Hey Ed, how do I avoid committees?
In this edition of “Hey Ed,” Ed discusses the importance of showing up to the meetings.
Author: Ed Janowiak
Ed Janowiak is ACCA's Manager of HVAC Design Education and can be reached at ed.janowiak@acca.org or 703-824-8878.
Hey Ed, which is heavier? Dry air or wet air?
In this edition of “Hey Ed,” Ed discusses the weight of dry air versus wet air.
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And the engineer said…..
While attending ACCA 2025 at the Kalahari Resort in Texas this past March, I was asked a question that comes up often. The question focused on adding extra BTUs to the calculated heat gain to account for what was described as “additional loads.”
Hey Ed, is charging with liquid really a thing?
In this edition of “Hey Ed,” Ed discusses the advantages of charging with liquid.
Hey Ed, are AHRI ratings useful?
In this edition of “Hey Ed,” Ed discusses AHRI ratings and their usefulness in comparing various makes and models of air conditioners and heat pumps.
Hey Ed, do ceiling fans help?
In this edition of “Hey Ed,” Ed discusses the efficacy of ceiling fans in the summer and winter months.
Hey Ed, what is managing expectations?
In this edition of “Hey Ed,” Ed discusses managing customer expectations when it comes to their heating and cooling system.
Hey Ed, what’s with the gray refrigerant tanks? Did the refrigerant manufacturers run out of colors?
In this edition of “Hey Ed,” Ed discusses gray refrigerant tanks.
Hey Ed, are digital gauges better than analog gauges?
In this edition of “Hey Ed,” Ed discusses digital gauges versus analog gauges.
Hey Ed, is there a new EPA 608 certification for A2Ls?
In this edition of “Hey Ed,” Ed discusses the new EPA 608 certification for A2Ls.
Hey Ed, is A2L to be charged as a liquid?
In this edition of “Hey Ed,” Ed discusses how A2L can be charged as a liquid.
Hey Ed, is zeroing your gauges calibrating them?
In this edition of “Hey Ed,” Ed discusses how zeroing your gauges is not the same as calibrating them.
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Manual D® or duct design: How are you calculating airways?
Something I’ve observed for quite some time, but it seems to need more attention lately, is how we are actually sizing airways— commonly referred to as ductwork. I appreciate when people say they’re using the Manual D® process when discussing duct designs.
Hey Ed, what does our coil temperature (suction saturation temperature) look like?
In this edition of “Hey Ed,” Ed discusses suction saturation temperatures.
Hey Ed, what is the difference between an air handler, a fan coil, and a furnace?
In this edition of “Hey Ed,” Ed discusses the differences between air handlers, fan coils, and furnaces.
Hey Ed, Will asks, “What’s your favorite go-to Manual D® software?”
In this edition of “Hey Ed,” Ed discusses the best way to do your Manual D® calculations.
Hey Ed, can a home’s location be substituted for another location with similar weather?
In this edition of “Hey Ed,” Ed discusses substituting a home’s location for another.
