Drawings have consequences. Can you spot few details that are incorrect?

Good system documentation adds value to projects.

Knock on wood. Can you identify at least five errors with this configuration?

A simplified design for cordwood gasification boiler systems.

Tee’d Off

A simple circuit to coordinate fresh air dampers.

One Chance to Get It Right

Designers need more information on “nubbed” foam insulation panels.

Anyone who has worked on the technical side of the hydronics industry has used terminology such as: pressure, differential pressure, head and head loss. These terms all have legitimate and specific meanings.

John Pughe is a long-time colleague of mine and a true hydronics professional. He recently sent me an  “as installed” and “as corrected” schematic for a hydronic heating system with twin 200,000 Btu/hr mod/con boilers, and 15 zones, each powered by its own circulator.