Skip to main content
Home page Home page
Main navigation
  • Products
  • Products
  • Education
    Education:
    • idronics™
    • Coffee with Caleffi™
    • Ask Caleffi Podcast
  • Company
    Company:
    • Corporate
    • The Group
    • History
    • Certifications
    • Mission
    • Portfolio
    • The Caleffi Green
  • Blog
Secondary navigation
  • News & Events
  • Contacts
    • EMEA
      • Albania - Albanian
      • Belgium - French
      • Belgium - Dutch
      • Croatia - Croatian
      • Czech Republic - Czech
      • France - French
      • Germany - German
      • Greece - Greek
      • Hungary - Hungarian
      • Italy - Italian
      • Macedonia - Macedonian
      • Netherlands - Dutch
      • Poland - Polish
      • Portugal - Portuguese
      • Romania - Romanian
      • Russia - Russian
      • Serbia - Serbian
      • Slovakia - Slovak
      • Slovenia - Slovenian
      • Spain - Spanish
      • Switzerland - French
      • Switzerland - German
      • Turkey - Turkish
      • Ukraine - Ukrainian
    • The Americas
      • Brazil - Portuguese
      • North America - English
      • South America - Spanish
    • Asia Pacific
      • China - Chinese
    Visit our International site
Home
Home /
... /
Coffee with Caleffi Q&A
Coffee with Caleffi
Blog

Coffee with Caleffi Q&A

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
What is fall-off pressure for a pressure reducing valve?
December 08, 2016

What is fall-off pressure for a pressure reducing valve?

Fall-off pressure is the reduction of pressure at the outlet of a pressure reducing valve (PRV), whe...
Read more
How many gallons of water can I demineralize with your HYDROFILL, before I need to replace the resin bags?
March 24, 2016

How many gallons of water can I demineralize with your HYDROFILL, before I need to replace the resin bags?

It depends on the hardness of the site water. The Water Treatment Capacity table in the HYDROFILL&nb...
Read more
How do I use your new HYDROFILL demineralizer to fill a glycol system?
March 23, 2016

How do I use your new HYDROFILL demineralizer to fill a glycol system?

Unless you know the actual system volume, it would be tough to partially fill with demineralized wat...
Read more
Can a Caleffi Z-one Relay control both domestic hot water heating and space heating using one boiler?
March 03, 2016

Can a Caleffi Z-one Relay control both domestic hot water heating and space heating using one boiler?

Yes, the relay controls have the ability to prioritize DHW demand and they also have the ability to ...
Read more
How do I design a hydronic system for different temperature emitters?
February 10, 2016

How do I design a hydronic system for different temperature emitters?

The most basic, and typically the most economical, way to design a hydronic system for multiple temp...
Read more
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...
Read more
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...
Read more
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...
Read more
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...
Read more
Can I dilute glycol to less than 25% concentration?
July 23, 2015

Can I dilute glycol to less than 25% concentration?

Over-dilution of formulated glycol heat transfer fluid (HTF) causes corrosion problems. The reason f...
Read more
Do I need a double-wall heat exchanger for solar domestic hot water applications?
July 07, 2015

Do I need a double-wall heat exchanger for solar domestic hot water applications?

That is a really good question!  It really varies from state to state, even from city to city. ...
Read more
Does steam-back damage glycol?
July 07, 2015

Does steam-back damage glycol?

A small amount of boiling (in a solar collector that is stagnating) won’t immediatel...
Read more
Main navigation
  • Products
  • Education
  • Company
  • Blog
Secondary navigation
  • News & Events
  • Contacts
Footer menu
  • Cookies
  • Privacy
Caleffi S.p.a.
P.I. IT04104030962 - © 1961 - 2025 Caleffi S.p.a. | All rights reserved