Hot-Water Heating 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.

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Recent Articles in Hot-Water Heating

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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...

Published on 11/04/2024 1:30 PM by Dan Holohan
Posted in Hot-Water Heating
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Circulators or Zone Valves

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...

Published on 01/25/2023 1:02 PM by Dan Holohan
Posted in Hot-Water Heating
pumping
Adventures in Pumping

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.

Published on 12/07/2021 11:47 AM by Dan Holohan
Posted in Hot-Water Heating
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Marbles and Ghosts

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 ...

Published on 10/12/2021 3:48 PM by Dan Holohan
Posted in Hot-Water Heating
baseboard
Baseboard Adventures

So this fella comes up to me after a hot-water seminar and tells me about a problem he's having with this copper-fintube baseboard loop he installed in this big hall with...

Published on 07/07/2021 9:31 AM by Dan Holohan
Posted in Hot-Water Heating
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Your Body Is A Radiator

Ever been to Ocean City, Maryland? It’s a summertime wonderland, and I was lucky enough years ago to get hired to do a seminar on hydronic radiant heating for a group of ...

Published on 03/03/2021 10:17 AM by Dan Holohan
Posted in Hot-Water Heating
health nation
What Makes Plumbing Healthy

Clean, safe water is what we expect and need running from our taps, but there are a number of things that can get in the way of that goal. I’m not a scientist, just a plu...

Published on 09/25/2020 9:26 AM by Larry Weingarten
Posted in Hot-Water Heating