:52] – Visual Branding Fundamentals

[00:04:23] – Standing Out in a Sea of Sameness

[00:07:32] – DIY Branding Tools & Advice

[00:10:29] – AI vs Human Touch in Branding

[00:11:44] – Storytelling as a Marketing Tool

[00:15:30] – Making Contact Easy for Emergencies

Follow Kimberly Sevilla on:

LinkedIn: https://www.linkedin.com/in/kimberlysevilla

Company's Website: https://shelter-air.com/

Company's LinkedIn: https://www.linkedin.com/company/shelterair

Company's Facebook: https://www.facebook.com/ShelterAir/

Company's Instagram: https://www.instagram.com/shelter.air/?hl=en

Follow Peter Troast on:

LinkedIn: https://www.linkedin.com/in/petertroast

Instagram: https://www.instagram.com/petertroast/?hl=en

Facebook: https://www.facebook.com/peter.troast/

Company's Website: https://www.energycircle.com/home-page

Company's LinkedIn: https://www.linkedin.com/company/energy-circle-llc

Follow Furman Haynes on:

LinkedIn: https://www.linkedin.com/in/furmanhaynes/

WorkHero: https://www.linkedin.com/company/workherohvac/

Follow Gary McCreadie:

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/

In part 2 of this episode of the HVAC Know It All Podcast, host Gary McCreadie continues his conversation with Jason Esteves, General Manager Americas at Seitron Americas Inc. They explore advanced concepts in combustion analysis, focusing on detecting cracked heat exchangers using oxygen changes and carbon monoxide levels. Jason explains why even a half percent shift in oxygen can signal serious issues and breaks down how combustion behaves in low-fire conditions. The discussion includes real-world examples, challenges with equipment startups, and tips for using analyzers like the NOVO. They also cover practical steps to update the analyzer's firmware for added features.

Gary and Jason dive into the real process of spotting cracked heat exchangers using oxygen levels and CO readings. Jason explains how even a small shift in oxygen can mean a big issue and why looking at both O2 and CO is key. They talk through examples from real service calls and explain how low gas flow affects combustion readings. Jason shares why accurate data matters and how techs can avoid mistakes with proper analyzer checks. They end by showing how to update the NOVO tool so techs can use the newest test features in the field.

Expect to Learn:

1. How to detect a cracked heat exchanger using small changes in oxygen levels.

2. Why carbon monoxide readings alone are not enough to confirm a crack.

3. What happens during low-fire conditions and how it affects combustion data.

4. How to check your analyzer for leaks or setup issues before trusting the numbers.

5. How to update the NOVO analyzer with new features right from your computer.

Episode Highlights: [00:00] - Intro to Jason Esteves in Part 02 [02:25] - Finding & Testing Heat Exchanger Corrosion [04:34] - Oxygen Change: The Key Indicator of a Crack [07:12] - Story: Startup Issues with Makeup Air Units [09:30] - Combustion Analysis with Low Gas Input [11:25] - Importance of Proper Startup and Commissioning [15:47] - Update the NOVO Analyzer for Cracked Heat Exchanger Mode

This Episode is Kindly Sponsored by: Master: https://www.master.ca/ Cintas: https://www.cintas.com/ Cool Air Products: https://www.coolairproducts.net/ property.com: https://mccreadie.property.com SupplyHouse: https://www.supplyhouse.com/tm Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

Follow the Guest Jason Esteves on: LinkedIn: https://www.linkedin.com/in/jason-esteves-9690255/ Seitron Americas Inc: https://www.linkedin.com/company/seitron-americas-inc/

Website: Seitron Americas Inc: http://www.seitronamericas.com/

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/