Legionella bacterium iStock/Thinkstock

Legionella bacterium.

Inadvertent code violation

As a master plumber charged with protecting the health of the nation, I have been opposed to this design People are trying to cut corners and save money on the installation at the risk of exposing end users to the real possibility of contracting Legionnaires’ With the new “no-lead” rules, all components that are in contact with the potable water must comply with specific NSF standards

For many years, there has been a practice in the field of hydronics of taking a code-compliant, dual-use, tank-style water heater and using it for both domestic hot water (DHW) and space heating by circulating the hot water through radiant floor heating circuits. From the outset, as a master plumber charged with protecting the health of the nation, I have been opposed to this design. And quite frankly, I, along with other well-known industry experts, have gone before code development bodies

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