Hey Ed, why does Manual J® use one person per bedroom plus one in the data collection part of the survey?
In this edition of “Hey Ed,” Ed discusses the Manual J calculations for bedrooms.
Technical Tips
Matt, what are the signs of a dirty or clogged evaporator coil, and how does it affect system operation?
In this edition of “HVAC Skill Builder,” Matt discusses the negative effects of a dirty or clogged evaporator coil on the overall operation of an HVAC system.
Hey Ed, does placing the outdoor unit for a HP or CAC under the house make sense if there is enough clearance above for airflow?
In this edition of “Hey Ed,” Ed discusses placing an outdoor unit under the house.
MEMBER EXCLUSIVE
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Dew point: The fast, field-ready way to spot moisture and performance issues
When ducts are sweating and customers complain about feeling sticky despite running the AC, the dew point gives you the answer.
Hey Ed, should we try to place the outdoor unit for a HP or CAC in the shade?
In this edition of “Hey Ed,” Ed discusses placing an outdoor unit in the shade.
MEMBER EXCLUSIVE
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Why are dehumidifiers in the basement if moist air is lighter than dry air?
If moist air is lighter than dry air, basement dehumidifiers seem to defy basic physics. A contractor’s simple question reveals a complex building science principle in this members-only exclusive.
Matt, what are the effects of a leaking refrigerant line on system efficiency and cooling capacity?
In this edition of “HVAC Skill Builder,” Matt discusses HVAC system efficiency and cooling capacity with a leaking refrigerant line.
Hey Ed, are returns required in every room?
In this edition of “Hey Ed,” Ed discusses Manual D’s requirement of an uninterrupted path for the air to come out of a supply outlet and get back to the fan.
Hey Ed, is all air standard?
In this edition of “Hey Ed,” Ed discusses the weight of a cubic foot of standard air.
Shift to the Future recap: AI is here! What should I do and not do with it for my business?
Missed this episode of Shift to the Future? We have you covered. In Episode 4, AI is here! What should […]
Hey Ed, what is the most efficient way to connect a return duct to an air handler?
In this edition of “Hey Ed,” Ed discusses the most efficient ways to connect a return duct to an air handler.
Hey Ed, do we ever try to get our systems to meet AHRI SEER2 operating efficiency?
In this edition of “Hey Ed,” Ed discusses AHRI SEER 2 operating efficiency in system design.
Hey Ed, can you give me a brief description of what COP means?
In this edition of “Hey Ed,” Ed discusses the coefficient of performance for HVAC systems.
Hey Ed, what’s this thing I hear you say about turning the TV up when the system comes on?
In this edition of “Hey Ed,” Ed discusses the importance of low-noise systems.
Hey Ed, can you give a brief summary of the balance points that we deal with?
In this edition of “Hey Ed,” Ed discusses thermal and economic balance points.
Hey Ed, how do I avoid committees?
In this edition of “Hey Ed,” Ed discusses the importance of showing up to the meetings.
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.
Hey Ed, is charging with liquid really a thing?
In this edition of “Hey Ed,” Ed discusses the advantages of charging with liquid.
