HVAC Know It All Podcast

HVAC Know It All Podcast

By Gary McCreadie - Licensed Refrigeration/HVAC TechnicianBusinessEducationCareers
Download on the App Store
  • Favorites

    117

    Followers

  • Typical duration

    22 min

    per episode

Based on Podcast App listening data

HVAC Know It All Podcast episodes

  • Which Testo Analyzer Fits Your Work, the 320 or 330? - Part 2

    In this episode of HVAC Know It All, host Gary McCreadie talks with Jamie Chadwick, HVAC Product Manager at Testo Instruments - North America, about combustion analysis and technician safety. They discuss the 320 and 330 analyzers, sensor maintenance, digital reporting, and personal carbon monoxide monitoring. Technicians will learn how clean-air zeroing, annual service, and gas path checks support reliable testing.

    Jamie teaches combustion analysis across furnaces and boilers using natural gas, propane, and oil. His classroom experience highlights practical mistakes, including zeroing near vehicle exhaust and leaving condensate-trap plugs loose. He connects those examples to equipment checks and the need to consult local codes and manufacturer specifications.

    Key Takeaways
    • How combustion readings provide a reference point for evaluating operation alongside local codes and manufacturer specifications.

    • Why field-replaceable sensors do not eliminate the need to send an analyzer in annually to verify its operation.

    • How digital reports preserve dated and timestamped readings and let technicians share test records with customers and the office.

    • How a wearable CO detector with an earbud option can support personal monitoring in loud mechanical rooms.

    • Why zeroing an analyzer in clean outdoor air, away from running vehicles and cigarette smoke, helps prevent distorted readings.

    • How a gas path check helps identify leaks that warrant checking hose connections, filter caps, and the condensate-trap plug.

    Key Timestamps

    00:00 - Factory Direct Filters Ad

    00:42 - Guest and Episode Introduction

    02:42 – Combustion training, operating ranges, and manufacturer specifications

    03:37 – Testo 320 features and guided testing for newer technicians

    06:04 – Testo 330 applications and dilution-pump protection

    10:31 – Wearable CO monitoring with the 317-3

    13:58 – Avoiding exhaust contamination when zeroing an analyzer

    16:45 – Gas path checks and common leak points

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

    Jamie Chadwick - LinkedIn: https://www.linkedin.com/in/jamie-chadwick-b72a43148/

    Testo Instruments - North America - LinkedIn: https://www.linkedin.com/company/testo-usa/

    Testo Instruments - North America - Company Website: https://www.testo.com/en

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    18 min
  • The Contractor Experience Behind Amply's HVAC Software

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero continue the conversation with Eric Fitz, Co-founder, Co-CEO, and Chief Technology Officer at Amply Energy, Inc., and Ed Smith, Co-founder, Co-CEO, and Chief Customer Officer at Amply Energy, Inc., about the operational demands of heat pump work. The discussion covers rebate paperwork, cash flow, subcontractor partnerships, and the opportunity to combine HVAC with whole-home performance services. Eric and Ed explain how contractors can pair technical expertise with reliable processes to compete on trust rather than speed, and how design software and human-supervised AI could support that work.

    Eric and Ed draw on experience with installations, whole-home electrification services, and software development at amply. Their work connects building-envelope assessment, HVAC design, electrical-load considerations, and customer recommendations. They describe a design-focused approach to software development, with tools intended to support contractors' judgment rather than replace their responsibility for the results.

    Expect To Learn:

    -How rebate administration and delayed reimbursements can strain staffing, cash flow, and payroll.

    -Why electrical and weatherization partnerships need shared standards for quality, communication, and customer service.

    -How combining building-envelope improvements with HVAC design supports a whole-home approach to comfort and efficiency.

    -Where design software could connect insulation, electrical-panel assessments, energy forecasts, and phased customer recommendations.

    -How the trust matrix pairs strong processes with technical expertise to distinguish independent contractors from speed-focused competitors.

    -How to improve pricing, quoting, and operations incrementally without sacrificing craftsmanship or customer trust.

    -Why amply's approach to AI keeps humans responsible at the beginning and end of the workflow.

