Classic Hydronics Seminar
In this all-technical three-hour seminar, Dan Holohan will give you a Liberal Arts education in those Classic Hydronics systems. He’ll have you seeing inside the pipes as...
Hot-Water Heating → Pumping Away Piping Help Topics
This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.
Recent Articles in Hot-Water Heating → Pumping Away Piping
Pumping Away Piping Webinar
You may think you know what pumping away is all about, but Dan Holohan will tell you how it came to be and all of the fun and interesting things that happened along the w...
Pumping Away on a One-Boiler Hot Water Heating System
Dan Holohan talks about applying the concept of Pumping Away on a one-boiler hot-water heating system. He’ll walk you through a diagram and explain how Pumping Away will ...
Pumping Tips for Hot Water Heating Systems
In this excerpt from his Classic Hydronics seminar, Dan Holohan shares his knowledge about pumps in hot water heating systems. He talks about the history of circulators a...
Podcast: Pumping Away and More
Dan Holohan talks with Bryan Orr of HVAC School about how he got his start in the industry, pumping away, classic hydronics, and more in this entertaining podcast. Click ...
Pumping Away Piping
This is an excerpt from Dan Holohan’s book Pumping Away and other really cool piping options for hydronic systems. Since you've read this far, I figure you must be pretty...
The Point of No Pressure Change
In 1994, I wrote a book called, Pumping Away, which I began by remembering the late, great Gil Carlson. Here's what I wrote: When I knew Gil Carlson, he was never far fro...
Net Positive Suction Head
I was lucky to have had as one of my teachers the late, great Gil Carlson. Gil was Bell & Gossett’s Director of Technical Services and when he would come to New York City...