Hey Ed

Should you take supply air measurements for discharge air temperature or relevant humidity? Learn how to get the best reading in this edition of “Hey Ed!”

Want to know how to estimate latent capacity based on water coming out of the drain? Find out how to calculate latent capacity in this edition of “Hey Ed!”

Should you use different outdoor design conditions if you live on a heat island? Find out how to utilize Manual J in this edition of “Hey Ed!”

Why do I use the indoor design condition of 75 degrees at 50% relative humidity? Find the answer with Manual S and Manual J in this edition of “Hey Ed!”

Want to find the minimum velocity in a duct system? Find out how to use Manual D to find the minimum in this edition of “Hey Ed!”

Want to evaluate a system’s refrigerant charge without connecting any gauges? Find out how to wet-bulb for evaluation in this edition of “Hey Ed!”

Want to know what Oil Slugging is? Find out about compressors and oil backflow in this edition of “Hey Ed!”

What exactly is friction rate? Learn where to find the calculation rate in this edition of “Hey Ed!”

In this edition of “Hey Ed”, Ed discusses why the air coming out of the vent is so much louder […]

In this edition of “Hey Ed”, Ed discusses which is heavier – dry or damp air in Manual P.

In this edition of “Hey Ed”, Ed discusses what mass flow is in Manual P.

In this edition of “Hey Ed”, Ed discusses if furnaces dry out the air in Manual P.

In this edition of “Hey Ed”, Ed discusses where a drip leg is meant to be installed.

In this edition of “Hey Ed”, Ed discusses how important a drip leg is for a gas line.

In this edition of “Hey Ed”, Ed discusses if heat really rises.

In this edition of “Hey Ed”, Ed discusses what the deal is with rusty flue pipes when talking about system […]

In this edition of “Hey Ed”, Ed discusses if condensate is always trapped or not.

In this edition of “Hey Ed”, Ed discusses what integrity means with a drain trap.

In this edition of “Hey Ed”, Ed discusses what that thing is in the plastic packaging?