    Timestamps:

    00:00 - Episode Introduction

    00:43 - Rebate Administration, Cash Flow, and Subcontractor Coordination

    02:13 - Building HVAC and Weatherization Partnerships

    04:46 - The Case for Whole-Home Performance Services

    06:06 - Software Gaps for Home Performance Contractors

    07:08 - Design Priorities and Software Integrations

    10:26 - Connecting Whole-Home Recommendations to Quotes

    14:57 - Sustainable Pricing, Trust, and Incremental Improvements

    20:21 - Human-Supervised AI and the Contractor Copilot

    Follow our Guests on LinkedIn:

    Eric Fitz - LinkedIn: https://www.linkedin.com/in/ehfitz/

    Ed Smith - LinkedIn: https://www.linkedin.com/in/ed-smith-5aa8716/

    Follow Our Guest's Company Amply Energy, Inc.:

    • LinkedIn: https://www.linkedin.com/company/amply-energy/home/

    • Website: https://www.amply.energy/

    • Instagram: https://www.instagram.com/amply_energy/

    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/

    Follow Furman Haynes:

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

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

    • Instagram: https://www.instagram.com/workhero__/

    24 min
  • Skipping the First Combustion Test Costs You a Baseline - Part 1

    In this episode of HVAC Know It All, host Gary McCreadie talks with Jamie Chadwick, HVAC Product Manager at Testo Instruments - North America, about putting safety first during heating service and maintenance. They explain testing before and after repairs, recognizing possible carbon monoxide exposure, preparing an analyzer, and selecting a sampling location. Technicians will learn how these practices support safer testing and help document their work.

    Jamie draws on his contracting experience and current training work to connect analyzer procedures with field conditions. His approach emphasizes checking equipment before making changes, verifying operation afterward, and recognizing when emergency services need to make a site safe. He also explains why general training cannot replace checking local codes and manufacturer requirements.

    Key Takeaways
    • How testing before and after service helps document equipment condition and demonstrate the effect of maintenance.

    • Why reported headaches, lightheadedness, or nausea warrant attention to possible carbon monoxide exposure and personal CO monitoring.

    • Why suspected hazardous CO conditions call for evacuation and emergency assistance rather than attempts to continue troubleshooting.

    • How zeroing an analyzer in clean outdoor air and allowing equipment operation to stabilize helps prepare for combustion testing.

    • Why sampling location matters for flue temperature and efficiency readings, and why an outdoor termination reading may not match a reading near the appliance.

    Key Timestamps

    00:00 - Factory Direct Filters Ad

    00:42 - Guest and Episode Introduction

    03:52 - Importance of the safety of the machine

    07:14 - What do the training for Combustion Analysis include?

    12:22 - A walk-through of the Combustion Analysis call

    15:59 - Correct position to put the Combustion Analyzer Probe

    19:17 - Jamie's take on shoving the probe in the termination outside

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

    Jamie Chadwick - LinkedIn: https://www.linkedin.com/in/jamie-chadwick-b72a43148/

    Testo Instruments - North America - LinkedIn: https://www.linkedin.com/company/testo-usa/

    Testo Instruments - North America - Company Website: https://www.testo.com/en

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    21 min
  • Why Your Furnace Vent Pipe Can Leak Years Later Even When the Joint Looks Finished - Part 2

    In this episode of HVAC Know It All, host Gary McCreadie talks with Gaetano Altomare, Category Manager - Plumbing at IPEX by Aliaxis, about installing nonmetallic flue gas venting correctly. They cover pipe preparation, solvent welding, inspection, primer requirements, and combustion testing. Listeners will learn how to avoid weak connections and preserve vent integrity during installation and service.

    Gaetano brings firsthand knowledge of certified venting products, manufacturer installation guidelines, and the development of dedicated combustion-testing fittings. His manufacturer's perspective connects the mechanics of pipe-and-fitting fusion with practical field decisions, including cutting older pipe, verifying compatible components, and sealing test-access plugs.

    Key Takeaways
    • How square cuts, beveled ends, clean pipe surfaces, and a dry-fit interference check help produce a properly fused vent connection.

    • Why certified vent systems require components from one manufacturer and how optical brighteners help inspectors verify primer and solvent cement use.

    • How local requirements, installation temperatures of 32°F and colder, and pipe sizes of six inches and larger determine primer use for the products discussed.

