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Home » heating

Articles Tagged with ''heating''

Close-up of a manifold with flow meters regulating water pressure in an underfloor heating system, ensuring efficient temperature control.
Renewable Heating Design | John Siegenthaler

Balancing high- and low- mass heat emitters to prevent temperature "droop"

John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
September 9, 2025

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.


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A concrete walkway partially covered with light snow.

No slips, no shutdowns: ensuring access with snow melt systems

How radiant snow melt systems are transforming winter safety around the U.S.
Kristen Bayles 200x200 headshot
Kristen R. Bayles
August 12, 2025

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.


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Boiler room inspection
Hydronics Workshop | John Siegenthaler

Using antifreeze vs. water in hydronic circuits

What’s the difference?
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
August 4, 2025

One concept that’s getting increasing attention among HVAC engineers is “resilient design.” It refers to approaches that - ideally - allow systems to remain operational under very abnormal conditions, or minimize effects that could cause major damage to systems when and if they are otherwise rendered inoperative.


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NIBCO has expanded their Webstone G-series.

NIBCO Webstone G-series end connections and air separator body

All products in the Webstone G-series are suitable for plumbing and heating applications.
June 10, 2025

NIBCO expands its Webstone G-Series lineup with versatile new fittings and accessories designed for customized installations. 


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Buildup inside the iron pumps
Heating Perceptions | Scott Secor

Hidden issues and high bills: troubleshooting radiant heat in a luxury home

A seven-figure renovation leaves a high-end radiant heating system underperforming.
Scott Secor
Scott Secor
June 10, 2025

A plumber recently asked us to inspect a home with issues related to radiant heating. The homeowner, Ronny, runs a company that builds commercial office buildings, and the plumber handles the plumbing work.


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Harry Warren, Inc. directors posing for a group photo in the conference room.

Plumbing & Mechanical 2025 Rep of the Year: Harry Warren, Inc.

A rep agency with small beginnings and a focus on family
Kristen Bayles 200x200 headshot
Kristen R. Bayles
June 5, 2025

Celebrating over 50 years of service, Harry Warren, Inc. has been named Plumbing & Mechanical’s 2025 Rep of the Year. Over the years, this family-run agency has grown from a one-man operation into a leading manufacturers’ rep by staying true to its core values: integrity, service and people-first leadership.



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Six tankless water heaters that feed the nutraceutical manufacturer’s operations.
Case Study

How to deliver large volumes of hot water quickly and intermittently

California-based nutraceutical manufacturer meets large, spiking hot-water needs with a combination tankless-and-tank system.
John O’Reilly
May 13, 2025

Proper water heater sizing in any application hinges primarily on user consumption within a given period. That much is probably obvious, even to someone who has never sized a water heater. What complicates matters, especially in a large commercial application, is the cadence of that usage.


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John Siegenthaler, Hot Rod Rohr and Dave Yates reunite at the Lochinvar booth at AHR 2025.
Contractor's Corner | Dave Yates

Eye candy from The AHR Expo 2025

Go with the flow
Dave Yates
Dave Yates
May 12, 2025

Eye candy would best describe many of the products on display at the great AHR Exposition recently held in Orlando Florida’s Convention Center.


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Figure 1 is a sketch of the flow problems of the current plumbing system.
The Glitch & The Fix: May 2025

Hydronic heating glitch solved: Why adding a circulator won't fix primary loop flow issue

Cut & cap
John Siegenthaler 200x200 author headshot on a white background.
John Siegenthaler, P.E.
May 8, 2025

When the system was operated, the owner complained of flow problems. The heat emitters in any given zone were only marginally warmed when their associated zone circulator was operating. The owner questioned if another circulator should be installed.


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Overhead view of the exterior of a NextGen Plumbing, Heating and Cooling designed and installed a radiant heating system for a 15,000 square foot mansion in New Jersey.
Case Study

New Jersey contractor installs radiant system in 15K square foot mansion

Thomas Renner
May 7, 2025

As a young and relatively new business owner, Dylan D’Amato had been looking for a signature residential project to establish his company and himself as an industry leader in the competitive New Jersey market. The design, installation and service of a radiant heating system for a 15,000-square-foot mansion will help D’Amato achieve that goal.


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