Let's get something out of the way right off the top: saying that we learn best “hands-on” is sort of like saying we prefer to breathe air. WE ALL NEED TO APPLY THINGS TO LEARN THEM DEEPLY! David Sandler wrote the book You Can't Teach a Kid to Ride a Bike in a Seminar, and […]

Air changes per hour (ACH/ACPH) simply describes how many times the quantity of air in a room (or structure) is completely replaced per hour. If you have a 10'x10'x10′ room, the room contains 1000 cubic feet of air. If the supply and return to the room is supplying a balanced 100 CFM (cubic feet per […]

  We've all heard about glide, but what is it really, and how does it affect our system? Glide, or temperature glide, is the difference between the bubble point and the dew point of the zeotropic refrigerant mixture. Well, that wasn't very helpful, was it? All we did was introduce new terms without defining them, […]