Radiant & Hydronics

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Advancements in the plumbing industry are driven by U.S. Department of Energy regulations, with new efficiency standards for fractional horsepower pumps set for 2028. Plumbing & Mechanical's Nicole Krawcke discussed these changes and performance improvements with Becky Henderson from Grundfos Pumps.

Edward Little High School in Auburn, Maine, utilizes an efficient radiant floor heating system designed by Harriman Associates, using lower temperature water and primarily geothermal energy for a comfortable, sun-like warmth.

The first photo shows an oil-fired boiler and surrounding details. Take a close look, and make a list of what you would change in this portion of the system.

The 2024 Uniform Mechanical Code's Chapter 17 introduces Thermal Energy Networks (TEN), enabling buildings to independently manage heating and cooling sustainably, reducing environmental impact and enhancing energy efficiency across communities.

Use the PIM Method (Preparation, Installation, Maintenance) for effective radiant heating installations, emphasizing clear project intent, proper manifold placement, and regular fluid maintenance to ensure efficiency.

In Ottawa, a homeowner's dream of a luxury clubhouse with an outdoor pool comes to life with True North Mechanical's innovative heating system, ensuring a perfect New Year’s Eve party despite the freezing temperatures.

The Radiant Professionals Alliance (RPA) is enhancing energy efficiency through innovative hydronic systems under new leadership, focusing on collaboration, education, and strategic partnerships.

The Radiant Professionals Alliance (RPA) enhances the radiant industry through education, advocacy, and member support. It offers training, networking, and updates like a new website and geothermal partnerships. Members can participate in committees and events such as the 2025 AHR Expo.

A review of a flawed hydronic heating system uncovers critical errors, such as improper circulator placement and restrictive mixing valves, leading to uneven warmth and corrosion issues. This underscores the need for proper design and installation in hydronic systems.

A hotel’s aging hot water system faces upgrades as leaking tanks are set to be replaced with smaller units. While a full redesign is desired for efficiency, budget constraints may limit the project scope, causing temporary hot water disruptions.