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  • HVAC Tattoo

    Gary McCreadie | | Categories: HVAC , Tattoo

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    It’s Sunday night, the snow is falling gently at a steady pace in my small town just north of Toronto.  Something in the air has triggered my mind to re-conjure up images of HVAC and trade related tattoos, actually that’s complete bullshit, I purposely sat down to write this article.  It…

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  • A Smart Way To Tackle Residential Service This Winter

    HVAC Know It All | | Categories: Universal Parts

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    Most of us have heard the statement, Work Smarter, Not Harder before. So, what does that mean in a residential HVAC service business?  1)    Take the shortest route to the call? 2)    Make sure your truck is stocked with the right parts before you head out for the day 3)    Pack your lunch…

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  • The Hot And Cold Of It Vol 1 - First Impressions

    HVAC Know It All | | Categories: First Impressions

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    Rick Ruscigno CMHE Lincoln Technical Institute mr.rickruscigno@gmail.com The Hot & Cold Of It Vol 1 First Impressions We are all familiar with the saying, “don’t judge a book by its cover,” but the truth is you will in fact be judged within your first seven seconds of an encounter. A first impression is formulated by at…

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  • Evacuation Procedure

    Gary McCreadie | | Categories: Evacuation , Vacuum Pump

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    Pulling a proper vacuum is vital to the operation and longevity of any refrigeration or cooling system.  Moisture and other contaminants that are not removed can wreak havoc on system internals over time and can cause premature failures.  Lets go through the steps of pulling a proper vacuum.   1.    Start…

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  • The Do's and Don'ts of an HVAC Apprentice

    HVAC Know It All | | Categories: HVAC , HVAC Apprentice

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    I am very excited to post this blog, Steve is the first official guest blogger at hvacknowitall.com.  Apprentices pay attention, thanks Steve!  If you are interested in contributing in any way shoot me an email gary@hvacknowitall.com.  Happy HVACing!   The Do's & Don’ts of an HVAC apprentice By Steve Wiggins The night before his first…

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  • HVAC Ninja

    Gary McCreadie | | Categories: HVAC , HVAC Ninja , HVAC Success

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    Back in fifteenth century Japan, the Ninja were known as mercenaries or spies responsible for sabotage, assassination, espionage and many other devious actions.  Being the complete opposite of the honourable Samurai, who would battle face to face with their opponent, the Ninja would carry out their mission in the shadows…

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  • The Pro In Profanity

    Gary McCreadie | | Categories: HVAC , HVAC Language

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    As I sat and pondered the use of profanity that is used daily in the trades, I was also coincidentally listening to the Howard Stern show.  My new Ford Transit 150 comes with a free trial of Sirius Satellite Radio.  I used to listen to Howard fifteen years ago when…

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  • Ain't No Fooling With Free Cooling

    Gary McCreadie | | Categories: Damper , Economizer , Enthalpy Sensor

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      What is an economizer?  Simply put, it is a mechanical device that is designed to reduce the consumption of energy, whether it be fuel, electricity, or other. According to Wikipedia, the first economizer was patented by Edward Green in 1845.  It was used to increase the efficiency of stationary steam…

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  • The Making Of A Know It All

    Gary McCreadie | | Categories: blogone , firstblog , making of a knowitall

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    Who the hell is this guy?  This know it all character?  I bet he's some pumped up jackass with a bad attitude...Yep, heard it all before.  Actually, there have been a few that have openly admitted they did not want to join my Facebook group because of the name.  I…

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