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Home » Topics » HVAC Contracting

HVAC Contracting
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Fuel Cells Growing in Use in U.S., Especially in CHP Applications

November 21, 2011
In a little more than a year, 34 major corporate customers have installed, deployed or purchased more than 250 fuel cell power systems and hundreds of backup power units, totaling more than 30 MW of power. “The Business Case for Fuel Cells 2011: Energizing America’s Top Companies,” profiles this select group of companies.


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What the Boeing-NLRB Case Means for You

Richard D. Alaniz
November 21, 2011
Boeing Co. is trying to expand production and add manufacturing capacity, something most other companies can only dream about doing in this economy. Unfortunately, Boeing has hit a snag. But it is not the economy that is hampering the company. It’s the National Labor Relations Board (NLRB).


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Solar Cuts Plant's Gas Heating Costs to Near Zero

November 21, 2011
Canadian thermoplastic parts manufacturer Plastech Inc. wanted solar technology to eliminate the $6,000 (CAD) annual natural gas energy costs of heating its shipping area, but without the expense of altering its ivory color building’s aesthetic exteriors or painting it a darker, more absorptive color.


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Honeywell and Haier Establish Joint Innovation Center

November 21, 2011
Honeywell and Haier Group have announced the establishment of the Honeywell-Haier Joint Innovation Center, located in the R&D center of Haier in Qingdao, China.


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Troubleshooting Challenge: A Gas Furnace That Won’t Fire

Jim Johnson
November 7, 2011
In this situation we have a customer who has called for service on their gas furnace, and the description of the problem is “no heat at all.” The customer also reports that this is the first time they’ve had to call for service on their 10-year-old unit.


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Designed to Simplify: Grooved Mechanical Piping Benefits

David L. Hudson
November 7, 2011
Grooved mechanical piping has been changing the way contractors do business for more than 85 years, but this method of pipe joining is still unknown or misunderstood in some areas of the commercial building industry.


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A Look at Payment and Performance Bonds

Vic lance 200
Vic Lance
November 7, 2011
Payment and performance bonds, which fall under the general umbrella of contractors bonds, are typically required on many major construction projects. In fact, most large-scale building projects cannot begin until the bonds are acquired and displayed. Although they are often issued together, payment bonds and performance bonds differ in service.


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New Project to be Largest Residential Solar Project in U.S. History

November 7, 2011
As part of its SolarStrong™ project, SolarCity plans to partner with the country’s leading military housing-privatization developers to install, own, and operate up to 160,000 rooftop solar installations on as many as 124 military housing developments across 33 states.


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Btu Buddy 103: Bob and Tim Begin Heat Pump Repairs

Bill Johnson
October 24, 2011
Bob and Tim have arrived at the apartment house that they have been working at for the last several days. They’ve gone to the roof where the outdoor units are located. There are 60 heat pumps that use R-22 as the refrigerant. They start with Unit No. 2.


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Data Loggers Help Keep Guests Comfortable at Marriott Hotels

October 24, 2011
When a plumbing, heating or cooling snafu occurs in one of the 13 Marriott hotels under his supervision, it is John Miller’s job to root out the problem and preserve the comfort of guests.


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