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Hydronic Principles
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Hydronic Principles

Blog post categories list
Blog post categories list
Idronics Hydronic Principles Ask Caleffi Podcast Mixing Valves Air Separation Dirt Separation Domestic Hot Water Systems Water Quality Zone Valves and Radiator Valves Balancing Valves Renewable resources Coffee with Caleffi Q&A Zone Relay Controls Manifolds and Mixing Stations Hydraulic Separation Pressure Reducing Valves Filling and Backflow Prevention Certifications Engineering Tools and Documentation Heat Meters BIM Mixing Valves, Thermostatic
"The path of least resistance." Do I really need a balancing valve?
June 29, 2021

"The path of least resistance." Do I really need a balancing valve?

Ask Caleffi Podcast (Episode 6)
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Are corrosion and noise signs of air in a hydronic system?
April 13, 2021

Are corrosion and noise signs of air in a hydronic system?

Ask Caleffi Podcast (Episode 3)
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How Water Behaves in Hydronic Systems
April 10, 2017

How Water Behaves in Hydronic Systems

by Mark Olson, CEO of Caleffi North America, Inc.      as featured in HPAC Maga...
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How do I know when a y-strainer needs to be cleaned out?
July 22, 2016

How do I know when a y-strainer needs to be cleaned out?

A Y-strainer is an in-line filter for hydronic systems. As the strainer starts trapping dirt, r...
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Can I mount an air vent on top of your dirt separators?
May 24, 2016

Can I mount an air vent on top of your dirt separators?

Yes, you can. Air bubbles that make their way into the upper part of a dirt separator housing will b...
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What is the bottom connection on the 551 Series DISCAL?
December 03, 2015

What is the bottom connection on the 551 Series DISCAL?

It is common practice to connect a boiler trim kit, or just an expansion tank, to the bottom of a Ca...
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How is magnetite removed from a hydronic system?
November 20, 2015

How is magnetite removed from a hydronic system?

Magnetic dirt removal in hydronic heating and cooling systems is a hot topic these days. Check out t...
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What is a reset schedule for a heating system? (outdoor reset)
November 12, 2015

What is a reset schedule for a heating system?

With outdoor reset, the system does not run at one fixed water temperature. It is called outdoor res...
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What does magnetite in a hydronic system look like?
November 05, 2015

What does magnetite in a hydronic system look like?

Check out this amazing video showing how a Caleffi 5465 Series DIRTMAG is separating the magnetite o...
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How do I determine head loss in a hydraulic separator?
October 07, 2015

How do I determine head loss in a hydraulic separator?

We get this question often:  "What is the pressure drop in my hydraulic separator?&qu...
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How do I install a thermowell in your ThermoCon tanks?
September 17, 2015

How do I install a thermowell in your ThermoCon tanks?

All of Caleffi's storage tanks have multiple ports.  Installing a temperature sensor t...
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Is there a difference between a buffer tank and a storage tank?
August 12, 2015

Is there a difference between a buffer tank and a storage tank?

Are they the same thing? What's different? Really a tank is a tank. Anytime we use a tank for...
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