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Boilers & Hydronics

Eclipse Magnetics: Commercial Heating System Filter

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?

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

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

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

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

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

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

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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Boiler Provides Savings and Sustainability

The University of Missouri (MU) in Columbia, Mo. is being commended for its commitment to energy reduction and sustainability through the installation of a new biomass boiler. 


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Taco Inc.: Hydronic Differential Pressure Sensor

A differential pressure sensor has been added to the company’s line of hydronic system components. 


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Multimedia

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2014 SMACNA Annual Convention

Views from the 2014 SMACNA Annual Convention in San Antonio.

Podcasts

NEWSMakers: Chris Mathis

Chris Mathis, president of Mathis Consulting Co. and vice chair of ASHRAE’s residential ad hoc committee, talks about ASHRAE’s exploration into the residential market. Posted on Oct. 17.

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ACHRNEWS

NEWS 10-20-14 cover

2014 October 20

Check out the weekly edition of The NEWS today!

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EFFICIENCY STANDARDS

DOE has denied AHRI’s petition for reconsideration of walk-in standards. Is it getting harder to reach consensus on efficiency standards?
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HVACR INDUSTRY STORE

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2015 National Plumbing & HVAC Estimator

Every plumbing and HVAC estimator can use the cost estimates in this practical manual!

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