PM columnist John Siegenthaler has completed the second edition of his text “Modern Hydronic Heating.” In addition to the fundamentals, the second edition includes detailed coverage of contemporary hydronic heating topics such as: radiant floor, wall and ceiling heating; primary/secondary piping; injection mixing; control theory and application; homerun and minitube distribution systems; differential pressure bypass valves; variable speed pumping; modulating boilers; multiple boiler systems; buffer tanks; high-capacity domestic water heating; and snow and ice melting systems.

The second edition also includes a CD-ROM with the academic version of the “Hydronics Design Studio” software, created specifically to accompany this text. It includes modules for heating load analysis, baseboard system sizing, hydronic circuit analysis, fluid properties, and expansion tank sizing.

You can view detailed information on the text and download sample pages at