Domestic hot water (DHW) and Legionnaire's Disease – GreenBuildingAdvisor

Thank you https://www.greenbuildingadvisor.com/author/Antonio_Bettencourt for reminding  us about managing domestic hot water to avoid Legionnaire’s Disease, for example in this article: https://www.greenbuildingadvisor.com/article/the-myth-of-energy-efficiency-are-we-measuring-the-wrong-thing#0

Our federal government’s Centers for Disease Control and Prevention (CDC) has a comprehensive article here: https://www.cdc.gov/control-legionella/php/toolkit/potable-water-systems-module.html

that expands on Antonio’s comments, providing a number of factors to be concerned about (e.g. “dead legs”, such as to infrequently used faucets, exactly like my guest bathroom), and factors in preventative system design.

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