HVAC product selection is not as easy as it sometimes seems. For sure, the key part of engineering is the KIS principle (Keep It Simple). However, the KID principle (Keep It Defendable) is even more ...

Retrofit fan replacement on a 3-ton HVAC with economizer system for a 2 kW transmitter site. Insulation on ducts was added shortly after this pic was taken. This is the first in a two-part series.

Whether one is the design engineer or the HVAC mechanical contractor supervisor, when it comes to closing out a construction phase capital project, the most efficient, cost-effective method is via a ...