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System COP is a more relevant metric of geothermal heat pump performance since the owner is paying for the electrical energy to operate the heat pump and the circulator, and their operation is always simultaneous.

I do not fully agree with the statement about the quality decline in the plumbing industry. A couple of bad installations do not define the entire plumbing contractor industry. How do we fix it?

How are you polishing your technical skills? How are you taking those next steps in your career? How are you positioning yourself for new opportunities? For me, it’s in-person, in the office.

Jonathan Cristino's knowledge and experience in new heat pump technologies, and his willingness to explore sustainable engineering designs and practices has earned him the distinction of being named PM Engineer’s 2023 Mechanical Engineer of the Year.

In my last column, I focused on talking about how engineered plumbing systems were at a crossroads. This month, I would like to discuss some of the emerging trends in plumbing science.

Have you heard of assistive tables? Over the past few years, this plumbing product has been a hot topic in proposed legislation, code development, and standard development.

The goal is to keep the system COP as high a possible as the operating conditions of the heat pump change. The logic behind maximum COP tracking is to continually look for an earth loop flow rate that improves the system COP.

As the world continues to search for solutions to reduce and eliminate carbon emissions, the plumbing industry suddenly finds itself at the forefront of change.

Often early equipment room planning focuses on the larger electrical and mechanical room components, but it is important not to overlook plumbing and fire protection needs.

Meet PM Engineer’s 2023 Plumbing Engineer of the Year, Kelvin Kennedy, who has been in the plumbing engineering industry for 38 years. Have one conversation with him and his passion for plumbing engineering shines through.