Radiant & Hydronics

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Take a look at the two photos in Figure 1. Do you see any installation practices that might compromise the eventual structural or thermal performance of this slab?

NorthPointe Christian Schools near Grand Rapids, Michigan, has grown from 90 students to over 1,250 across Pre-K to 12th grade. To keep pace with the needs of ever-expanding schools like Northpointe, Chicago Faucets has evolved to meet school safety needs with products like thermostatic mixers and touchless faucets.

Doug Wright moves into the role of chairman. 

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.