Air Source Heat Pump Water Heaters
In this presentation, Gary Klein shares important information about air source heat pump water heaters (HPWH), with particular attention paid to where the warm air comes ...
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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Air Elimination
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Case Study
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Commercial Heating
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Domestic Hot Water
Gravity Hot-Water Systems
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Indirect Heating Systems
Indoor Air Quality
Loop Systems
Piping and Pumps
Primary-Secondary Pumping
Pumping Away Piping
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Thermostatic Radiator Valves
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Water Heaters
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Recent Articles in Hot-Water Heating
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...
Do Radiator Reflectors Work?
We always have turkey for Thanksgiving. I mean who doesn’t? My job wasn’t to cook it, though; it was to eat it.
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...
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.
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 ...
Heat Exchangers in Plumbing and Hydronic Systems
HeatingHelp.com partnered with Caleffi on this Hot Topics with Hot Rod webinar. In this episode, Hot Rod takes a closer look at heat exchangers and answers these question...
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...
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 ...
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...