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As businesses embrace sustainability, commercial heat pump water heaters (HPWHs) stand out as a smart investment. By utilizing ambient heat and optimizing energy use, these systems significantly cut operational costs and carbon emissions.

Explore key best practices for emergency eyewash and safety shower systems, highlighting compliance standards and design strategies to ensure effective safety measures in hazardous workplaces.

The shift to water-saving plumbing fixtures has increased drainpipe corrosion and blockages, especially in cast iron and copper pipes. While regulations like the 1994 Energy Policy Act promote water conservation, they also lead to solids buildup, compromising pipe integrity and highlighting the need for effective plumbing maintenance.

Appendix M of the IAPMO Uniform Plumbing Code, or the Water Demand Calculator, was integrated into the California Plumbing Code on July 1. It provides a new method for sizing water pipes in residential buildings. For Villara Corp., a leading plumbing and HVAC contractor in Northern California, it remains business as usual, having used the calculator for over five years to construct over 5,000 single-family homes.

The IAPMO Water Demand Calculator has faced challenges due to exclusions from its documentation and calculations, causing difficulties for engineers in luxury apartment buildings.

PEX's shape memory allows it to expand and shrink without compromising its integrity, making it highly resistant to damage in freezing conditions. This has proven to be a lifesaver in areas like Texas during unexpected mid-winter freezes.

PM Engineer Chief Editor Nicole Krawcke had the chance to speak with several key industry stakeholders about trends and technological developments in the market, including: Greg Nahrgang, vice president, technical services and product development, Charlotte Pipe and Foundry; Adam Botts, product manager for Viega; and Steven Dolejsi, applications engineering manager, IPEX.

PM Engineer Chief Editor Nicole Krawcke sits down with Lance MacNevin, director of engineering, building and construction division of the Plastics Pipe Institute, to discuss top trends influencing the use of plastic pipes in commercial applications.

Most plumbing professionals in residential construction know PEX. They have either used it themselves or know other designers or installers that are using it. That’s because PEX is the piping product used in more new-home construction than copper and CPVC combined.

I first encountered formic acid erosion/corrosion when our installed air conditioning and heat pump evaporator (indoor) coils began suddenly leaking refrigerant in 2008. These were not old coils either, and some had only been installed for a year when the issues arose.