Hello, old friend. I’m writing today to say thanks, and to say farewell. This will be my last column.

An installer is asked to replace two aging cast-iron boilers with two mod/con boilers, but reuse as much of the existing distribution system as possible. Can you spot several details, omissions or other quirks that will lead to problems over the life of this system?

Viega’s Hydronic Mixing Block is a mixing device and boiler control with a built-in circulator and microcontroller.

A home in New Hampshire offers a glimpse of how the landscape might be changing within the next decade.

MrPEX’s Integrated Dynamic Control (IDC) is a PC-based intelligent control system which delivers optimized comfort and maximized efficiency.

Radiant heating and cooling systems are not new to the North American market, but there’s a strong trend toward incorporating both, especially for tightly controlled environments such as commercial spaces.

There has never been a better time to be part of the RPA. If you are not a member, you should join.

Mark Olson, who recently announced plans to step aside from leading the company as CEO, will begin transitioning responsibilities to Gullickson over the coming months.

Can you diagnose why this glitch is happening, and suggest alternate methods for constructing this portion of the system?

In this capacity, Rohr will lead the ideation, development and execution of Caleffi’s training platforms including the idronics design journal series, Coffee with Caleffi monthly webinars, Caleffi Academy field training and Ask Caleffi blog and podcasts.