Coffee with Caleffi™ Schedule

Comparing Thermostatic and Electronic Master Mixing Valves for Domestic Hot Water Temperature Control
Thursday, Sep. 27
12 noon CDT

Whether a simple supply-only or a complex multi-branch commercial domestic hot water system with recirculation, the key to delivering reliable hot water temperature is in the point-of-distribution mixing valve. Are there practical guidelines to assist you in choosing the most suitable mixing valve for your DHW application? Kevin Freidt, director of product management and technical support, will take an in-depth look at the design and functional differences, performance and accuracy, sizing and selection, service and maintenance considerations and application of these valves. 

You'll learn: 
→ What are the differences in how they work? 
→ Is one better or more accurate than the other? 
→ Are there important service, maintenance or repair differences to consider? 
→ Which is better at handling low flow conditions? How about high flow, larger projects? 
→ Are there differences when it comes to recirculation applications? 
→ Can a thermostatic valve be used in a system where disinfection to kill bacteria is used? 

Freidt is the intellect behind sizing up the best product offerings in a moving target market and manages an exceptional technical support team. He has a B.S. in Mechanical Engineering Technology, 30+ years’ of experience in the commercial HVAC industry and is a LEED AP.  Our audience will thoroughly appreciate his academic passion and concise content delivery. 

Coffee with Caleffi™ technical training webinars are free and intended for contractors, designers and wholesalers. All attendees receive a Certificate of Attendance following event.  By submitting your webinar registration, you are consenting to email communications to keep you up-to-date on industry news. Please note that your personal information is respected and NOT shared externally. 

→ Registration

Missed a webinar?  No problem, our webinar archive is available 24/7 for your convenience.

If you have questions on webinar content, please direct them to bob.rohr@caleffi.com.

Protecting Boilers Against Flue Gas Condensation
Thursday, Oct. 18
12 noon CDT

For decades, conventional boilers operating on natural gas, propane, fuel oil or wood were intended to be operated at conditions that prevent the flue gases produced during combustion from condensing within the boiler or the venting system. This was easily accomplished when hydronic distribution systems operated at high water temperatures. However, many of these boilers are now being combined with low temperature distribution systems such as radiant floor heating. Without proper detailing and controls this can subject those boilers to operating conditions that result in rapid corrosion and scaling.

John Siegenthaler, P.E., joins the webinar series to discuss why this dangerous condition occurs and will show several methods for avoiding it. You'll learn:

→ What does and doesn’t constitute proper boiler protection?
→ Is a bypass circulator or bypass pipe adequate to protect a boiler from sustained flue gas condensation?
→ Are there hardware options other than mixing valves that provide boiler protection? What are they?
→ Can a boiler be protected against flue gas condensation using a manually set (non-thermostatic) valve?
→ Does proper boiler protection limit the rate at which a boiler can add heat to a building?
→ What is meant by a “thermal clutch” between the boiler and distribution system?

A seasoned industry leader and passionate teacher, John shares his over 35 years’ experience in the understanding and proper application of water-based engineering principles with our audience. He is the principal of Appropriate Designs and a regular contributor to industry publications Plumbing and Mechanical, PM Engineer and HPAC magazines.

Coffee with Caleffi™ technical training webinars are free and intended for contractors, designers and wholesalers.  All attendees receive a Certificate of Attendance following event.

By submitting your webinar registration, you are consenting to email communications to keep you up-to-date on industry news. Please note that your personal information is respected and NOT shared externally. 

→ Registration

Missed a webinar?  No problem, our webinar archive is available 24/7 for your convenience.

If you have questions on webinar content, please direct them to bob.rohr@caleffi.com.

Did you know that we have an entire library of Coffee with Caleffi webinars that you can listen into at your convenience?

You can find the webinar archive here.