Plumbing & Mechanical Engineer

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This article provides plumbing engineers and system designers with strategies for right-sizing residential plumbing systems based on modern water use data and highlights how traditional sizing methods, like the Hunter’s Curve, often lead to oversized systems that increase costs and wastewater.

Building codes are becoming stricter, carbon targets are becoming law, and there’s more funding available for compliance. For those in plumbing and mechanical trades, system design now involves meeting emissions goals, leveraging incentives, and navigating changing regulations.

Some hydronic heating systems use slab-on-grade floor heating combined with an air handler or fan-coils in other areas of a building. This approach is also used for heated basement floors combined with a “hydro-air” delivery system for the main living areas.

Throughout this period, global governments have been notably active on issues related to chemicals, household equipment, HVAC equipment, mechanical systems, plumbing products, protective equipment, and water heating appliances. I have curated the policy changes to save you time and keep you informed and ahead of the curve.

Check valves are found in and around a pump system, a sump pit, or cracked open a main line. They’re everywhere. And there’s a reason they’re there: to prevent backflow. Backflow isn’t just unpleasant—it’s a serious hazard. It occurs when water or other liquids flow in the opposite direction, contaminating clean systems.

Zoning has always been a premier benefit of hydronic heating and cooling systems. There are many zoning configurations capable of delivering heat (or cooling effect) when and where it’s needed in a building, with minimal effect on the temperature in other parts of the building. Some methods use circulators to create flow in each zone; others use either motorized or thermostatic valves to regulate flow.

Slip-and-fall accidents are among the most common liability claims in winter, according to AAA. Winter storms have cost billions of dollars in insured losses, just in the past few years. For businesses, that’s a major issue. In healthcare facilities where patient safety and uninterrupted access are non-negotiable, the stakes are even higher. Radiant snow melt systems can eliminate surface ice before it becomes a hazard, dramatically reducing legal exposure.

Hybrid systems offer a critical bridge in the transition from fossil fuel reliance to full electrification. For contractors working in colder climates or retrofitting older homes, all-electric heat pump systems can be a tough sell. Hybrid units, however, deliver measurable emission reductions while preserving consistent output and adaptability.

As a thank you for completing the survey, if you provide your name and contact information at the end of the survey, you will be entered into a drawing to win 1 of 10 $50 Amazon Gift Cards.

With over 75,000 square feet of fabrication space, cutting-edge technology, and a “Care First” safety culture that prioritizes both physical and mental well-being, Arden’s success is not just measured in projects completed—but in the trust earned across generations of clients and partners.