    • How a dedicated combustion-testing fitting installed within two feet of the appliance provides probe access without drilling the vent pipe.

    • Why the test-access plug discussed requires two full turns of Teflon tape rather than relying on plastic threads alone to seal.

    Key Timestamps

    00:00 – Factory Direct Filters Ad

    00:42 – Episode Introduction

    03:14 – Cost difference between PVC and CPVC

    08:18 – Glue or chemical bonding

    11:21 – Primer requirements for temperature and local jurisdiction

    12:33 – Combustion testing without drilling vent pipe

    14:36 – Final installation lesson: sealing the test-access plug

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

    Gaetano Altomare - LinkedIn: https://www.linkedin.com/in/gaetano-altomare-85a78833

    IPEX by Aliaxis - LinkedIn: https://www.linkedin.com/company/ipexbyaliaxis/

    IPEX by Aliaxis - Company Website: https://ipexna.com/

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    16 min
  • The Contractor Experience Behind Amply's HVAC Software

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero welcome Eric Fitz, Co-founder, Co-CEO, and Chief Technology Officer at Amply Energy, Inc., and Ed Smith, Co-founder, Co-CEO, and Chief Customer Officer at Amply Energy, Inc., to discuss how contractors can adapt their sales and design processes for heat pumps. They explore why accurate load calculations matter, how visual design tools help homeowners understand recommendations, and how to make a longer assessment a clear point of difference. The discussion also covers charging for design work, setting expectations during intake, and matching sales responsibilities to the team's expertise.

    Eric and Ed began with whole-home electrification projects across New England, combining weatherization, HVAC, heat pump water heaters, EV charging, solar, and batteries. Eric brought modeling and HVAC design experience, while Ed's learning process helped them identify where software needed to make that expertise easier to apply. Their work alongside installation partners exposed challenges in design and business operations, leading them to shift toward software that supports HVAC contractors.

    Expect To Learn:

    -Why Amply shifted from whole-home electrification projects to supporting HVAC contractors with design software.

    -How Manual J defines a home's loads before equipment selection, regardless of the system being installed.

    -Why heat pump selection requires balancing heating, cooling, moisture removal, and airflow requirements.

    -How visual design information helps homeowners understand recommendations and share them with another decision-maker.

    -How intake staff can explain a longer assessment and prepare homeowners for a more detailed visit.

    -How to choose between paid diagnostics, charging for design documents, and including design in a free estimate.

    -How accessible design tools can help less-experienced employees take on work that otherwise falls to the owner.

    Timestamps:

    00:00 - Episode introduction

    00:57 - Guests introduction and Whole-Home Electrification Origins

    04:37 - Why Amply Energy, Inc. Shifted to Supporting Contractors

    05:34 - Making Design Faster, Accurate, and Visual

    08:35 - Testing Software Through an Installation Business

    10:04 - Preparing a Traditional HVAC Shop for Heat Pumps

    11:11 - Manual J and Heat Pump Equipment Selection

    13:49 - Assessment Time and Homeowner Engagement

    15:36 - Setting Expectations During the Intake Call

    17:16 - Options for Charging for Diagnostics and Design

    18:38 - Helping Less-Experienced Staff Handle Design

    Follow our Guests on LinkedIn:

    Eric Fitz - LinkedIn: https://www.linkedin.com/in/ehfitz/

    Ed Smith - LinkedIn: https://www.linkedin.com/in/ed-smith-5aa8716/

    Follow Our Guest's Company Amply Energy, Inc.:

    • LinkedIn: https://www.linkedin.com/company/amply-energy/home/

    • Website: https://www.amply.energy/

    • Instagram: https://www.instagram.com/amply_energy/

    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/

    Follow Furman Haynes:

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

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

    • Instagram: https://www.instagram.com/workhero__/

    21 min
  • Why Ordinary Drain Pipe Isn't Built to Handle Your Furnace's Heat Over Time - Part 1

    In this episode of HVAC Know It All, host Gary McCreadie talks with Gaetano Altomare, Category Manager - Plumbing at IPEX by Aliaxis, who describes his team's work developing certified flue gas venting products. They examine System 1738, its differences from System 636, and the risks of using generic drain, waste, and vent pipe on gas-fired appliances. Installers will learn how certification, product markings, and appliance instructions inform material selection.

