For heating systems, the static pressure will increase as the system is heated and the fluid expands. This is normal, and as long as this increase in pressure is kept within the limit of the relief ...

Editor’s note: The Basics department this month is an excerpt from the ISA book Flow of Industrial Fluids – Theory and Equations by Raymond Mulley. Some material in this section may seem self-evident ...

Some conversations with like-minded HVAC professionals have a way of taking on a life of their own, especially when they’re from another country. I recently had a discussion with an HVAC contractor ...