Hot-Water Heating → Piping and Pumps Help Topics

Back in my rep days, half a lifetime ago, I sold Bell & Gossett circulators. We didn’t have a viable zone valve available at the time, and when the factory finally showed...

I read somewhere that the most prevalent machine in the world is the electric motor. I thought about that for a while and it made sense. Just look around.

I worked for a manufacturers’ rep when I was first learning about hydronics. A guy I worked with was 15 years older than me. He knew that I had absolutely no training as ...

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...

 

In this excerpt from his Classic Hydronics seminar, Dan Holohan talks about primary-secondary pumping on two-pipe hot water heating systems.

Want to learn more? Read ...

 

In this excerpt from his Classic Hydronics seminar, Dan Holohan shares his knowledge on two-pipe hot water heating systems. He talks about the advantages of two-pipe s...

In this excerpt from his Classic Hydronics seminar, Dan Holohan explains how primary-secondary pumping works in a one-pipe hot water heating system. Dan talks about valve...

In this excerpt from his Classic Hydronics seminar, Dan Holohan shares his knowledge about loop systems in hot water heating. A loop system is the simplest method of heat...

Dan Holohan shares his knowledge about primary-secondary pumping with multiple boilers on hot-water heating systems.

Want to learn more? Read Dan Holohan’s book Classic...

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 ...