In April, Tom Durkin hosted an extremely popular ES webinar tackling humidity in schools. We ran out of time and had a slew of leftover questions, so here, his engineering team joins him in addressing them. Caveat: The questions often solicit professional opinions based on experience, but that candid exchange is part of the beauty of the webinar, right?
In which the authors take out the original unit designed specifically for K-12 and see how things have changed in the decades since it first went to school. Time and technology have solved some problems, yet an old-fashioned issue like ease of maintenance can still pose headaches (or backaches). All in all, this update about a well-known design option deserves a permanent spot in your three-ring reference binder.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.