    Gaetano explains how advances in engineered plastics helped his team develop compounds capable of meeting UL 1738 requirements. Drawing on that development experience, he connects mechanical and material testing to long-term exposure to heat and condensate, then explains the temperature limits and applications of PVC and CPVC venting.

    Key Takeaways
    • Why generic drain, waste, and vent materials are not designed for flue gas exposure, including the conditions that can cause ABS to become brittle and crack.

    • How System 636 and System 1738 serve Canadian and US certification requirements, respectively, rather than different appliance operating conditions.

    • How UL 1738 combines mechanical performance and material testing to evaluate suitability for flue gas venting over time.

    • How product labels and print lines identify venting material, certification, manufacturer, and maximum temperature rating.

    • Why the appliance manufacturer's installation manual must guide material selection, including when higher-temperature applications call for CPVC.

    Key Timestamps

    00:00 – Factory Direct Filters Ad

    00:42 – Guest and Episode Introduction

    01:13 – Why generic ABS and PVC are not intended for flue gas venting

    07:54 – System 636 versus System 1738 and their intended markets

    14:54 - PVC and CPVC Pipes

    21:05 – CPVC's 194°F maximum rating and boiler applications

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

    Gaetano Altomare - LinkedIn: https://www.linkedin.com/in/gaetano-altomare-85a78833

    IPEX by Aliaxis - LinkedIn: https://www.linkedin.com/company/ipexbyaliaxis/

    IPEX by Aliaxis - Company Website: https://ipexna.com/

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    22 min
  • Stop Using AI Like a Chatbot with Vern Crawford

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero continue their conversation with Vern Crawford, founder of Flow Logic Automation, about deploying AI in HVAC businesses. Vern demonstrates how automation can move home warranty work orders from email into Housecall Pro, explains the progression from chat to connected business context to code, and outlines options for connecting AI tools to field service data. The discussion also covers debugging workflows, MCP connections, data integrity, and preparing business systems for reliable automation.

    Vern Crawford works with businesses to build AI-enabled automations and system connections. In this conversation, he shares an example of a Make scenario that processes plumbing work orders and describes building and using MCP connections for Housecall Pro.

    Expect To Learn:
    • How a Make scenario can route incoming work orders into Housecall Pro.

    • Why workflow branches handle different customer, address, and job outcomes.

    • How Slack messages can help debug automation decision points.

    • When to use no-code automation tools instead of custom coding.

    • How AI use can progress from chat to connected business context and code.

    • Three approaches to connecting AI tools with Housecall Pro through MCP.

    • Why data integrity and cleanup must come before large automation projects.

    Timestamps:

    00:00 – Introduction to AI deployment in HVAC businesses

    01:28 – Building a Make scenario for warranty work orders

    04:23 – Using Slack messages for debugging

    04:52 – Make, Zapier, and custom agent building

    05:37 – Learning automation through simple workflows

    06:40 – Getting implementation help as a contractor

    07:48 – First impressions of Claude voice conversations

    08:14 – The progression from chat to context to code

    11:09 – Connecting AI to Housecall Pro data

    12:40 – Using AI for direct business feedback

    15:19 – Three ways to build a Housecall Pro MCP connection

    19:45 – Data integrity before automation

    Follow our Guest Vern Crawford:

    • Instagram: https://www.instagram.com/vern_crawford/

    • Company Website: https://www.flowlogicautomation.com/

    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/

    Follow Furman Haynes:

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

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

    • Instagram: https://www.instagram.com/workhero__/

    23 min
  • How One-Inch MERV 11 Filters Can Work With the Right HVAC Airflow Design - Part 2

    In this episode of HVAC Know It All, host Gary McCreadie talks with Chris Howells, Senior Training & Development Manager at AprilAire, about designing smaller filters and cabinets while maintaining filtration performance and airflow. In Part 2 of their conversation, they discuss three-inch media, one-inch MERV 11 filters, and installation practices that affect pressure drop. HVAC technicians will learn why filter depth alone does not determine performance and how transitions help systems use the filter's full face opening.

