The most attention-getting equipment in our HVAC Products/Literature/Software section over the previous month:

The following are some common mistakes and tips to avoid problems on commercial boiler projects.

This month’s Facility File will focus on the B2B March test for the retrofit of a 1960s, 250,000-sq-ft hospital conversion to apartments changing out the high-pressure steam boilers to hot water boiler modules.

Understand the thinking behind a system that blends condensing and non-condensing boilers, from the attack on oversizing to a controls strategy that shifts with the weather.

More than 17 billion feet of PEX, or crosslinked polyethylene, has been installed worldwide. That’s enough to stretch to the moon and back almost seven times.

“Insulation systems appear to be simple, but doing them correctly can be complex,” says John Puskar, president of Prescient Technical Services and an expert on codes and standards related to piping, furnaces, and boilers.

Owners, engineers, and contractors are increasingly understanding the advantages of designing new hydronic heating plants using high-efficiency condensing boilers.

Why is NOx such a major concern in the U.S. and elsewhere? NOx consists of roughly 90% to 95% NO and perhaps 5% to 10% NO₂.

This month’s B2B will focus on a new 12-story patient tower located at a health care campus.  This month’s test will address the design intent of an engineered zoned smoke control of return air, supply air, and exhaust air system serving the patient floor common corridors.

What is the value of a healthy and productive human being in a building? If you go to work with a cold, work slowly, and perhaps infect your co-worker, how much money has your employer lost? What are the unseen influences of your office building, hospital room, classroom or home on your health and performance?