Metal Paints and Radiators
Ever wonder why the Dead Men painted so many of those old, free-standing, steam- and hot-water radiators silver? Yeah, so did I. I did some digging and came up with a del...
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.
Hot-Water Heating Categories
Air Elimination
Antifreeze
Boilers
Case Study
Circulators
Combustion
Commercial Heating
Corrosion
Domestic Hot Water
Gravity Hot-Water Systems
Heat Exchangers
Heating System Conversion
Indirect Heating Systems
Indoor Air Quality
Loop Systems
Piping and Pumps
Primary-Secondary Pumping
Pumping Away Piping
Radiant Heating
Radiators
Seminars
Snowmelt Systems
System Pressure
Tanks
Tees
Thermostatic Radiator Valves
Troubleshooting
Valves
Venting
Water Quality
Zoning
Recent Articles in Hot-Water Heating
Baseboard: How Much Is Too Much?
So this hefty gent 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...
The Roots of Radiant Heating Seminar
This seminar was filmed on June 5, 2018 as part of the Labor Lecture Series at the General Society of Mechanics and Tradesmen of the City of New York. Radiant heating wit...
Where to Find Used Radiators
Here are some places to find used and refurbished radiators in the United States and Canada. UNITED STATES ColoradoTons of Radiators - Stroman Plumbing and Heating, Inc. ...
A Copper Mystery
We’ve lived in this little house in Bethpage, NY since 1977. Bethpage was once home to Grumman, which built fighter planes, canoes, campers, buses, and the Apollo Lunar M...
Coffee with Caleffi: Air Vents and Air Separators
The ideal fluid in a hydronic heating or cooling system is a fluid without any impurities, air bubbles or dissolved gases. But how is that accomplished? Kevin Freidt, dir...
Coffee with Caleffi: Temperature Control in Domestic Hot Water Systems
Are the domestic water heating systems you design or install safe? John Siegenthaler, P.E. discusses the potential dangers associated with domestic hot water and how to e...
Three Hydronic Radiant Heating Myths
Myth #1: It’s bad for people with heart conditions Here’s what you’ll hear. “Your feet determine your body temperature, just like a thermostat. If the blood leaves your b...
Coffee with Caleffi: Making a Smart Choice: Tank, Tankless or Combi Water Heaters
For many years the go-to method for heating water was with a tank-styled device. Today, however, industry projections indicate a growing interest in tankless type heaters...
Commercial Domestic Hot Water
My company does not do a lot of commercial work but one specialty niche we have is servicing the boilers and mechanical systems in the turn of the century apartment build...