    Howells describes more than four years of development work informed by contractor, distributor, and consumer feedback. He explains how AprilAire's engineering and product management teams addressed shrinking mechanical spaces through changes to media construction and cabinet design. He also shares field-testing experience that connects those design choices to airflow concerns and maintenance schedules.

    Key Takeaways
    • How smaller mechanical rooms and contractor feedback are driving thinner filter cabinets and changes to their dimensions.

    • How supporting mesh, electrostatic media, and adjustments to metal backing help three-inch filters retain surface area while limiting pressure drop.

    • The role of increased surface area and frame design in AprilAire's one-inch MERV 11 filter offering.

    • Why filter service intervals and field validation matter when matching filtration options to maintenance agreements.

    • How transitions that expose the full filter face help avoid pressure increases caused by undersized return openings.

    Key Timestamps

    00:00 – Factory Direct Filters Ad

    00:42 – Episode overview and Guest introduction

    02:22 – Cabinet evolution and demand for smaller dimensions

    10:49 – One-inch MERV 11 filter design and surface area

    15:03 – Full-face transitions, pressure drop, and replacement practices

    17:24 – Closing remarks

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

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

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

    AprilAire - Company Website: https://www.aprilaire.com/

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    19 min
  • Why a Thicker HVAC Filter Can Have Less Pressure Drop Than a One-Inch Filter - Part 1

    In this episode of HVAC Know It All, host Gary McCreadie talks with Chris Howells, Senior Training & Development Manager at AprilAire, about applying indoor air quality solutions during shoulder seasons and making filtration part of a complete HVAC approach. They cover humidity concerns, filter selection, MERV ratings, pressure drop, airflow, and ways technicians can explain system performance to homeowners.

    Chris draws on his work educating contractors about filtration and indoor air quality. He explains why increasingly sealed homes and modern variable-speed equipment require technicians to assess the full system, including duct design, filter surface area, and delivered airflow, before recommending higher-efficiency filtration.

    Key Takeaways
    • How to use shoulder-season humidity and comfort concerns to start an ethical indoor air quality conversation.

    • Why indoor air quality solutions should address human health and comfort rather than focus on selling products.

    • The relationship between filter MERV rating, pressure drop, surface area, and delivered airflow.

    • How deeper media filters can provide more filtration surface area without equating filter depth with restriction.

    • Why variable-speed ECM motors can be more affected by restrictive filters than older single-stage PSC motors.

    • How static-pressure measurements and visual evidence can help homeowners understand filtration-related system issues.

    Key Timestamps

    00:00 – Factory Direct Filters Ad

    00:42 – Episode overview and Guest introduction

    04:14 – Providing indoor air quality solutions during shoulder season

    06:25 – Dehumidification as the first stage of cooling and its role in comfort

    10:00 - AprilAire and their filtration

    11:57 – One-inch filters, equipment protection, and the impact of pressure drop

    13:32 – How modern variable-speed motors respond to restrictive filters

    17:59 – Filter surface area, depth loading, and comparing one-inch and three-inch media

    21:31 – Showing homeowners static-pressure readings and using a practitioner mindset

    This Episode is Kindly Sponsored by:

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

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

    Factory Direct Filters: https://www.factorydirectfilters.com/

    SupplyHouse: https://www.supplyhouse.com/tm

    Use promo code HKIA5 to get 5% off your first order at Supplyhouse!

    Follow the Guest and His Company on:

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

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

    AprilAire - Company Website: https://www.aprilaire.com/

    Follow the Host on:

    LinkedIn Profile: https://www.linkedin.com/in/gary-mccreadie-38217a77/ LinkedIn - HVAC Know It All: https://www.linkedin.com/company/hvac-know-it-all-inc

    Website: https://www.hvacknowitall.com

    Facebook: https://www.facebook.com/people/HVAC-Know-It-All-2/61569643061429/

    Instagram: https://www.instagram.com/hvacknowitall1/

    Follow the Podcast on:

    YouTube: https://www.youtube.com/@HVACKnowItAll

    Spotify: https://open.spotify.com/show/6LCBJGw0EHG03rdWHxUMce

    Apple Podcasts: https://podcasts.apple.com/us/podcast/hvac-know-it-all-podcast/id1359253455

    27 min
  • How an AI Phone Agent Created $200K in New Business for Plumbing Companies | Vern Crawford

    In this episode of the HVAC Know It All Business Edition Podcast, co-hosts Gary McCreadie and Furman Haynes from WorkHero speak with Vern Crawford, founder of Flow Logic Automation, about practical uses of AI and automation in HVAC and plumbing businesses. They examine an after-hours AI phone agent for plumbing emergencies, the difference between deterministic automations and AI agents, and how APIs, webhooks, and MCPs connect business systems. The conversation also covers starting with simple workflows, using field service management data effectively, and preparing clean data before implementing AI.

