About this course

John Siegenthaler discusses the protection of boilers in this free 58-minute lecture.

Enroll today and learn more about the protection of boilers against low entering water temperature and against overheating during power failures.

John discusses the dewpoint of exhaust products, how to protect wood-fired boilers against low water temperatures through thermostatic bypass valves, loading units, variable speed shuttle pumps, and on/off toggled circulators. He also covers the use of circulators, heat dumps, barometric dampers and breach draft in the event of overheating, and much more!

Additional tutorial: download a six page PDF document on Wood Gasification Boiler Protection. This tool provides useful diagrams and details to keep in mind if you have a solid fuel boiler project coming up.

Ready To Sign Up Today? Click Here to Enroll

Course outline

3 modules • 4 assignments • 58 minutes of video lectures

Module 1 • 1 assignments
Watch: Boiler Protection Systems

Watch as John discusses protection considerations for wood gasification boilers.

  • Boiler Protection Systems (58:00) (58:28 minutes)
Module 2 • 1 assignments
Download the Wood Gasification Protection Tutorial PDF

This six page PDF document walks provides useful diagrams and details to keep in mind if you have a solid fuel boiler project coming up.

  • Wood Gasification Protection Tutorial (PDF) (.pdf)


  • John Siegenthaler

    P.E., Appropriate Designs
    View profile

    John Siegenthaler, P.E., is a mechanical engineering graduate of Rensselaer Polytechnic Institute, a licensed professional engineer, and Professor Emeritus of Engineering Technology at Mohawk Valley Community College. “Siggy” has over 40 years of experience in designing modern hydronic systems. He is a hall-of-fame member of the Radiant Panel Association, and a... Learn more

Frequently asked questions

How does this course work?
This is a free course. Enroll today and get access to all of the materials instantly. The lecture video and other materials are available any time.
How long do I have access to the materials?
For free courses there is no guarantee for how long the course materials will be available.
Is there a certificate of completion?
Certificates of completion are only provided to HeatSpring Membership subscribers. This course has not been approved by any credentialing organizations (NABCEP, AIA, USGBC etc) for Continuing Education Credits (CEUs). This course is for self education purposes only and completion does not indicate a level of professional expertise or credential.
Can I register multiple people?
Yes, this is a free course so you can share this page with other people from your group.


Based on 25 reviews
students have taken this course

Very usefull, i recomented it.


have morelecture

Hubert Hogan

Excellent job you did in online

rathnavel A

The use of technology such as cookies allows HeatSpring to operate and improve the functionality of our website and derive insights about our audience.

You can read more about our privacy policy here.