Articles by Matthew R. Freije

What to know about ASHRAE 188P

Tech Topic: Legionella

Matthew R. Freije

June 22, 2015

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Government, industry leaders on brink of unprecedented Legionella prevention agreement.

The Latest on Legionella

Matthew R. Freije

March 1, 2010

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Plumbing engineers can minimize this prevalent hazard through education and preventive measures.

10 Ways Plumbing Engineers Can Prevent Legionnaires' Disease

Matthew R. Freije

March 1, 2009

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The goal is to design systems that minimize conditions conducive to these and other bacteria, include preventive measures in operating and maintenance specifications, and document preventive recommendations rejected by the owner.

Ten Ways to Minimize Stagnation in Domestic Water Systems

Matthew R. Freije

May 1, 2006

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Piping with low or infrequent flows can be a breeding ground for Legionella bacteria, but the following measures will help to prevent these "dead legs"

Restaurants impose one of the toughest conditions for water heaters. Available space is extremely limited and operating conditions are harsh from thousands of temperature and pressure cycles. Not to mention the loss of hot water causes significant business disruption and revenue loss. In this webinar you’ll learn how to design a system that is not only compact and reliable but also economically efficient.

PM Engineer Magazine

2019 October

The October 2019 issue of pme, features the latest circulator trends, plus John Siegenthaler on geothermal, Dave Yates tells the tale of two engineers, and the annual NSF special section that highlights the topic of water infrastructure.

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