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Boilers & Hydronics

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A Look at Today’s Geothermal Heat Pumps

New Residential Geothermal Products Feature Higher Efficiencies, Renewable Qualities

Geothermal heat pumps are among the most efficient and comfortable heating and cooling technologies currently available because they use the earth’s natural heat to provide heating, cooling, and, often, water heating. 


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Expansion Tank Pressurization

Improper Air-side Pressurization ‘Wastes’ some of the Internal Volume

Having the proper air-side pre-pressurization prevents system water from entering the expansion tank, until the water begins expanding due to heating. 


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Bosch Thermotechnology: Residential Gas-fired Boiler

Bosch has replaced its Buderus GC124 residential gas-fired boiler with the new precision cast GC144 boiler, a compact Energy Star-compliant boiler capable of delivering best-in-class 85 percent AFUE. 


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Lochinvar LLC: Fire Tube Boiler

The FTXL™ Fire Tube Boiler for light commercial applications comes in five models ranging from 399,999-850,000 Btuh. 


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HVAC Residential Equipment: Efficiency, Installation Ease Grab Awards

Rheem Professional Prestige™ Hybrid Electric Heat Pump Water Heater Wins Gold

The NEWS honors the 2014 Dealer Design Award winners in the HVAC residential equipment category.


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HVAC Commercial Equipment: Winners Invest in Design

Mitsubishi Electric Cooling and Heating Earns Gold

The NEWS honors the 2014 Dealer Design Award winners in the HVAC Commercial Equipment category.


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HVAC Training Track: July 21, 2014

Hydronic-based Biomass Heating Systems

This new, self-paced, online course covers the unique operating characteristics of several wood-fired boilers and goes on to show several examples of complete systems for both residential and commercial/institutional applications. 


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Blame the Kids: The Cause of Your Mechanical Malfunctions

Kids do the Darndest Things, Don’t They?

It took six firefighters to get the kid out of the duct, and Mama got older. Much older.


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Bosch Thermotechnology: Commercial Boiler Control

The Heatronic 4000 commercial boiler control can activate up to four boilers utilizing outdoor temperature reset, space heating set point, and domestic hot water set point or communication received via BACnet and Modbus. 


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The Fulton Cos.: Condensing Boilers

The Endura™ boiler is now available in 750,000 (EDR-750) and 1 million (EDR-1000) Btuh model sizes. 


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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?
View Results Poll Archive

HVACR INDUSTRY STORE

2015.jpg
2015 National Plumbing & HVAC Estimator

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

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