Radiant & Hydronics

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I’ve written many PM columns discussing how air-to-water and geothermal water-to-water heat pumps can be combined with hydronic delivery systems to deliver efficiency AND superior comfort. This combination is a great solution for many consumers.

An installer is asked to pipe up two larger commercial air handlers supplied by a dual boiler sub-system. The building owner wants to make it possible to supply either air handler from either boiler. Can you spot some shortcomings and suggest a better way to accomplish the same objectives?

Plumbing & Mechanical Chief Editor Nicole Krawcke had the chance to sit down with Tina Gullickson and discuss her goals and strategies in leading Caleffi North America through this next chapter.

The medical profession confronts dual challenges: ensuring positive outcomes for patients while tackling the prevalence of healthcare-associated infections. Healthcare management is deeply focused on addressing these critical issues.

Learn more about the Hutterites, a branch of Anabaptists who live in colonies and operate large-scale farming operations in Western Canada and the upper Great Plains of the United States. Read on to discover some key differences between Hutterites and other similar groups such as the Amish and Mennonites.

There is a growing interest in adding air-to-water heat pumps to existing hydronic heating systems. While I support their use, I do not recommend replacing a perfectly good cast-iron boiler that still has a long service life.

The installer is tasked with setting up a three-zone radiant floor heating system using a 5-ton geothermal heat pump and a mod/con boiler, connected through a primary-secondary system with closely spaced tees. The system includes 4 earth loops of 1” HDPE tubing, each 500 feet long, supplying the heat pump, and features underfloor tubing with aluminum plates.

Sooke School District responded to the influx of young families by swiftly constructing schools for 1,200 students. These LEED v4 Gold-certified buildings seamlessly integrated into the landscape, featuring photovoltaic panels, geothermal HVAC, and district heating for efficiency. Underground piping ensured optimal comfort while minimizing waste.

The 20 products highlighted here have earned the distinction of being Plumbing & Mechanical’s Top Products of 2023 based on the number of pageviews on www.pmmag.com. Congratulations to those products on this year’s list.

Keystone Air Power is a thriving Amish enterprise that runs a fully modern hardware store in Central Pennsylvania. The 52,000-square-foot building is constructed around a cutting-edge, off-grid mechanical and electrical system that demonstrates the Amish's knowledge of smart technology.