Articles by John Siegenthaler, P.E.

Some hydronic system designers cling to certain system piping configurations — even when existing projects using those configurations have produced problems.

Anyone who says they wouldn’t change a thing on the hydronic systems they’ve designed or installed over the last decade is either so oblivious to changes in technology that they don’t know any better, so egotistical they can’t accept that improvement of their work is possible, or so foolish they don’t care what they’re missing out on.

Part of running any business is looking ahead and trying to read the “tea leaves” that are relevant to that business. 

Modern panel radiators are one of my favorite heat emitters.

Whenever a hydronic system is divided into several zones, it’s worth considering a buffer tank between the heat source and distribution system.

There are sorted opinions about using expansion tanks within closed geothermal earth loops. 

I’m fortunate to be living next door to a very unique hydronic heating/cooling system.