    Vern has experience working with Housecall Pro automations and building AI-enabled workflows. He discusses creating an MCP connection for Housecall Pro, using Make.com to process plumbing work orders, and helping businesses implement these systems.

    Expect To Learn:
    • How an after-hours AI phone agent can handle emergency calls and referrals.

    • Why voice, tone, and local context matter when designing AI phone agents.

    • The difference between deterministic automations and AI agents.

    • How a completed-job trigger can improve office visibility in Housecall Pro.

    • Why technician habits and workflow design affect automation success.

    • How AI agents can help interpret technician notes and complete administrative tasks.

    • What APIs, webhooks, and Model Context Protocols do in an AI workflow.

    Timestamps:

    00:00 – Introduction to Vern Crawford and Flow Logic Automation

    01:05 – A practical AI phone agent workflow

    03:57 – AI voice options, tone, and customer reactions

    04:52 – Testing accents and using human reception during business hours

    06:41 – Automation versus AI agents

    10:14 – A starting automation for completed jobs

    11:55 – Technician use of the finish button

    15:19 – Managing variation in HVAC service jobs

    18:03 – APIs, webhooks, and MCPs explained

    19:36 – Model Context Protocols and AI system connections

    21:28 – Webhooks as machine-to-machine messages

    Follow our Guest Vern Crawford & His Company:

    • Instagram: https://www.instagram.com/vern_crawford/

    • Company Website: https://www.flowlogicautomation.com/

    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/

    Follow Furman Haynes:

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

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

    • Instagram: https://www.instagram.com/workhero__/

    23 min

About HVAC Know It All Podcast

From the publisher's feed

The HVAC Know It All Podcast, hosted by HVAC and Refrigeration tech Gary McCreadie, is an industry leading show that focuses on education within the HVAC and Refrigeration Trade - Such as HVAC…

Best of HVAC Know It All Podcast

Ranked by our users in the last 21 days

More shows like HVAC Know It All Podcast

The Joe Rogan Experience by Joe Rogan

The Joe Rogan Experience

227,404 Listeners

Louder with Crowder by Louder with Crowder

Louder with Crowder

37,267 Listeners

Jocko Podcast by Jocko DEFCOR Network

Jocko Podcast

30,704 Listeners

REAL AF with Andy Frisella by Andy Frisella

REAL AF with Andy Frisella

32,763 Listeners

HVAC School - For Techs, By Techs by Bryan Orr

HVAC School - For Techs, By Techs

1,015 Listeners

Building HVAC Science by Bill Spohn

Building HVAC Science

75 Listeners

Hvac Uncensored by Gil Cavey

Hvac Uncensored

110 Listeners

The Home Service Expert Podcast by Tommy Mello: $200 Million Founder|Forbes, Inc., Entrepreneur Columnist

The Home Service Expert Podcast

733 Listeners

The Shawn Ryan Show by Shawn Ryan

The Shawn Ryan Show

46,019 Listeners

AC Service Tech Answers Podcast by Craig Migliaccio

AC Service Tech Answers Podcast

86 Listeners

PBD Podcast by PBD Podcast

PBD Podcast

4,217 Listeners

The Megyn Kelly Show by SiriusXM

The Megyn Kelly Show

39,355 Listeners

The Tucker Carlson Show by Tucker Carlson Network

The Tucker Carlson Show

15,904 Listeners

Did You Know?-The ESCO HVAC Podcast by ESCO Institute

Did You Know?-The ESCO HVAC Podcast

6 Listeners

Reliable Trades Podcast by Adrian Garcia

Reliable Trades Podcast

12 Listeners