Boilers & Hydronics

Avoiding Thermal Depression

A New Way to Protect a Heating System
September 9, 2013

A cool concrete slab is like a black hole for Btus. It gobbles up any heat that dares to get close. The solution is to install a mixing assembly operated by a controller that measures the boiler’s inlet temperature, as well as the water temperature supplied to the distribution system.


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Bosch Thermotechnology: Tankless Water Heaters

September 9, 2013

For commercial applications, the Therm C 1210 ESC tankless water heater provides up to 98 percent thermal efficiency. 


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Eclipse Magnetics: Commercial Heating System Filter

September 2, 2013
Potentially damaging ferrous oxide from heating systems is removed by the BoilerMag XL, a high-performance, easy-clean filter for commercial premises. 


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A History of Steam Pressure Relief Valves

Who Truly Gets Credit for the Invention of the Steam Pressure Relief Valve?
August 12, 2013

In 1905, a boiler in a Boston shoe factory blew up, traveled a great distance through the air, and landed, with delightful justice, in the front yard of the operating engineer’s house. Think it got his attention?


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Energy and Power Are not the Same Thing

True Professionals Use Clear Definitions and the Proper Terminology
July 8, 2013

When it comes to the difference between energy and power, our industry tends to get sloppy with its terminology. 


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The Challenges of Early 20th Century High-Rise Steam-Heating Systems

June 3, 2013

This system is the missing link between one- and two-pipe steam. It was used in tall buildings in the early 1900s because a building this tall wouldn’t work well with one-pipe steam if the supply came up from the basement. 


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Zurn Industries LLC: Radiant Floor Piping

June 3, 2013

A radiant floor heating solution leveraging Polyethylene of Raised Temperature Resistance (PE-RT) technology from The Dow Chemical Company (Dow) is the hy-PE-RTube™.


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Future-Proofing Hydronic Systems

Low Water Temperatures are the Key
May 13, 2013

A tradeoff has always existed between the water temperature at which hydronic heat emitters are sized and their cost. The higher the supply water temperature assumed by the designer, the smaller the required heat emitters and the lower their installed cost. 


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Gasmaster Industries Inc.: Dual-Fuel Condensing Boilers

April 8, 2013
Two dual-fuel natural gas/propane and No. 2 fuel oil condensing boilers — GMI-8M-DF and GMI-4M-DF — have been added to the company’s condensing boiler lineup. The boilers can run either natural gas or propane as the main fuel with No. 2 fuel oil as the backup.


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Bryan Steam LLC: Hot-Water Condensing Boilers

April 1, 2013

Ultra-high efficiency, the Triple-Flex™ Series of hot-water condensing boilers deliver a minimum 90 percent operating efficiency with 160°F return and 180° supply at maximum input. 


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